TM 55-1510-220-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
LOW SPEED SYSTEMS CHECK (CONT)
to LOW IDLE. Engine relight should occur within 3 to 5 seconds. Monitor engine acceleration and
TGT rise. If relight does not occur within limits, or acceleration or TGT do not appear normal, abort the
start. Restart engine using normal procedures.
f.
Repeat procedure for opposite engine.
*10. Propeller feathering - Check each engine as follows:
F14,15
a.
Airspeed - 120 KIAS.
b.
Power lever (engine to be feathered) - IDLE.
c.
Propeller lever (engine to be feathered) - Set 2000 RPM.
d.
Condition lever (engine to be feathered) - IDLE CUTOFF.
e.
Propeller lever (engine to be feathered) - FEATHER. Time to feather must not exceed 10 seconds
from windmilling at 2000 RPM to no rotation in the feathered position.
f.
Engine cleanup.
(1) Condition lever - FUEL CUTOFF.
(2) Engine autoignition switch - OFF.
(3) Autofeather switch - OFF.
2-50
