2408-13-1 ENTRY REQUIRED
Engine oil consumption exceeds 2
quarts per hour.
Engine is subjected to sudden stop-
page or a sudden reduction in RPM.
Engine compressor stall (surge) is
712 Each time emergency power in-
dicator is tripped.
Emergency power reaches 30 min-
ute cumulative time.
When starting or beeping engines, if
loud noises or shocks are followed
by sudden high increases in engine
torque, or if a torquemeter is station-
ary at high value after shutdown.
Do not restart affected engine.
When starting engines, if either en-
gine fails to accelerate to flight
When CO2 is applied to engine inlet
When torquemeter is stationary at a
high value after shutdown.
When the transmission filter bypass
button is extended.
When a transmission is suspected
of excessive oil leakage.
When a transmission oil system has
been contaminated with hydraulic
When two different types of oil are
mixed in the forward, combining, aft,
or engine transmissions.
Respective transmission oil shall be
changed and the system flushed
within 6 hours of transmission op-
When MIL-H-83282 hydraulic fluid is
not available and MIL-H-5606 is
Indicate quantity added.
When rotary wing blade has made
contact with a foreign object or when
the power train has been subjected
to a sudden reduction in RRPM.
Helicopter is struck by lightning.
When a rotary wing blade has been
struck by lightning.
When a rotary wing has been flap-
ping due to high winds.