TM 55-1510-221-MTF
d.
Defective stall warning computer
C36. Both inverters inoperative.
a.
Defective wiring in inverter system
C37. One inverter inoperative.
a.
Tripped inverter circuit breaker (on DC
power distribution panel beneath floor).
b.
Defective inverter.
c.
Loose or corroded ground connection.
d.
Defective wiring to inverter.
C38. Battery charge annunciator light inoperative.
a.
Defective light bulb
b.
Connections on battery shunt loose or cor-
roded
c.
Defective battery charge monitor module
C39. One portion of interior lighting or lighting con-
trol system inoperative.
a.
Defective light circuit board or wheat lights.
b.
Defective components in overhead control
panel
c.
Defective power supply
C40. Fuel crossfeed valve inoperative or FUEL
PRESS annunciator light remains illuminated.
a.
Defective standby fuel pump.
b.
Defective crossfeed valve
C41. Standby fuel pump inoperative.
a.
Defective standby pump.
b.
Defective switch in fuel management panel.
C42. Pneumatic surface or antenna deice system inoperative.
a.
Defective surface deice time delay module
b.
Defective deice distributor valve.
3-13
