TM 55-1510-221-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
BEFORE STARTING ENGINES (CONT)
d.
Cabin lights switch As Required.
18. Pilot's static air source NORMAL.
19. Pilot's and copilot's audio control panels As required.
20. Ice vane pull handles In.
21. AC and DC GPU As required.
22. External power advisory annunclator
C12
lights As required. (Aircraft EXTERNAL
POWER and mission EXT DC PWR ON
annunciator lights illuminated.)
*23. DC power Check (24 VDC minimum for
battery starts, 28 VDC maximum for GPU
starts)
*24. Annunciator panels Test as follows:
D1-4
a.
MASTER
CAUTION,
MASTER
WARNING, #1 FUEL PRESS, #2 FUEL
PRESS, GEAR DN, L BL AIR FAIL, R
BL AIR FAIL, and INST AC warning
lights, and #1 DC GEN, #2 DC GEN, #1
NO FUEL XFR, #2 NO FUEL XFR, #1
INVERTER,
#2
INVERTER,
CABIN
DOOR (if open), and REV NOT READY
caution/advisory
lights
Check
illuminated.
b.
ANNUNCIATOR TEST switch
Press and hold. Check that the
annunciator panels,
2-12
