SECTION I. TROUBLESHOOTING INFORMATION GENERAL
k. Wiring Information
Figure 11. Typical Terminal Board Connections
SECTION II. TROUBLESHOOTING METHODS AND CHECKS - TM-1-1520-238-T-4_036
19 ROADMAP APPROACH (cont)
SECTION III. GENERAL PROCEDURES SUMMARY
112 DURING TROUBLESHOOTING (cont)
116. ELECTRONIC EQUIPMENT TEST FACILITY (EETF) TESTABLE LRUs
116 ELECTRONIC EQUIPMENT TEST FACILITY (EETF) TESTABLE LRUs (cont)
117. MAINTENANCE HEADSET CONNECTION PROCEDURE
117. MAINTENANCE HEADSET CONNECTION PROCEDURE (cont)
CHAPTER 2 AIRFRAME
CHAPTER 3 LANDING GEAR SYSTEM - TM-1-1520-238-T-4_046
SECTION I. EQUIPMENT DESCRIPTION AND DATA - TM-1-1520-238-T-4_047
Figure 32. MLG and Cross Tube Assembly
Figure 33. Trailing Arm Assembly
(4) Wheel and Tire Assembly
(2) Trailing Arm Assembly
(5) Wheel and Tire Assembly. - TM-1-1520-238-T-4_052
(5) Wheel and Tire Assembly. - TM-1-1520-238-T-4_053
Figure 38. Tail Wheel Lock Actuator System
Figure 39. MLG Brake System
Figure 311. Wheel Brake Assembly and Brake Disc
33. EQUIPMENT DATA
Table 31. Landing Gear System Controls and Indicators
SECTION II. THEORY OF OPERATION - TM-1-1520-238-T-4_059
(b) Trailing Arm Assembly.
(f) Wheel and Tire Assembly.
(d) Wheel and Tire Assembly
(e) Tail Wheel Lock Actuator System
Figure 315. Tail Wheel Lock/Unlock Actuator Electrical Operation
Figure 316. MLG Brake System
(d) Parking Brake System.
SECTION III. TROUBLESHOOTING PROCEDURES - TM-1-1520-238-T-4_067
Figure 318. Directional Control Pedals and Pilot Parking Brake Handle
310. MAIN LANDING GEAR MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_069
310. MAIN LANDING GEAR MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_070
311. TAIL LANDING GEAR MAINTENANCE OPERATIONAL CHECK
Figure 320. Pilot TAIL WHEEL Panel and Tail Wheel Assembly
311. TAIL LANDING GEAR MAINTENANCE OPERATIONAL CHECK (cont)
312. LEFT OR RIGHT MAIN WHEEL ASSEMBLY DOES NOT ROTATE FREELY
313. PILOT BRAKE IS NOT FIRM OR WHEEL ASSEMBLY ROTATES (WITH 313 PRESSURE APPLIED)
314. PARKING BRAKE HANDLE RETRACTS WHEN BRAKES ARE SET TO PARK 314 (BRAKES DO NOT SET)
315. PARKING BRAKE HANDLE DOES NOT RETRACT
316. CPG BRAKE IS NOT FIRM OR WHEEL ASSEMBLY ROTATES (WITH PRESSURE 316 APPLIED)
317. UNEVEN TIRE WEAR EXISTS
318. TAIL WHEEL LOCK ACTUATOR LOCKING PIN DOES NOT ENGAGE LOCKING 318 PLATE OR DOES NOT DISENGAGE FROM LOCKING PLATE
318. TAIL WHEEL LOCK ACTUATOR LOCKING PIN DOES NOT ENGAGE LOCKING 318 PLATE OR DOES NOT DISENGAGE FROM LOCKING PLATE (cont)
319. TAIL WHEEL DOES NOT RETURN TO CENTERLINE
319. TAIL WHEEL DOES NOT RETURN TO CENTERLINE (cont)
TM-1-1520-238-T-4_84
SECTION I. EQUIPMENT DESCRIPTION AND DATA - TM-1-1520-238-T-4_085
42. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS (cont)
Figure 43. Engine AntiIce Subsystem
(2) Engine AntiIce Subsystem
Figure 45. Engine Start Subsystem
(6) Engine Power Controls
Figure 47. Engine Power Controls
Figure 48. Engine Indicator Controllers
43. EQUIPMENT DATA
44. EQUIPMENT CONFIGURATION
46. CONTROLS AND INDICATORS
Table 41. Power Plants Controls and Indicators
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_098
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_099
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_100
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_101
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_102
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_103
SECTION II. THEORY OF OPERATION - TM-1-1520-238-T-4_104
Figure 411. Power Plants Functional Block Diagram
Figure 412. Firewall Louver Assembly
(2) Engine Exhaust Subsystem
(3) Engine AntiIce
Figure 416. AntiIce and Start Bleed Valve Operation
(5) Power Quadrants
(c) Engine turbine
SECTION III. TROUBLESHOOTING PROCEDURES - TM-1-1520-238-T-4_112
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_113
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_114
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_115
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_116
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_117
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_118
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_119
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_120
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_121
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_122
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_123
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_124
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_125
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_126
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_127
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_128
410. POWER PLANTS POWER UP
Figure 421. Pilot ELEC PWR Panel
Figure 422. Pilot Center and Aft Circuit Breaker Panels
Figure 423. Pilot EXT LT/INTR LT Panel
411. POWER PLANTS POWER DOWN
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1)
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_135
Figure 427. CPG Power Quadrant
Figure 429. Pilot Caution/Warning Panel
Figure 430. Engine 1 Overboard Fuel Drain Locations
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_139
Figure 432. CPG Caution/Warning Panel
Figure 434. Pilot Instrument Panel (Left side)
Figure 435. CPG Instrument Panel (Right Side)
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_143
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_144
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_145
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_146
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2)
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_148
Figure 437. Overboard Fuel Drain Locations
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_150
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_151
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_152
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_153
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_154
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_155
M58-018-1B SHEET 1 OF 21
M58-018-2B SHEET 2 OF 21
M58-018-3C SHEET 3 OF 21
M58-018-4D SHEET 4 OF 21
M58-018-5D SHEET 5 OF 21
M58-018-6C SHEET 6 OF 21
M58-018-7C SHEET 7 OF 21
M58-018-8B SHEET 8 OF 21
M58-018-9D SHEET 9 OF 21
TM-1-1520-238-T-4_165
M58-018-11D SHEET 11 OF 21
M58-018-12C SHEET 12 OF 21
M58-018-13B SHEET 13 OF 21
M58-018-14B SHEET 14 OF 21
M58-018-15A SHEET 15 OF 21
M58-018-16B SHEET 16 OF 21
M58-018-17D SHEET 17 OF 21
TM-1-1520-238-T-4_173
M58-018-19B SHEET 19 OF 21
M58-018-20B SHEET 20 OF 21
