TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
LOW SPEED SYSTEMS CHECK (CONT)
(b)
Slowly retard each POWER lever
individually.
(c)
Respective IGN ON annunciator
light - Illuminates at 13 to 19%
torque.
(d)
Power - Establishes cruise power
with autoignition armed.
(e)
CONDITION lever (engine to be
tested) - Rapidly retard to IDLE
CUTOFF for 3 seconds, then return
to LOW IDLE. Observe that engine
relight occurs 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 substep e for opposite
engine if required.
*11.
Propeller feathering - Check each engine
as follows:
F14, 15
(a)
Airspeed - 120 KIAS.
(b)
POWER
lever
(engine
to
be
feathered) - IDLE.
(c)
PROP
lever
(engine
to
be
feathered) - HIGH RPM.
(d)
CONDITION lever (engine to be
feathered) - IDLE CUTOFF. Allow
N1 RPM to decay below 20%.
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