Table 21. Master Failure Symptom Index (cont)

Table 21. Master Failure Symptom Index (cont) - TM-1-1520-238-T-2_191

Table 21. Master Failure Symptom Index (cont) - TM-1-1520-238-T-2_193

TM-1-1520-238-T-2 Army Model AH-64 Helicopter (NSN
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TM 1–1520–238–T–2 2–136 Table 2–1. Master Failure Symptom Index (cont) Failure Symptom MOC Reference PILOT ENG OIL INDICATOR VERTICAL DISPLAY SCALES DO NOT INDICATE 0 PRESSURE (PILOT DIM/TEST PANEL: DIM CONTROL ROTATED TO MIDPOSITION) TM 1–1520–238–T–5 ENGINE INSTRUMENTS PILOT ENG OIL INDICATOR VERTICAL DISPLAY SCALES HAVE EVERY OTHER LAMP NOT LIGHTED (PILOT DIM/TEST PANEL: DGT OFF/NORM/TST SWITCH HELD AT TST) TM 1–1520–238–T–5 ENGINE INSTRUMENTS PILOT ENG OIL, TGT, TORQUE, FUEL QUANTITY, ENG–RTR RPM% AND N_G RPM% VERTICAL SCALE INDICATORS DO NOT DIM (PILOT DIM/TEST PANEL: PHOTOCELL COVERED) TM 1–1520–238–T–5 ENGINE INSTRUMENTS PILOT ENG OIL, TGT, TORQUE, FUEL QUANTITY, ENG–RTR RPM% AND N_G RPM% VERTICAL SCALE INDICATORS DO NOT BRIGHTEN (PILOT DIM/TEST PANEL: LIGHT SHINING ON PHOTOCELL) TM 1–1520–238–T–5 ENGINE INSTRUMENTS PILOT ENG OIL, TGT, TORQUE, FUEL QUANTITY, ENG–RTR RPM%, AND N_G RPM% VERTICAL SCALE INDICATORS DO NOT DIM (PILOT DIM/TEST PANEL: MANUAL DIM CONTROL FULLY ROTATED COUNTERCLOCKWISE) TM 1–1520–238–T–5 ENGINE INSTRUMENTS PILOT ENG OIL, TGT, TORQUE, FUEL QUANTITY, ENG–RTR RPM%, AND N_G RPM% VERTICAL SCALE INDICATORS DO NOT BRIGHTEN (PILOT DIM/TEST PANEL: MANUAL DIM CONTROL FULLY ROTATED CLOCKWISE) TM 1–1520–238–T–5 ENGINE INSTRUMENTS PILOT ENG–RTR RPM% INDICATOR DOES NOT INDICATE ENGINE 1 N_P (ENGINES 1 AND 2 OPERATING) TM 1–1520–238–T–5 ENGINE INSTRUMENTS PILOT ENG–RTR RPM% INDICATOR DOES NOT INDICATE ENGINE 2 N_P (ENGINES 1 AND 2 OPERATING) TM 1–1520–238–T–5 ENGINE INSTRUMENTS

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