M58-018-21B SHEET 21 OF 21
415. TORQUE SHARING SYSTEM MAINTENANCE OPERATIONAL CHECK
415. TORQUE SHARING SYSTEM MAINTENANCE OPERATIONAL CHECK (cont
416. TORQUE SHARING SYSTEM WIRING INTERCONNECT DIAGRAM
417. ENGINE 1 TORQUE INDICATION IS LOWER THAN ENGINE 2 TORQUE INDICATION 417 (INDICATIONS NOT WITHIN 5% OF EACH OTHER)
418. ENGINE 2 TORQUE INDICATION IS LOWER THAN ENGINE 1 TORQUE INDICATION 418 (INDICATIONS NOT WITHIN 5% OF EACH OTHER)
419. ENGINE 1 DOES NOT ACCELERATE TO OR REMAIN BETWEEN 23% AND 25% NG 419 IN IGN OVRD
419. ENGINE 1 DOES NOT ACCELERATE TO OR REMAIN BETWEEN 23% AND 25% NG 419 IN IGN OVRD (cont)
420. ENG START CIRCUIT BREAKER DOES NOT STAY CLOSED (WITH ENG START NO 1 420 SWITCH IN START POSITION)
420. ENG START CIRCUIT BREAKER DOES NOT STAY CLOSED (WITH ENG START NO 1 420 SWITCH IN START POSITION) (cont) - TM-1-1520-238-T-4_185
420. ENG START CIRCUIT BREAKER DOES NOT STAY CLOSED (WITH ENG START NO 1 420 SWITCH IN START POSITION) (cont) - TM-1-1520-238-T-4_186
TM-1-1520-238-T-4_187
422. ENG START ENG NO 1 INDICATOR REMAINS LIGHTED ABOVE 52% NG
423. ENGINE 1 OUT INDICATORS ARE LIGHTED WITH ENGINE 1 RUNNING
424. ENGINE 1 NG DOES NOT REMAIN STABLE WITH CKT A SWITCH CLOSED
425. ENGINE 1 NG DOES NOT REMAIN STABLE WITH CKT B SWITCH CLOSED
426. ENGINE 1 NG DOES NOT DECREASE WITH CKT A AND CKT B SWITCHES 426 CLOSED
427. CHIPS ENG 1 INDICATOR IS LIGHTED
428. OIL BYP ENG 1 INDICATOR IS LIGHTED
429. FUEL BYP ENG 1 INDICATOR IS LIGHTED
430. FUEL PSI ENG 1 INDICATOR IS LIGHTED
431. CPG ENGINE NO 1 PWR LEVER CANNOT BE ADVANCED TO LOCKOUT
432. PILOT ENGINE CHOP INDICATOR DOES NOT LIGHT WITH PILOT COLLECTIVE STICK 432 IN CHOP
TM-1-1520-238-T-4_199
434. CPG ENGINE CHOP INDICATOR DOES NOT LIGHT WITH CPG COLLECTIVE STICK 434 IN CHOP
435. CPG COLLECTIVE STICK DOES NOT RESET CHOP FUNCTION
436. ENGINE 2 DOES NOT ACCELERATE TO OR REMAIN BETWEEN 23% AND 25% NG 436 IN IGN OVRD
436. ENGINE 2 DOES NOT ACCELERATE TO OR REMAIN BETWEEN 23% AND 25% NG 436 IN IGN OVRD (cont)
437. ENG START CIRCUIT BREAKER DOES NOT STAY CLOSED (WITH ENG START NO 2 437 SWITCH IN START POSITION)
438. ENG START ENG 2 INDICATOR IS NOT LIGHTED WITH ENGINE 2 STARTED
TM-1-1520-238-T-4_206
440. ENGINE 2 OUT INDICATORS ARE LIGHTED WITH ENGINE 2 RUNNING
TM-1-1520-238-T-4_208
442. ENGINE 2 NG DOES NOT REMAIN STABLE WITH CKT B SWITCH CLOSED
443. ENGINE 2 NG DOES NOT DECREASE WITH CKT A AND B SWITCHES CLOSED
444. CHIPS ENG 2 INDICATOR IS LIGHTED
445. OIL BYP ENG 2 INDICATOR IS LIGHTED
446. FUEL BYP ENG 2 INDICATOR IS LIGHTED
447. FUEL PSI ENG 2 INDICATOR IS LIGHTED
448. CPG ENGINE NO 2 PWR LEVER CANNOT BE ADVANCED TO LOCKOUT
449. ENGINE 1 DOES NOT START
449. ENGINE 1 DOES NOT START (cont)
450. ENGINE 2 DOES NOT START
450. ENGINE 2 DOES NOT START (cont)
451. OIL PSI ENG 1 INDICATOR IS LIGHTED WITH ENGINE OIL PSI X 10 INDICATING 451 MORE THAN 22 PSI
452. OIL PSI ENG 2 INDICATOR IS LIGHTED WITH ENGINE OIL PSI X10 INDICATING 452 MORE THAN 22 PSI
453. EMERG PWR INDICATOR IS NOT LIGHTED WITH CKT B SWITCH SET TO ENG 1
453. EMERG PWR INDICATOR IS NOT LIGHTED WITH CKT B SWITCH SET TO ENG 1 (cont)
454. EMERG PWR INDICATOR IS NOT LIGHTED WITH CKT B SWITCH SET TO ENG 2
454. EMERG PWR INDICATOR IS NOT LIGHTED WITH CKT B SWITCH SET TO ENG 2 (cont)
455. ECS AIRFLOW PRESENT WITH ENG START NO 1 SWITCH AT IGN OVRD
455. ECS AIRFLOW PRESENT WITH ENG START NO 1 SWITCH AT IGN OVRD (cont)
456. ECS AIRFLOW PRESENT WITH ENG START NO 2 SWITCH AT IGN OVRD
456. ECS AIRFLOW PRESENT WITH ENG START NO 2 SWITCH AT IGN OVRD (cont)
457. EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT 457 (ENGINE 1 NP LAGS BEHIND ENGINE 2 NP DURING RECOVERY MANEUVER)
457. EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT 457 (ENGINE 1 NP LAGS BEHIND ENGINE 2 NP DURING RECOVERY MANEUVER) (cont)
458. EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT 458 (ENGINE 2 NP LAGS BEHIND ENGINE 1 NP DURING RECOVERY MANEUVER)
458. EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT 458 (ENGINE 2 NP LAGS BEHIND ENGINE 1 NP DURING RECOVERY MANEUVER) (cont)
459. ENGINE 1 DOES NOT RESTART CKT A AND CKT B SWITCHES RELEASED
459. ENGINE 1 DOES NOT RESTART CKT A AND CKT B SWITCHES RELEASED (cont)
460. ENGINE 2 DOES NOT RESTART CKT A AND CKT B SWITCHES RELEASED
460. ENGINE 2 DOES NOT RESTART CKT A AND CKT B SWITCHES RELEASED (cont)
461. PILOT POWER QUADRANT PANEL EDGELIGHT DOES NOT LIGHT
462. CPG POWER QUADRANT PANEL EDGELIGHT DOES NOT LIGHT
CHAPTER 5 ROTORS - TM-1-1520-238-T-4_240
SECTION I. EQUIPMENT DESCRIPTION AND DATA - TM-1-1520-238-T-4_241
Figure 51. Rotor System
Figure 52. Main Rotor Head Assembly
Figure 53. Main Rotor Blade Assembly
Figure 54. Tail Rotor Assembly
53. EQUIPMENT DATA
Table 51. Rotor System Controls And Indicators
Table 51. Rotor System Controls And Indicators (cont)
SECTION II. THEORY OF OPERATION - TM-1-1520-238-T-4_249
Figure 58. Rotor System Block Diagram
SECTION III. TROUBLESHOOTING PROCEDURES - TM-1-1520-238-T-4_252
518. RECOMMENDED STEPS PRIOR TO AIRCRAFT OPERATION
519. GROUND TRACK AND ADJUSTMENT USING AVA EQUIPMENT
b. PERFORM GROUND TRACK (GNDTRK) MEASUREMENT
c. ADJUSTMENT OF PITCH LINKS
520. INITIAL CHECK AND ADJUSTMENT USING AVA EQUIPMENT
b. PERFORM INITIAL MEASUREMENT
d. COMPARING MOVES BETWEEN FLIGHTS
e. WEIGHT ADJUSTMENT
c. Inspection
521. FLIGHT CHECK AND ADJUSTMENT USING AVA EQUIPMENT
521. FLIGHT CHECK AND ADJUSTMENT USING AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_263
521. FLIGHT CHECK AND ADJUSTMENT USING AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_264
Figure 519. AVA Track Trend
Figure 520. Polar Chart
Figure 521. AH64 Vertical Effect for TAB Changes
Figure 523. AH64 Lateral Effect for Weight Changes
CUSTOM SOLUTIONS
Utilizing the MAXIMUM # OF ADJUSTMENTS
Figure 524. AVA Vibration Trend
Figure 525. Before and After Vibration Levels on AVA
d. TRIM TAB ADJUSTMENTS
522. MAIN ROTOR TRACK AND BALANCE TROUBLESHOOTING USING 522 AVA EQUIPMENT
523. TAIL ROTOR BALANCE MAINTENANCE OPERATIONAL CHECK USING 523 AVA EQUIPMENT
523. TAIL ROTOR BALANCE MAINTENANCE OPERATIONAL CHECK USING 523 AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_276
523. TAIL ROTOR BALANCE MAINTENANCE OPERATIONAL CHECK USING 523 AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_277
523. TAIL ROTOR BALANCE MAINTENANCE OPERATIONAL CHECK USING 523 AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_278
524. ISOLATING/MONITORING OTHER VIBRATIONS USING AVA EQUIPMENT
Spectrums
524. ISOLATING/MONITORING OTHER VIBRATIONS USING AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_281
