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 TM 55-1510-218-MTF
TROUBLESHOOTING
PROCEDURE
REFERENCE
c. Torquemeters - Monitor for a 7
to 16% drop in torque with ice
vanes extended.
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 extin-
guished.
g. ICC vane control circuit break-
ers (2) - Pull.
h. Airspeed - 160 KIAS.
i. #1 and #2 ice vane switches -
EXTEND.
j. #1 and #2 vane fail annuncia-
tor lights (yellow) - Check illu-
minated within 10 to 18 sec-
onds after ice vane switch
actuation.
k. Manual engine ice vane con-
trols - Pull to extend. Pulling
force required to extend the ice
vanes should not be excessive.
I. #1 and #2 vane fail annuncia-
tor lights (yellow) - Check ex-
tinguished.
m. #1 and #2 ice vane extended
annunciator lights (green) -
Check illuminated.
2-55
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