Table 2–1. Master Failure Symptom Index (cont)

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