b. Install accelerometer
524. ISOLATING/MONITORING OTHER VIBRATIONS USING AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_283
CHAPTER 6 DRIVE SYSTEM
SECTION I. EQUIPMENT DESCRIPTION AND DATA - TM-1-1520-238-T-4_285
a. Engine NGB Assemblies
Figure 63. Main Transmission Assembly
Figure 64. IGB Assembly
Figure 65. TGB Assembly
e. Drive Shaft Assembly
Figure 66. Drive Shaft Assembly
63. EQUIPMENT DATA
Table 61. Drive System Controls And Indicators
Table 61. Drive System Controls And Indicators (cont) - TM-1-1520-238-T-4_294
Table 61. Drive System Controls And Indicators (cont) - TM-1-1520-238-T-4_295
Table 61. Drive System Controls And Indicators (cont) - TM-1-1520-238-T-4_296
SECTION II. THEORY OF OPERATION - TM-1-1520-238-T-4_297
(2) Accessory Drive Section
(5) Engine NGB Assembly
(e) An engine NGB cooling fan
(6) Main Transmission Assembly
(e) The accessory lubrication system
(7) Transducers and Switches
Figure 611. Lubrication System
SECTION III. TROUBLESHOOTING PROCEDURES - TM-1-1520-238-T-4_306
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_307
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_308
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_309
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_310
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_311
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_312
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_313
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_314
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_315
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_316
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_317
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_318
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_319
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_320
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_321
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_322
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_323
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_324
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_325
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_326
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_327
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_328
610. DRIVE SYSTEM POWER UP
Figure 614. Pilot ELEC PWR Panel and CPG Circuit Breaker Panel 1
Figure 615. Pilot Forward, Center, and Aft Circuit Breaker Panels
Figure 616. CPG FIRE CONTROL Panel
611. DRIVE SYSTEM POWER DOWN
612. DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK
Figure 618. CPG Caution/Warning Panel
Figure 619. Master Caution/Warning Panel
612. DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_337
612. DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_338
612. DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_339
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK - TM-1-1520-238-T-4_340
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK - TM-1-1520-238-T-4_341
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_342
Figure 620. CPG HOD
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_344
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_345
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_346
Figure 621. Engine NGBs Sight Gage and Typical Differential Pressure Indicator
M58-014-1C SHEET 1 OF 11
M58-014-2C SHEET 2 OF 11
M58-014-3E SHEET 3 OF 11
M58-014-4B SHEET 4 OF 11
M58-014-5C SHEET 5 OF 11
M58-014-6B SHEET 6 OF 11
M58-014-7E SHEET 7 OF 11
M58-014-8D SHEET 8 OF 11
M58-014-9C SHEET 9 OF 11
M58-014-10B SHEET 10 OF 11
M58-014-11A SHEET 11 OF 11
SECTION II. TROUBLESHOOTING METHODS AND CHECKS - TM-1-1520-238-T-4_360
615. HOD NGB 1 READING DISPLAYS 0 LB OIL PRESSURE (cont)
615.1. HOD NGB READING DISPLAYS 50 LB OIL PRESSURE
615.2. HOD NGB 1 READING DISPLAYS >99 LB OIL PRESSURE
615.3. HOD NGB 1 READING DISPLAYS 54 LB OIL PRESSURE OR LESS
616. HOD XMN 1 READING DISPLAYS 0 LB OIL PRESSURE
616.1. HOD XMN 1 READING DISPLAYS 50 LB OIL PRESSURE
616.2. HOD XMN 1 READING DISPLAYS >99 LB OIL PRESSURE
616.3. HOD XMN 1 READING DISPLAYS 49 LB OIL PRESSURE OR LESS
616.3. HOD XMN 1 READING DISPLAYS 49 LB OIL PRESSURE OR LESS (cont)
617. HOD XMN 2 READING DISPLAYS 0 LB OIL PRESSURE
617.1. HOD XMN 2 READING DISPLAYS 50 LB OIL PRESSURE
617.2. HOD XMN 2 READING DISPLAYS >99 LB OIL PRESSURE
617.3. HOD XMN 2 READING DISPLAYS 49 LB OIL PRESSURE OR LESS
617.3. HOD XMN 2 READING DISPLAYS 49 LB OIL PRESSURE OR LESS (cont)
618. HOD NGB 2 READING DISPLAYS 0 LB OIL PRESSURE
618. HOD NGB 2 READING DISPLAYS 0 LB OIL PRESSURE (cont)
618.1. HOD NGB 2 READING DISPLAYS 50 LB OIL PRESSURE
618.2. HOD NGB 2 READING DISPLAYS >99 LB OIL PRESSURE
618.3. HOD NGB 2 READING DISPLAYS 54 LB OIL PRESSURE OR LESS
619. HOD NGB 1 READING DOES NOT DISPLAY AMBIENT TEMPERATURE
619.1. HOD NGB 1 READING DISPLAYS 31 C TEMPERATURE
619.2. HOD NGB 1 READING DISPLAYS HIGH OIL TEMPERATURE
620. HOD XMN 1 READING DOES NOT DISPLAY AMBIENT TEMPERATURE
620.1. HOD XMN 1 READING DISPLAYS 31 C TEMPERATURE
620.2. HOD XMN 1 READING DISPLAYS HIGH OIL TEMPERATURE
621. HOD XMN 2 READING DOES NOT DISPLAY AMBIENT TEMPERATURE
621.1. HOD XMN 2 READING DISPLAYS 31 C TEMPERATURE
621.2. HOD XMN 2 READING DISPLAYS HIGH OIL TEMPERATURE
622. HOD NGB 2 READING DOES NOT DISPLAY AMBIENT TEMPERATURE
622.1. HOD NGB 2 READING DISPLAYS 31 C TEMPERATURE
622.2. HOD NGB 2 READING DISPLAYS HIGH OIL TEMPERATURE
622.3. HOD DISPLAY READS 32 C FOR ALL GEARBOXES
622.3. HOD DISPLAY READS 32 C FOR ALL GEARBOXES (cont)
623. OIL PSI ACC PUMP INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER APPLIED 623 AND ALL POWER PLANTS OFF
624. CHIPS MAIN XMSN INDICATOR LIGHTS
625. OIL HOT MAIN XMSN 1 INDICATOR LIGHTS
626. OIL HOT MAIN XMSN 2 INDICATOR LIGHTS
627. OIL PSI MAIN XMSN 1 INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 627 APPLIED AND ALL POWER PLANTS OFF
628. OIL PSI MAIN XMSN 2 INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 628 APPLIED AND ALL POWER PLANTS OFF
629. TEMP INT INDICATOR LIGHTS
629. TEMP INT INDICATOR LIGHTS (cont)
630. TEMP TR INDICATOR LIGHTS
630. TEMP TR INDICATOR LIGHTS (cont)
631. OIL HOT NOSE GRBX 1 INDICATOR LIGHTS
632. OIL HOT NOSE GRBX 2 INDICATOR LIGHTS
633. OIL PSI NOSE GRBX 1 INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 633 APPLIED AND ALL POWER PLANTS OFF
634. OIL PSI NOSE GRBX 2 INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 634 APPLIED AND ALL POWER PLANTS OFF
635. CHIPS NOSE GRBX 1 INDICATOR LIGHTS
