TM 1-1520-238-MTF
2-84.3/(2-84.4 blank) Change 1
PROCEDURE
TROUBLESHOOTING
REFERENCE
FLIGHT CHECKS (CONT)
*8.2. TGT Limiter/Contingency Power Check
– Perform as follows:
a. Airspeed – 110 KIAS.
CAUTION
At higher TGT values placing the ENG IN-
LET switch ON could cause excessive
Nr/Np droop.
b. If required ANTI ICE panel/ENG
INLET switch – ON. Verify TGT
increase, ENG 1 and ENG 2
advisory lights illuminate and ENG
1 and ENG 2 ANTI ICE
caution/warning lights extinguish
after 90 seconds.
c. Collective – Increase approximately
80-85% torque on both engines,
ambient conditions permitting.
CAUTION
Do not exceed 110% single engine or
200% combined engine torques.
d. PWR lever, non test engine –
Retard as required to establish a
torque split of at least 10% between
engines, but not less than 60% on
the non-test engine.
