TM 55-1510-219-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
23. AC external power - Connect as required.
Check
that
the
EXT
ACPWR
ON
annunciator light on the mission control
panel is illuminated if AC external power is
being used.
*24. Annunciator panels - Test as fol-
D1-4
lows:
a. Check illumination of the MASTER
CAUTION, MASTER WARNING, #1
FUEL PRESS, #2 FUEL PRESS, L BL
AIR FAIL, R BL AIR FAIL, INST AC
warning lights, #1 DC GEN, #2 DC GEN,
#1 INVERTER, #2 INVERTER, #1 NO
FUEL XFR, #2 NO FUEL XFR, and
CABIN
DOOR
(if
open),
caution/advisory lights.
b. Annunciator test switch - Press and hold.
Check that all lights in both annunciator
panels, FIRE PULL handle lights,
marker
beacon
lights,
MASTER
CAUTION, and MASTER WARNING
lights are illuminated. Release switch
and check that all lights except those in
step (a) are extinguished.
c. Master caution and master warning lights
- Press and release. Both lights should
extinguish.
*25. Stall and gear warning system -
C18,36,
Check as follows:
37
2-13