636. CHIPS NOSE GRBX 2 INDICATOR LIGHTS
637. PILOT LOW RPM ROTOR INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 637 APPLIED AND ALL POWER PLANTS OFF
638. CPG LOW RPM ROTOR INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 638 APPLIED AND ALL POWER PLANTS OFF
639. HIGH RPM ROTOR INDICATOR LIGHTS
640. ENG CUT CIRCUIT BREAKER DOES NOT STAY CLOSED
641. VIB GRBX INDICATOR LIGHTS WITH ELECTRICAL POWER APPLIED AND ALL 641 POWER PLANTS OFF
642. OIL PSI ACC PUMP INDICATOR LIGHTS
642. OIL PSI ACC PUMP INDICATOR LIGHTS (cont)
643. VIB MON CIRCUIT BREAKER (CB79) DOES NOT STAY CLOSED
645. HOD NGB 1 READING DISPLAYS 28 LB OR LESS OIL PRESSURE
645. HOD NGB 1 READING DISPLAYS 28 LB OR LESS OIL PRESSURE (cont)
646. HOD NGB 1 READING DISPLAYS LOW OIL PRESSURE
647. OIL PSI NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 647 NGB 1 OIL PRESSURE
647. OIL PSI NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 647 NGB 1 OIL PRESSURE (cont)
648. OIL PSI NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS LOW NGB 1 648 OIL PRESSURE
649. HOD XMN 1 READING DISPLAYS 28 LB OR LESS OIL PRESSURE
649. HOD XMN 1 READING DISPLAYS 28 LB OR LESS OIL PRESSURE (cont)
650. HOD XMN 1 READING DISPLAYS LOW OIL PRESSURE
651. OIL PSI MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 651 XMN 1 OIL PRESSURE
651. OIL PSI MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 651 XMN 1 OIL PRESSURE (cont)
652. OIL PSI MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS LOW XMN 1 652 OIL PRESSURE
653. HOD XMN 2 READING DISPLAYS 28 LB OR LESS OIL PRESSURE
653. HOD XMN 2 READING DISPLAYS 28 LB OR LESS OIL PRESSURE (cont)
654. HOD XMN 2 READING DISPLAYS LOW OIL PRESSURE
655. OIL PSI MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 655 XMN 2 OIL PRESSURE
655. OIL PSI MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 655 XMN 2 OIL PRESSURE (cont)
656. OIL PSI MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS LOW XMN 2 656 OIL PRESSURE
657. HOD NGB 2 READING DISPLAYS 28 LB OR LESS OIL PRESSURE
657. HOD NGB 2 READING DISPLAYS 28 LB OR LESS OIL PRESSURE (cont)
658. HOD NGB 2 READING DISPLAYS LOW OIL PRESSURE
659. OIL PSI NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 659 NGB 2 OIL PRESSURE
659. OIL PSI NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 659 NGB 2 OIL PRESSURE (cont)
660. OIL PSI NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS LOW NGB 2 660 OIL PRESSURE
660.1. HOD NGB 1 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE
660.1. HOD NGB 1 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE (cont)
661. HOD NGB 1 READING DISPLAYS HIGH OIL TEMPERATURE
662. OIL HOT NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 662 NGB 1 OIL TEMPERATURE
662. OIL HOT NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 662 NGB 1 OIL TEMPERATURE (cont)
663. OIL HOT NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS HIGH NGB 1 663 OIL TEMPERATURE
664. HOD XMN 1 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE
664. HOD XMN 1 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE (cont)
665. HOD XMN 1 READING DISPLAYS HIGH OIL TEMPERATURE
666. OIL HOT MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 666 XMN 1 OIL TEMPERATURE
666. OIL HOT MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 666 XMN 1 OIL TEMPERATURE (cont)
667. OIL HOT MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS HIGH XMN 1 667 OIL TEMPERATURE
668. HOD XMN 2 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE
668. HOD XMN 2 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE (cont)
669. HOD XMN2 READING DISPLAYS HIGH OIL TEMPERATURE
670. OIL HOT MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL XMN 2 670 OIL TEMPERATURE
670. OIL HOT MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL XMN 2 670 OIL TEMPERATURE (cont)
671. OIL HOT MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS HIGH XMN 671 2 OIL TEMPERATURE
672. HOD NGB 2 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE
672. HOD NGB 2 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE (cont)
673. HOD NGB 2 READING DISPLAYS HIGH OIL TEMPERATURE
674. OIL HOT NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 674 NGB 2 OIL TEMPERATURE
674. OIL HOT NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 674 NGB 2 OIL TEMPERATURE (cont)
675. OIL HOT NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS HIGH NGB 2 675 OIL TEMPERATURE
676. CHIPS NOSE GRBX 1 INDICATOR LIGHTS
677. CHIPS NOSE GRBX 2 INDICATOR LIGHTS
678. TEMP INT INDICATOR LIGHTS
678. TEMP INT INDICATOR LIGHTS (cont)
679. TEMP TR INDICATOR LIGHTS
679. TEMP TR INDICATOR LIGHTS (cont)
680. NGB OIL LOSS IS INDICATED
681. DRIVE SYSTEM VIBRATION MAINTENANCE OPERATIONAL CHECK
681. DRIVE SYSTEM VIBRATION MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_474
681. DRIVE SYSTEM VIBRATION MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_475
682. LOW RPM ROTOR INDICATORS REMAIN LIGHTED ABOVE 93% NR
683. PILOT LOW RPM ROTOR INDICATOR DOES NOT LIGHT AT 93% OR LESS
684. CPG LOW RPM ROTOR INDICATOR DOES NOT LIGHT AT 93% OR LESS
685. PILOT HIGH RPM ROTOR INDICATOR DOES NOT LIGHT AT 104% NR (ACV)
685.1. PILOT HIGH RPM ROTOR INDICATOR DOES NOT LIGHT AT 108% NR (ACW)
685.2. CPG HIGH RPM ROTOR INDICATOR DOES NOT LIGHT AT 108% NR (ACW)
686. CPG HIGH RPM ROTOR INDICATOR DOES NOT LIGHT AT 104% NR (ACV)
687. VIB GRBX INDICATOR LIGHTS
k. Wiring Information
Figure 11. Typical Terminal Board Connections
SECTION II. TROUBLESHOOTING METHODS AND CHECKS - TM-1-1520-238-T-4_036
19 ROADMAP APPROACH (cont)
SECTION III. GENERAL PROCEDURES SUMMARY
112 DURING TROUBLESHOOTING (cont)
116. ELECTRONIC EQUIPMENT TEST FACILITY (EETF) TESTABLE LRUs
116 ELECTRONIC EQUIPMENT TEST FACILITY (EETF) TESTABLE LRUs (cont)
117. MAINTENANCE HEADSET CONNECTION PROCEDURE
117. MAINTENANCE HEADSET CONNECTION PROCEDURE (cont)
CHAPTER 2 AIRFRAME
CHAPTER 3 LANDING GEAR SYSTEM - TM-1-1520-238-T-4_046
SECTION I. EQUIPMENT DESCRIPTION AND DATA - TM-1-1520-238-T-4_047
Figure 32. MLG and Cross Tube Assembly
Figure 33. Trailing Arm Assembly
(4) Wheel and Tire Assembly
(2) Trailing Arm Assembly
(5) Wheel and Tire Assembly. - TM-1-1520-238-T-4_052
(5) Wheel and Tire Assembly. - TM-1-1520-238-T-4_053
Figure 38. Tail Wheel Lock Actuator System
Figure 39. MLG Brake System
Figure 311. Wheel Brake Assembly and Brake Disc
33. EQUIPMENT DATA
Table 31. Landing Gear System Controls and Indicators
SECTION II. THEORY OF OPERATION - TM-1-1520-238-T-4_059
(b) Trailing Arm Assembly.
