T-45C TS, ADV & IUT ENG-22
CNI System Malfunctions
Examples of hazards:
*
Lost comm procedures will apply
*
Possible traffic conflict
*
ASR/PAR approach will be impossible
*
Must rely on visual communications
*
Must maintain VFR conditions if possible
B. Intercom system (ICS) failure 1.8.1.9.3.1
1. Indications
a. Loss of communications between cockpits, and
cockpits and plane captain
b. Loss of all communications, navigation, and
intercom audio indicate an ICS malfunction
NOTE: Each cockpit has one COMM Control Panel
with normal and alternate circuitry. If the normal
amp fails, switching to ALT should resolve the
problem. However, the alternate amplifier operates
at a fixed volume level.
2. Verifications
a. Check switch setting on COMM control panel to ALT
b. Check helmet/mask connection
c. Check that BATT switches on the power
management panel are on
d. No side tone when keyed in COLD mic
e. No side tone in HOT mic
f. Other cockpit experiences same problem
3. Effects on flight safety: normal air-to-air and air-to-
ground communications will be impossible
Original (9-98)
Page 22-5
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