TM 1-1520-238-MTF
Change 2
2-84.2
PROCEDURE
TROUBLESHOOTING
REFERENCE
FLIGHT CHECKS (CONT)
CAUTION
Do not exceed 100% torque.
d. If 100% torque is not achieved, do
the following:
(1) Increase collective pitch while
maintaining approximately 60%
torque on non-test engine until
100% torque is observed on the
test engine.
(2) Maintain a constant pressure
altitude by adjusting forward
airspeed as necessary.
e. Wait 30 seconds and record
airspeed (KIAS), NG (%), TGT (C),
torque (%), OAT (C), and pressure
altitude (ft).
f. PWR lever, non-test engine – FLY.
g. If required, repeat steps a. thru f.
for the other engine.
h. To establish the engine torque
factor (ETF) and aircraft torque
factor (ATF), refer to TM
55-2840-248-23.
