TM 1-1510-225MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(17) PROP SYN switch - As
required.
(18) Electrical equipment - As
required.
*(19) Propeller unfeathering -
Check as follows with pro-
peller in the feathered posi-
tion with the gas generator
running in LOW IDLE:
a POWER lever - IDLE.
PROP lever - Move out of
FEATHER detent to full
forward. Propeller RPM
must reach 1000 RPM in
30 seconds or less.
(i) Repeat step h for other engine if
required
*11. Landing gear warning horn - Check as
C24-26
follows:
(a) POWER levers - Retard slowly,
individually, until landing gear
warning horn first sounds.
* (b)
Turbine tachometers - Read N1,
tachometers on first hearing
landing gear warning horn.
Verify that the landing gear
warning horn sounds when
POWER levers are retarded to 79
to 82% N1.
( c ) F l a p s -
E x t e n d b e y o n d
APPROACH position. Verify
that the landing gear warning
h o r n s o u n d s r e g a r d l e s s o f
POWER lever position.
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