TM 55-1510-215-10
9-10.1.
Flight
Controls
Malfunction
2. Inverter control circuit breakers -
(Unscheduled Electric Elevator Trim)
Reset.
NOTE
In the event of unscheduled electric elevator
trim, perform the following:
Allow at least a 30 second cooling
period before resetting inverter
1. AP DISC/TRIM INTER switch
control circuit breaker.
- Depress and hold.
2. ELEC TRIM circuit breaker -
3. Inverter lights remain illuminated -
Pulled.
Return to original inverter.
9-11. Door Open Light Illuminated.
4. Inverter lights still remain illuminated
- Inverter off.
1. Do not attempt to close door.
2. Land as soon as practicable.
CAUTION
9-11.1. Split Flap Condition.
A split flap condition exists when the flaps are
Deleted.
in an asymmetrical configuration. Initial indication
of a split flap condition is a rolling motion during
5. TACAN - OFF.
flap extension or retraction.
Procedure for
recovery is as follows:
6. Land as soon as practicable.
1. Aileron/rudder - As required.
h. Feeder Bus Failure. Equipment receiving power
from a failed feeder bus should not be returned to
2. Power - Asymmetric power as
service. The electrical load can be reduced by turning
required to maintain aircraft control.
OFF all non-essential electrical equipment.
3. Flaps - Extend/retract
to
i. Battery Monitor Light Illuminated. Illumination of
symmetric configuration. if possible.
the battery light indicates excessive charge of battery.
This is a normal function after a battery start or after
9-12. Emergency Descent.
lowering gear and flaps. However, illumination during
normal steadystate cruise flight indicates that conditions
Emergency descent is a maximum effort in
exist that may cause a battery thermal runaway.
which damage to the aircraft must be considered
Proceed as follows:
secondary to getting the aircraft down.
For
emergency descent, proceed as follows:
1. Battery switch - OFF.
2. Loadmeter - Check.
CAUTION
NOTE
A DECREASE reading of 0.25 or more
Do
not
practice
EMERGENCY
graduation (approx.
one needle
DESCENT procedure.
Damage to
width) verifies a deteriorating battery.
landing gear door will result.
Leave battery switch OFF for
remainder of flight.
1.
Power-IDLE.
2.
Propellers - HIGH RPM.
3. Battery condition good - Battery
3.
Gear-DN.
switch ON.
4.
Flaps - APPROACH.
4. Battery condition unsatisfactory -
5.
Airspeed - 156 KCAS (154
Battery ON for flap and landing gear extension only.
KIAS) maximum.
5. Battery - OFF.
Change 8 9-14A/(9-14B blank)
