INST AC Warning Annunciator Light Illu-
minated. Illumination of the INST AC warning light
indicates that 26 VAC power is not available. All
items connected to the 26 VAC bus will be inopera-
tive (refer to AC wiring schematic diagram in chap
ter 2 for equipment effected). Under these condi-
tions. power must be controlled by indications of the
Nt and TGT gages. Perform the following
Nt and TGT indications - Check.
Other engine instruments - Monitor.
f. Circuit Breaker Tripped. If the circuit
breaker is for a nonessential item. do not reset in
flight. If the circuit breaker is for an essential item,
the circuit breaker may be reset once. If a bus feeder
circuit breaker (on the overhead circuit breaker
panel) trips. a short is indicated. Do not reset in
flight. If a circuit breaker trips. perform as follows:
BUS FEEDER breaker tripped - Do
Nonessential circuit - Do not reset.
Essential circuit - Reset once.
Circuit breakers should not be reset more
than once until the cause of the circuit
malfunction has been determined and
corrected. Do not reset dual fed bus
feeder circuit breakers.
BATTERY CHARGE Light Illuminated. If
the BATTERY CHARGE caution light illuminates
during normal cruise flight. perform the following:
Battery Volt-Ampmeter - Monitor. If
battery current continues to increase,
turn battery switch off.
Battery switch (landing gear/flap exten-
sion only) - ON.
9-23. EMERGENCY DESCENT.
Emergency descent is a maximum effort in
which damage to the aircraft must be considered
secondary to getting the aircraft down. The follow-
ing procedure assumes the structural integrity of the
aircraft and smooth flight conditions. If structural
integrity is in doubt. limit speed as much as possi-
ble. reduce rate of descent if necessary, and avoid
high maneuvering loads. For emergency descent,
perform the following:
Windshield defogging may be required.
Power lever - IDLE.
Propeller lever - HIGH RPM.
3. Flaps - APPROACH.
4. Gear - DN.
Airspeed - 180 KIAS maximum.
9-24. LANDING EMERGENCIES.
Structural damage may exist after landing
with brake, tire, or landing gear malfunc-
tions. Under no circumstances shall an
attempt be made to inspect the aircraft
until jacks have been installed.
Landing Gear Unsafe Indication. Should
one or more of the three green landing gear indica-
tor lights fail to indicate a safe condition. the follow-
ing steps should be taken before proceeding to
extend the gear manually.
1. Gear - DN.
Gear lights - Check (three green).
3. Landing gear relay and indicator cir-
cuit breaker - Check In.
If gear continues to indicate unsafe.
attempt to verify position of the landing
Landing Gear Emergency Extension.
Continued pumping of the handle after
GEAR DOWN position indicator lights
(3) are illuminated could damage the
drive mechanism. and prevent subsequent