(f) Wheel and Tire Assembly.
(d) Wheel and Tire Assembly
(e) Tail Wheel Lock Actuator System
Figure 315. Tail Wheel Lock/Unlock Actuator Electrical Operation
Figure 316. MLG Brake System
(d) Parking Brake System.
SECTION III. TROUBLESHOOTING PROCEDURES - TM-1-1520-238-T-4_067
Figure 318. Directional Control Pedals and Pilot Parking Brake Handle
310. MAIN LANDING GEAR MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_069
310. MAIN LANDING GEAR MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_070
311. TAIL LANDING GEAR MAINTENANCE OPERATIONAL CHECK
Figure 320. Pilot TAIL WHEEL Panel and Tail Wheel Assembly
311. TAIL LANDING GEAR MAINTENANCE OPERATIONAL CHECK (cont)
312. LEFT OR RIGHT MAIN WHEEL ASSEMBLY DOES NOT ROTATE FREELY
313. PILOT BRAKE IS NOT FIRM OR WHEEL ASSEMBLY ROTATES (WITH 313 PRESSURE APPLIED)
314. PARKING BRAKE HANDLE RETRACTS WHEN BRAKES ARE SET TO PARK 314 (BRAKES DO NOT SET)
315. PARKING BRAKE HANDLE DOES NOT RETRACT
316. CPG BRAKE IS NOT FIRM OR WHEEL ASSEMBLY ROTATES (WITH PRESSURE 316 APPLIED)
317. UNEVEN TIRE WEAR EXISTS
318. TAIL WHEEL LOCK ACTUATOR LOCKING PIN DOES NOT ENGAGE LOCKING 318 PLATE OR DOES NOT DISENGAGE FROM LOCKING PLATE
318. TAIL WHEEL LOCK ACTUATOR LOCKING PIN DOES NOT ENGAGE LOCKING 318 PLATE OR DOES NOT DISENGAGE FROM LOCKING PLATE (cont)
319. TAIL WHEEL DOES NOT RETURN TO CENTERLINE
319. TAIL WHEEL DOES NOT RETURN TO CENTERLINE (cont)
TM-1-1520-238-T-4_84
SECTION I. EQUIPMENT DESCRIPTION AND DATA - TM-1-1520-238-T-4_085
42. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS (cont)
Figure 43. Engine AntiIce Subsystem
(2) Engine AntiIce Subsystem
Figure 45. Engine Start Subsystem
(6) Engine Power Controls
Figure 47. Engine Power Controls
Figure 48. Engine Indicator Controllers
43. EQUIPMENT DATA
44. EQUIPMENT CONFIGURATION
46. CONTROLS AND INDICATORS
Table 41. Power Plants Controls and Indicators
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_098
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_099
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_100
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_101
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_102
Table 41. Power Plants Controls And Indicators (cont) - TM-1-1520-238-T-4_103
SECTION II. THEORY OF OPERATION - TM-1-1520-238-T-4_104
Figure 411. Power Plants Functional Block Diagram
Figure 412. Firewall Louver Assembly
(2) Engine Exhaust Subsystem
(3) Engine AntiIce
Figure 416. AntiIce and Start Bleed Valve Operation
(5) Power Quadrants
(c) Engine turbine
SECTION III. TROUBLESHOOTING PROCEDURES - TM-1-1520-238-T-4_112
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_113
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_114
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_115
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_116
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_117
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_118
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_119
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_120
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_121
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_122
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_123
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_124
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_125
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_126
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_127
Table 42. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_128
410. POWER PLANTS POWER UP
Figure 421. Pilot ELEC PWR Panel
Figure 422. Pilot Center and Aft Circuit Breaker Panels
Figure 423. Pilot EXT LT/INTR LT Panel
411. POWER PLANTS POWER DOWN
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1)
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_135
Figure 427. CPG Power Quadrant
Figure 429. Pilot Caution/Warning Panel
Figure 430. Engine 1 Overboard Fuel Drain Locations
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_139
Figure 432. CPG Caution/Warning Panel
Figure 434. Pilot Instrument Panel (Left side)
Figure 435. CPG Instrument Panel (Right Side)
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_143
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_144
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_145
412. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 1) (cont) - TM-1-1520-238-T-4_146
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2)
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_148
Figure 437. Overboard Fuel Drain Locations
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_150
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_151
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_152
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_153
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_154
413. POWER PLANTS MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont) - TM-1-1520-238-T-4_155
M58-018-1B SHEET 1 OF 21
M58-018-2B SHEET 2 OF 21
M58-018-3C SHEET 3 OF 21
M58-018-4D SHEET 4 OF 21
M58-018-5D SHEET 5 OF 21
M58-018-6C SHEET 6 OF 21
M58-018-7C SHEET 7 OF 21
M58-018-8B SHEET 8 OF 21
M58-018-9D SHEET 9 OF 21
TM-1-1520-238-T-4_165
M58-018-11D SHEET 11 OF 21
M58-018-12C SHEET 12 OF 21
M58-018-13B SHEET 13 OF 21
M58-018-14B SHEET 14 OF 21
M58-018-15A SHEET 15 OF 21
M58-018-16B SHEET 16 OF 21
M58-018-17D SHEET 17 OF 21
TM-1-1520-238-T-4_173
M58-018-19B SHEET 19 OF 21
M58-018-20B SHEET 20 OF 21
M58-018-21B SHEET 21 OF 21
415. TORQUE SHARING SYSTEM MAINTENANCE OPERATIONAL CHECK
415. TORQUE SHARING SYSTEM MAINTENANCE OPERATIONAL CHECK (cont
416. TORQUE SHARING SYSTEM WIRING INTERCONNECT DIAGRAM
417. ENGINE 1 TORQUE INDICATION IS LOWER THAN ENGINE 2 TORQUE INDICATION 417 (INDICATIONS NOT WITHIN 5% OF EACH OTHER)
418. ENGINE 2 TORQUE INDICATION IS LOWER THAN ENGINE 1 TORQUE INDICATION 418 (INDICATIONS NOT WITHIN 5% OF EACH OTHER)
419. ENGINE 1 DOES NOT ACCELERATE TO OR REMAIN BETWEEN 23% AND 25% NG 419 IN IGN OVRD
