TM 1-1520-238-MTF
2-78
PROCEDURE
TROUBLESHOOTING
REFERENCE
FLIGHT CHECKS (CONT)
*6. Stabilator system – Check as follows:
a. NOE/APRCH switch – Engage.
b. Airspeed – Slow to less than 80
KTAS. Verify stabilator repositions
to 25 trailing edge down.
c. Airspeed – Increase above 80
KTAS. Verify stabilator programs
automatically.
d. RESET button – Press. Verify
NOE/APPR switch returns to OFF.
*7. VH check.
a. Smoothly increase collective while
maintaining a level flight attitude
until reaching a maximum torque,
TGT, NG, or airspeed limit.
b. Note any abnormal vibrations or
control responses.
c. Verify collective does not reach
maximum travel before reaching
allowable limit of engine
performance.
d. Return to normal flight.
A5
