TM 55-1510-219-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
d. #1 and #2 ice vane switches -RETRACT.
e. Torquemeters - Monitor for an increase
in torque.
f. #1 and #2 ice vane annunciator lights
(green) - Check extinguished.
g. Ice vane control circuit breakers (2) -
Pull.
h. Airspeed - 160 KIAS.
i. #1 and #2 ice vane switches -EXTEND.
j. #1 and #2 vane fail annunciator lights
(yellow) - Check illuminated within 10 to
18
seconds
after
ice
vane
switch
actuation.
k. Manual engine ice vane controls - Pull to
extend. Pulling force required to extend
the ice vanes should not be excessive.
l. #1 and #2 vane fail annunciator lights
(yellow) - Check extinguished.
m. #I and #2 ice vane extended annunciator
lights (green) - Check illuminated.
n. #1 and #2 ice vane switches -RETRACT.
o. #1 and #2 vane fail annunciator lights
(yellow) - Check illuminated within 10 to
18
seconds
after
ice
vane
switch
actuation.
2-45
