TM 1–1520–238–T–2
2–39
Table 2–1.
Master Failure Symptom Index (cont)
Failure Symptom
MOC
Reference
CONSTANT TONE IN HEADSET DOES NOT
CHANGE TO PERIODIC TONE INDICATING
CIPHER MODE (PILOT VHF AM–FM
RECEIVER/TRANSMITTER: MODE SWITCH
SET TO TR)
TM 11–1520–238–23–2
TSEC/KY–28
COMMUNICATIONS
SECURITY
EQUIPMENT
COOLING FAN TO RADAR JAMMER
RECEIVER/TRANSMITTER IS NOT HEARD
(RDRCM CONTROL UNIT: OFF/STBY/OPR
SWITCH SET TO OPR)
TM 11–1520–238–23–2
RADAR JAMMER
SYSTEM
AN/ALQ–136
CORRECT REMOTE TRANSMITTER SELECTOR
PANEL INDICATOR DOES NOT LIGHT (PILOT
CYCLIC STICK: REMOTE TRANSMITTER
SELECTOR SWITCH CYCLED)
TM 11–1520–238–23–2
VHF AM–FM RADIO
SET
CPG AIRSPEED INDICATOR EDGE– LIGHTING
DOES NOT LIGHT (CPG INTR LT PANEL:
INST CONTROL ROTATED TO BRT)
TM 1–1520–238–T–5
FLIGHT
INSTRUMENTS
CPG AIRSPEED INDICATOR, VSI AND
BAROMETRIC ALTIMETER EDGE– LIGHTS
DO NOT LIGHT (CPG INTR LT PANEL: INST
CONTROL ROTATED TO BRT)
TM 1–1520–238–T–5
FLIGHT
INSTRUMENTS
CPG ARM/SAFE INDICATOR IS NOT LIGHTED
(EXTERNAL ELECTRICAL POWER APPLIED)
TM 1–1520–238–T–6
CPG CAUTION AND
WARNING SYSTEM
CPG BAROMETRIC ALTIMETER EDGE–
LIGHTING DOES NOT LIGHT (CPG INTR LT
PANEL: INST CONTROL ROTATED TO BRT)
TM 1–1520–238–T–5
FLIGHT
INSTRUMENTS
CPG BAROMETRIC ALTIMETER PRESSURE
READING IS NOT WITHIN 70 FEET OF
AMBIENT PRESSURE
TM 1–1520–238–T–5
FLIGHT
INSTRUMENTS
CPG BRU TARGET DOES NOT LIGHT (CPG
FCP: BRSIT IHADSS SWITCH SET TO
IHADSS AND CPG INTR LT PANEL: INST
CONTROL ROTATED TO BRT)
TM 9–1270–221–23
IHADSS