419. ENGINE 1 DOES NOT ACCELERATE TO OR REMAIN BETWEEN 23% AND 25% NG 419 IN IGN OVRD (cont)
420. ENG START CIRCUIT BREAKER DOES NOT STAY CLOSED (WITH ENG START NO 1 420 SWITCH IN START POSITION)
420. ENG START CIRCUIT BREAKER DOES NOT STAY CLOSED (WITH ENG START NO 1 420 SWITCH IN START POSITION) (cont) - TM-1-1520-238-T-4_185
420. ENG START CIRCUIT BREAKER DOES NOT STAY CLOSED (WITH ENG START NO 1 420 SWITCH IN START POSITION) (cont) - TM-1-1520-238-T-4_186
TM-1-1520-238-T-4_187
422. ENG START ENG NO 1 INDICATOR REMAINS LIGHTED ABOVE 52% NG
423. ENGINE 1 OUT INDICATORS ARE LIGHTED WITH ENGINE 1 RUNNING
424. ENGINE 1 NG DOES NOT REMAIN STABLE WITH CKT A SWITCH CLOSED
425. ENGINE 1 NG DOES NOT REMAIN STABLE WITH CKT B SWITCH CLOSED
426. ENGINE 1 NG DOES NOT DECREASE WITH CKT A AND CKT B SWITCHES 426 CLOSED
427. CHIPS ENG 1 INDICATOR IS LIGHTED
428. OIL BYP ENG 1 INDICATOR IS LIGHTED
429. FUEL BYP ENG 1 INDICATOR IS LIGHTED
430. FUEL PSI ENG 1 INDICATOR IS LIGHTED
431. CPG ENGINE NO 1 PWR LEVER CANNOT BE ADVANCED TO LOCKOUT
432. PILOT ENGINE CHOP INDICATOR DOES NOT LIGHT WITH PILOT COLLECTIVE STICK 432 IN CHOP
TM-1-1520-238-T-4_199
434. CPG ENGINE CHOP INDICATOR DOES NOT LIGHT WITH CPG COLLECTIVE STICK 434 IN CHOP
435. CPG COLLECTIVE STICK DOES NOT RESET CHOP FUNCTION
436. ENGINE 2 DOES NOT ACCELERATE TO OR REMAIN BETWEEN 23% AND 25% NG 436 IN IGN OVRD
436. ENGINE 2 DOES NOT ACCELERATE TO OR REMAIN BETWEEN 23% AND 25% NG 436 IN IGN OVRD (cont)
437. ENG START CIRCUIT BREAKER DOES NOT STAY CLOSED (WITH ENG START NO 2 437 SWITCH IN START POSITION)
438. ENG START ENG 2 INDICATOR IS NOT LIGHTED WITH ENGINE 2 STARTED
TM-1-1520-238-T-4_206
440. ENGINE 2 OUT INDICATORS ARE LIGHTED WITH ENGINE 2 RUNNING
TM-1-1520-238-T-4_208
442. ENGINE 2 NG DOES NOT REMAIN STABLE WITH CKT B SWITCH CLOSED
443. ENGINE 2 NG DOES NOT DECREASE WITH CKT A AND B SWITCHES CLOSED
444. CHIPS ENG 2 INDICATOR IS LIGHTED
445. OIL BYP ENG 2 INDICATOR IS LIGHTED
446. FUEL BYP ENG 2 INDICATOR IS LIGHTED
447. FUEL PSI ENG 2 INDICATOR IS LIGHTED
448. CPG ENGINE NO 2 PWR LEVER CANNOT BE ADVANCED TO LOCKOUT
449. ENGINE 1 DOES NOT START
449. ENGINE 1 DOES NOT START (cont)
450. ENGINE 2 DOES NOT START
450. ENGINE 2 DOES NOT START (cont)
451. OIL PSI ENG 1 INDICATOR IS LIGHTED WITH ENGINE OIL PSI X 10 INDICATING 451 MORE THAN 22 PSI
452. OIL PSI ENG 2 INDICATOR IS LIGHTED WITH ENGINE OIL PSI X10 INDICATING 452 MORE THAN 22 PSI
453. EMERG PWR INDICATOR IS NOT LIGHTED WITH CKT B SWITCH SET TO ENG 1
453. EMERG PWR INDICATOR IS NOT LIGHTED WITH CKT B SWITCH SET TO ENG 1 (cont)
454. EMERG PWR INDICATOR IS NOT LIGHTED WITH CKT B SWITCH SET TO ENG 2
454. EMERG PWR INDICATOR IS NOT LIGHTED WITH CKT B SWITCH SET TO ENG 2 (cont)
455. ECS AIRFLOW PRESENT WITH ENG START NO 1 SWITCH AT IGN OVRD
455. ECS AIRFLOW PRESENT WITH ENG START NO 1 SWITCH AT IGN OVRD (cont)
456. ECS AIRFLOW PRESENT WITH ENG START NO 2 SWITCH AT IGN OVRD
456. ECS AIRFLOW PRESENT WITH ENG START NO 2 SWITCH AT IGN OVRD (cont)
457. EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT 457 (ENGINE 1 NP LAGS BEHIND ENGINE 2 NP DURING RECOVERY MANEUVER)
457. EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT 457 (ENGINE 1 NP LAGS BEHIND ENGINE 2 NP DURING RECOVERY MANEUVER) (cont)
458. EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT 458 (ENGINE 2 NP LAGS BEHIND ENGINE 1 NP DURING RECOVERY MANEUVER)
458. EXCESSIVE TORSIONAL VIBRATION AND NR DROOP OCCURS DURING FLIGHT 458 (ENGINE 2 NP LAGS BEHIND ENGINE 1 NP DURING RECOVERY MANEUVER) (cont)
459. ENGINE 1 DOES NOT RESTART CKT A AND CKT B SWITCHES RELEASED
459. ENGINE 1 DOES NOT RESTART CKT A AND CKT B SWITCHES RELEASED (cont)
460. ENGINE 2 DOES NOT RESTART CKT A AND CKT B SWITCHES RELEASED
460. ENGINE 2 DOES NOT RESTART CKT A AND CKT B SWITCHES RELEASED (cont)
461. PILOT POWER QUADRANT PANEL EDGELIGHT DOES NOT LIGHT
462. CPG POWER QUADRANT PANEL EDGELIGHT DOES NOT LIGHT
CHAPTER 5 ROTORS - TM-1-1520-238-T-4_240
SECTION I. EQUIPMENT DESCRIPTION AND DATA - TM-1-1520-238-T-4_241
Figure 51. Rotor System
Figure 52. Main Rotor Head Assembly
Figure 53. Main Rotor Blade Assembly
Figure 54. Tail Rotor Assembly
53. EQUIPMENT DATA
Table 51. Rotor System Controls And Indicators
Table 51. Rotor System Controls And Indicators (cont)
SECTION II. THEORY OF OPERATION - TM-1-1520-238-T-4_249
Figure 58. Rotor System Block Diagram
SECTION III. TROUBLESHOOTING PROCEDURES - TM-1-1520-238-T-4_252
518. RECOMMENDED STEPS PRIOR TO AIRCRAFT OPERATION
519. GROUND TRACK AND ADJUSTMENT USING AVA EQUIPMENT
b. PERFORM GROUND TRACK (GNDTRK) MEASUREMENT
c. ADJUSTMENT OF PITCH LINKS
520. INITIAL CHECK AND ADJUSTMENT USING AVA EQUIPMENT
b. PERFORM INITIAL MEASUREMENT
d. COMPARING MOVES BETWEEN FLIGHTS
e. WEIGHT ADJUSTMENT
c. Inspection
521. FLIGHT CHECK AND ADJUSTMENT USING AVA EQUIPMENT
521. FLIGHT CHECK AND ADJUSTMENT USING AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_263
521. FLIGHT CHECK AND ADJUSTMENT USING AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_264
Figure 519. AVA Track Trend
Figure 520. Polar Chart
Figure 521. AH64 Vertical Effect for TAB Changes
Figure 523. AH64 Lateral Effect for Weight Changes
CUSTOM SOLUTIONS
Utilizing the MAXIMUM # OF ADJUSTMENTS
Figure 524. AVA Vibration Trend
Figure 525. Before and After Vibration Levels on AVA
d. TRIM TAB ADJUSTMENTS
522. MAIN ROTOR TRACK AND BALANCE TROUBLESHOOTING USING 522 AVA EQUIPMENT
523. TAIL ROTOR BALANCE MAINTENANCE OPERATIONAL CHECK USING 523 AVA EQUIPMENT
523. TAIL ROTOR BALANCE MAINTENANCE OPERATIONAL CHECK USING 523 AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_276
523. TAIL ROTOR BALANCE MAINTENANCE OPERATIONAL CHECK USING 523 AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_277
523. TAIL ROTOR BALANCE MAINTENANCE OPERATIONAL CHECK USING 523 AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_278
524. ISOLATING/MONITORING OTHER VIBRATIONS USING AVA EQUIPMENT
Spectrums
524. ISOLATING/MONITORING OTHER VIBRATIONS USING AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_281
