9395. AUDIO WARNING SYSTEM MAINTENANCE OPERATIONAL CHECK (cont)
BATT / EXT PWR
Pilot ELEC PWR Panel
d. On pilot master caution/warning panel
(fig. 9242), press ENGINE 1 OUT indicator.
Check that audio warning is silenced.
If audio warning is still heard, go to paragraph 9399.
ENGINE 1 OUT
ENGINE 2 OUT
PRESS TO TEST
Master Caution/Warning Panel
e. On pilot power quadrant (fig. 9243), set
RTR BK switch to OFF.
2. Start No. 1 and No. 2 engines (TM 1-1520-238-CL).
a. On pilot power quadrant, set engine
NO 1 PWR lever to FLY. Check that audio
warning is heard in pilot and CPG headsets.
If audio warning is not heard in both pilot and CPG
headsets, replace engine out warning unit
If audio warning is heard in only one headset, refer to
TM 11-1520-238-23-2 to troubleshoot integrated
audio warning system.
b. On pilot master caution/warning panel,
check that ENGINE 1 OUT indicator is
lighted and flashing.
If ENGINE 1 OUT indicator is not lighted and flashing,
replace lamp (TM 1-1520-238-23). If lamp still does
not light, go to paragraph 9400.