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TM 55-1510-218-MTF
TROUBLESHOOTING
PROCEDURE
REFERENCE
LOW SPEED SYSTEMS CHECK (CONT)
(15) Cabin air mode selector
switch (C-12F after serial
number 86-60084) - As re-
quired.
switch
(16) Autoignition
ARM.
i. Propeller - Unfeather.
j. Propellers - Synchronized.
k. Power - As required.
I. Repeat procedure for other en-
gine.
C-29-32
* 12. Landing gear warning horn - Check
as follows:
a. Power levers - Retard slowly,
individually, until landing gear
warning horn first sounds.
*b. Turbine tachometers - Read N1
on first hearing landing gear
warning horn. The landing gear
warning horn must sound when
power Iever(s) are retarded be-
low 79 to 81% N1 and airspeed
is below 140 KlAS or when the
flaps are extended beyond the
approach position (40%) re-
gardless of power Iever(s) posi-
tion.
c. Power Iever(s) - Advance past
79 to 81% N1 . Landing gear
warning horn should be armed
again.
C13-36
*13. Landing gear normal operation -
Check as follows:
2-66
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