b. Install accelerometer
524. ISOLATING/MONITORING OTHER VIBRATIONS USING AVA EQUIPMENT (cont) - TM-1-1520-238-T-4_283
CHAPTER 6 DRIVE SYSTEM
SECTION I. EQUIPMENT DESCRIPTION AND DATA - TM-1-1520-238-T-4_285
a. Engine NGB Assemblies
Figure 63. Main Transmission Assembly
Figure 64. IGB Assembly
Figure 65. TGB Assembly
e. Drive Shaft Assembly
Figure 66. Drive Shaft Assembly
63. EQUIPMENT DATA
Table 61. Drive System Controls And Indicators
Table 61. Drive System Controls And Indicators (cont) - TM-1-1520-238-T-4_294
Table 61. Drive System Controls And Indicators (cont) - TM-1-1520-238-T-4_295
Table 61. Drive System Controls And Indicators (cont) - TM-1-1520-238-T-4_296
SECTION II. THEORY OF OPERATION - TM-1-1520-238-T-4_297
(2) Accessory Drive Section
(5) Engine NGB Assembly
(e) An engine NGB cooling fan
(6) Main Transmission Assembly
(e) The accessory lubrication system
(7) Transducers and Switches
Figure 611. Lubrication System
SECTION III. TROUBLESHOOTING PROCEDURES - TM-1-1520-238-T-4_306
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_307
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_308
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_309
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_310
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_311
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_312
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_313
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_314
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_315
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_316
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_317
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_318
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_319
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_320
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_321
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_322
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_323
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_324
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_325
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_326
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_327
Table 62. Electrical Component Location and Configuration (ECLC) Index Listing (cont) - TM-1-1520-238-T-4_328
610. DRIVE SYSTEM POWER UP
Figure 614. Pilot ELEC PWR Panel and CPG Circuit Breaker Panel 1
Figure 615. Pilot Forward, Center, and Aft Circuit Breaker Panels
Figure 616. CPG FIRE CONTROL Panel
611. DRIVE SYSTEM POWER DOWN
612. DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK
Figure 618. CPG Caution/Warning Panel
Figure 619. Master Caution/Warning Panel
612. DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_337
612. DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_338
612. DRIVE SYSTEM INDICATORS MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_339
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK - TM-1-1520-238-T-4_340
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK - TM-1-1520-238-T-4_341
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_342
Figure 620. CPG HOD
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_344
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_345
613. DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_346
Figure 621. Engine NGBs Sight Gage and Typical Differential Pressure Indicator
M58-014-1C SHEET 1 OF 11
M58-014-2C SHEET 2 OF 11
M58-014-3E SHEET 3 OF 11
M58-014-4B SHEET 4 OF 11
M58-014-5C SHEET 5 OF 11
M58-014-6B SHEET 6 OF 11
M58-014-7E SHEET 7 OF 11
M58-014-8D SHEET 8 OF 11
M58-014-9C SHEET 9 OF 11
M58-014-10B SHEET 10 OF 11
M58-014-11A SHEET 11 OF 11
SECTION II. TROUBLESHOOTING METHODS AND CHECKS - TM-1-1520-238-T-4_360
615. HOD NGB 1 READING DISPLAYS 0 LB OIL PRESSURE (cont)
615.1. HOD NGB READING DISPLAYS 50 LB OIL PRESSURE
615.2. HOD NGB 1 READING DISPLAYS >99 LB OIL PRESSURE
615.3. HOD NGB 1 READING DISPLAYS 54 LB OIL PRESSURE OR LESS
616. HOD XMN 1 READING DISPLAYS 0 LB OIL PRESSURE
616.1. HOD XMN 1 READING DISPLAYS 50 LB OIL PRESSURE
616.2. HOD XMN 1 READING DISPLAYS >99 LB OIL PRESSURE
616.3. HOD XMN 1 READING DISPLAYS 49 LB OIL PRESSURE OR LESS
616.3. HOD XMN 1 READING DISPLAYS 49 LB OIL PRESSURE OR LESS (cont)
617. HOD XMN 2 READING DISPLAYS 0 LB OIL PRESSURE
617.1. HOD XMN 2 READING DISPLAYS 50 LB OIL PRESSURE
617.2. HOD XMN 2 READING DISPLAYS >99 LB OIL PRESSURE
617.3. HOD XMN 2 READING DISPLAYS 49 LB OIL PRESSURE OR LESS
617.3. HOD XMN 2 READING DISPLAYS 49 LB OIL PRESSURE OR LESS (cont)
618. HOD NGB 2 READING DISPLAYS 0 LB OIL PRESSURE
618. HOD NGB 2 READING DISPLAYS 0 LB OIL PRESSURE (cont)
618.1. HOD NGB 2 READING DISPLAYS 50 LB OIL PRESSURE
618.2. HOD NGB 2 READING DISPLAYS >99 LB OIL PRESSURE
618.3. HOD NGB 2 READING DISPLAYS 54 LB OIL PRESSURE OR LESS
619. HOD NGB 1 READING DOES NOT DISPLAY AMBIENT TEMPERATURE
619.1. HOD NGB 1 READING DISPLAYS 31 C TEMPERATURE
619.2. HOD NGB 1 READING DISPLAYS HIGH OIL TEMPERATURE
620. HOD XMN 1 READING DOES NOT DISPLAY AMBIENT TEMPERATURE
620.1. HOD XMN 1 READING DISPLAYS 31 C TEMPERATURE
620.2. HOD XMN 1 READING DISPLAYS HIGH OIL TEMPERATURE
621. HOD XMN 2 READING DOES NOT DISPLAY AMBIENT TEMPERATURE
621.1. HOD XMN 2 READING DISPLAYS 31 C TEMPERATURE
621.2. HOD XMN 2 READING DISPLAYS HIGH OIL TEMPERATURE
622. HOD NGB 2 READING DOES NOT DISPLAY AMBIENT TEMPERATURE
622.1. HOD NGB 2 READING DISPLAYS 31 C TEMPERATURE
622.2. HOD NGB 2 READING DISPLAYS HIGH OIL TEMPERATURE
622.3. HOD DISPLAY READS 32 C FOR ALL GEARBOXES
622.3. HOD DISPLAY READS 32 C FOR ALL GEARBOXES (cont)
623. OIL PSI ACC PUMP INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER APPLIED 623 AND ALL POWER PLANTS OFF
624. CHIPS MAIN XMSN INDICATOR LIGHTS
625. OIL HOT MAIN XMSN 1 INDICATOR LIGHTS
626. OIL HOT MAIN XMSN 2 INDICATOR LIGHTS
627. OIL PSI MAIN XMSN 1 INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 627 APPLIED AND ALL POWER PLANTS OFF
628. OIL PSI MAIN XMSN 2 INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 628 APPLIED AND ALL POWER PLANTS OFF
629. TEMP INT INDICATOR LIGHTS
629. TEMP INT INDICATOR LIGHTS (cont)
630. TEMP TR INDICATOR LIGHTS
630. TEMP TR INDICATOR LIGHTS (cont)
631. OIL HOT NOSE GRBX 1 INDICATOR LIGHTS
632. OIL HOT NOSE GRBX 2 INDICATOR LIGHTS
633. OIL PSI NOSE GRBX 1 INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 633 APPLIED AND ALL POWER PLANTS OFF
634. OIL PSI NOSE GRBX 2 INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 634 APPLIED AND ALL POWER PLANTS OFF
635. CHIPS NOSE GRBX 1 INDICATOR LIGHTS
636. CHIPS NOSE GRBX 2 INDICATOR LIGHTS
637. PILOT LOW RPM ROTOR INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 637 APPLIED AND ALL POWER PLANTS OFF
638. CPG LOW RPM ROTOR INDICATOR DOES NOT LIGHT WITH ELECTRICAL POWER 638 APPLIED AND ALL POWER PLANTS OFF
639. HIGH RPM ROTOR INDICATOR LIGHTS
640. ENG CUT CIRCUIT BREAKER DOES NOT STAY CLOSED
641. VIB GRBX INDICATOR LIGHTS WITH ELECTRICAL POWER APPLIED AND ALL 641 POWER PLANTS OFF
642. OIL PSI ACC PUMP INDICATOR LIGHTS
642. OIL PSI ACC PUMP INDICATOR LIGHTS (cont)
643. VIB MON CIRCUIT BREAKER (CB79) DOES NOT STAY CLOSED
645. HOD NGB 1 READING DISPLAYS 28 LB OR LESS OIL PRESSURE
645. HOD NGB 1 READING DISPLAYS 28 LB OR LESS OIL PRESSURE (cont)
646. HOD NGB 1 READING DISPLAYS LOW OIL PRESSURE
647. OIL PSI NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 647 NGB 1 OIL PRESSURE
647. OIL PSI NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 647 NGB 1 OIL PRESSURE (cont)
648. OIL PSI NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS LOW NGB 1 648 OIL PRESSURE
649. HOD XMN 1 READING DISPLAYS 28 LB OR LESS OIL PRESSURE
649. HOD XMN 1 READING DISPLAYS 28 LB OR LESS OIL PRESSURE (cont)
650. HOD XMN 1 READING DISPLAYS LOW OIL PRESSURE
651. OIL PSI MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 651 XMN 1 OIL PRESSURE
651. OIL PSI MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 651 XMN 1 OIL PRESSURE (cont)
652. OIL PSI MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS LOW XMN 1 652 OIL PRESSURE
653. HOD XMN 2 READING DISPLAYS 28 LB OR LESS OIL PRESSURE
653. HOD XMN 2 READING DISPLAYS 28 LB OR LESS OIL PRESSURE (cont)
654. HOD XMN 2 READING DISPLAYS LOW OIL PRESSURE
655. OIL PSI MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 655 XMN 2 OIL PRESSURE
655. OIL PSI MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 655 XMN 2 OIL PRESSURE (cont)
656. OIL PSI MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS LOW XMN 2 656 OIL PRESSURE
657. HOD NGB 2 READING DISPLAYS 28 LB OR LESS OIL PRESSURE
657. HOD NGB 2 READING DISPLAYS 28 LB OR LESS OIL PRESSURE (cont)
658. HOD NGB 2 READING DISPLAYS LOW OIL PRESSURE
659. OIL PSI NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 659 NGB 2 OIL PRESSURE
659. OIL PSI NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 659 NGB 2 OIL PRESSURE (cont)
660. OIL PSI NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS LOW NGB 2 660 OIL PRESSURE
660.1. HOD NGB 1 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE
660.1. HOD NGB 1 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE (cont)
661. HOD NGB 1 READING DISPLAYS HIGH OIL TEMPERATURE
662. OIL HOT NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 662 NGB 1 OIL TEMPERATURE
662. OIL HOT NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 662 NGB 1 OIL TEMPERATURE (cont)
663. OIL HOT NOSE GRBX 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS HIGH NGB 1 663 OIL TEMPERATURE
664. HOD XMN 1 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE
664. HOD XMN 1 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE (cont)
665. HOD XMN 1 READING DISPLAYS HIGH OIL TEMPERATURE
666. OIL HOT MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 666 XMN 1 OIL TEMPERATURE
666. OIL HOT MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 666 XMN 1 OIL TEMPERATURE (cont)
667. OIL HOT MAIN XMSN 1 INDICATOR IS LIGHTED WHEN HOD DISPLAYS HIGH XMN 1 667 OIL TEMPERATURE
668. HOD XMN 2 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE
668. HOD XMN 2 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE (cont)
669. HOD XMN2 READING DISPLAYS HIGH OIL TEMPERATURE
670. OIL HOT MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL XMN 2 670 OIL TEMPERATURE
670. OIL HOT MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL XMN 2 670 OIL TEMPERATURE (cont)
671. OIL HOT MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS HIGH XMN 671 2 OIL TEMPERATURE
672. HOD NGB 2 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE
672. HOD NGB 2 READING DISPLAYS 140 C OR HIGHER OIL TEMPERATURE (cont)
673. HOD NGB 2 READING DISPLAYS HIGH OIL TEMPERATURE
674. OIL HOT NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 674 NGB 2 OIL TEMPERATURE
674. OIL HOT NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL 674 NGB 2 OIL TEMPERATURE (cont)
675. OIL HOT NOSE GRBX 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS HIGH NGB 2 675 OIL TEMPERATURE
676. CHIPS NOSE GRBX 1 INDICATOR LIGHTS
677. CHIPS NOSE GRBX 2 INDICATOR LIGHTS
678. TEMP INT INDICATOR LIGHTS
678. TEMP INT INDICATOR LIGHTS (cont)
679. TEMP TR INDICATOR LIGHTS
679. TEMP TR INDICATOR LIGHTS (cont)
680. NGB OIL LOSS IS INDICATED
681. DRIVE SYSTEM VIBRATION MAINTENANCE OPERATIONAL CHECK
681. DRIVE SYSTEM VIBRATION MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_474
681. DRIVE SYSTEM VIBRATION MAINTENANCE OPERATIONAL CHECK (cont) - TM-1-1520-238-T-4_475
682. LOW RPM ROTOR INDICATORS REMAIN LIGHTED ABOVE 93% NR
683. PILOT LOW RPM ROTOR INDICATOR DOES NOT LIGHT AT 93% OR LESS
684. CPG LOW RPM ROTOR INDICATOR DOES NOT LIGHT AT 93% OR LESS
685. PILOT HIGH RPM ROTOR INDICATOR DOES NOT LIGHT AT 104% NR (ACV)
685.1. PILOT HIGH RPM ROTOR INDICATOR DOES NOT LIGHT AT 108% NR (ACW)
685.2. CPG HIGH RPM ROTOR INDICATOR DOES NOT LIGHT AT 108% NR (ACW)
686. CPG HIGH RPM ROTOR INDICATOR DOES NOT LIGHT AT 104% NR (ACV)
687. VIB GRBX INDICATOR LIGHTS
