a. Electrical/unknown origin fire
VMC Mnemonic - B.G. R.O.C.
1) Battery and generator
switches - OFF
2) Reduce airspeed (as required)
to minimize possible spread of
fire.
3) Oxygen - 100-percent
(as required)
NOTE - Under varying conditions of altitude, fire, smoke, or fumes, the pilot has the option of using 100-percent oxygen, opening canopy, and/or closing the oxygen cylinder valve as dictated by judgment.
4) Cockpit environmental
control/aft cockpit outside air - OFF
If fire persists:
5) Execute ENGINE FIRE procedure
above.
If fire extinguishes:
6) Land as soon as possible
7) Execute RESTORING ELECTRICAL
POWER procedure (if req’d)
CAUTION - Should the pilot elect to initiate an emergency landing with electrical power secured, additional consideration should be given to the landing approach; allow additional time to handcrank the landing gear down and plan for a no-flap landing with maximum runway length, since beta will not be available.
IMC
1) Utility bus switches -
OFF
2) All other nonessential
equipment - OFF (TVLAST)
3) Reduce airspeed (as required)
to minimize possible spread of
fire.
4) Oxygen - 100-percent
(as required)
NOTE - Under varying conditions of altitude, fire, smoke, or fumes, the pilot has the option of using 100-percent oxygen, opening canopy, and/or closing the oxygen cylinder valve as dictated by judgment.
5) Cockpit environmental
control/aft cockpit outside air - OFF
If fire persists:
6) Altitude permitting,
BAILOUT
If fire extinguishes:
7) Land as soon as possible
Restoring electrical power
If fire extinguishes, use the following procedure to activate essential circuits, allowing sufficient interval to isolate the faulty circuit.
1) Utility bus switches -
OFF
2) Essential bus circuit
breakers - PULL (7-11-3-7)
3) All electrical and avionic
switches - OFF (UHF, inverters,
TACAN,
VOR, transponder, avionics master)
4) Battery switch - ON
5) Generator switch - RESET
(OFF if faulty)
6) Avionic master switch
- ON
7) Activate only electrical
and avionics equipment essential to
continued
flight.
b. Wing fire
A fire in the wing could be caused by fuel leakage and/or defective electrical wiring.
VMC
1) Battery and generator
switches - OFF
2) Attempt to extinguish
the fire by slipping the aircraft away
from the fire.
If the fire does not extinguish
or is obviously fuel fed:
3) BAILOUT
If the fire is extinguished:
4) Secure the switches and
circuit breakers that control power to
the wing.
(1) Switches:
landing/navigation/strobe lights, pitot heat.
(2) Circuit
breakers: RMI COMP, LOW FUEL, LDG GEAR POSN and
WARN, FUEL QTY LEFT and/or RIGHT, AOA INST PWR
5) Battery and generator
switches - ON (if required)
6) Land as soon as possible.
IMC
When all electrical power is secured, all attitude flight instruments are inoperative. Therefore, do not secure both battery and generator switches during instrument conditions. Proceed as follows:
1) Time permitting, secure
the switches and circuit breakers that
control
power to the wing.
(1) Switches:
landing/navigation/strobe lights, pitot heat.
(2) Circuit
breakers: RMI COMP, LOW FUEL, LDG GEAR POSN and
WARN, FUEL QTY LEFT and/or RIGHT, AOA INST PWR
2) Attempt to extinguish
the fire by slipping the aircraft away
from the
fire.
If the fire does not extinguish
or is obviously fuel fed:
3) BAILOUT
If the fire extinguishes:
4) Restore power to the
wing - AS REQUIRED
5) Land as soon as possible.
c. Electrical system malfunctions
1) Generator failure
If
the generator becomes inoperative, indications will be flashing
MASTER CAUTION light and an illuminated GENERATOR annunciator.
a) Starter switch - OFF (both cockpits)
b) Generator switch - ON (reset)
If
annunciator remains illuminated:
c) Cycle electrical control transfer/TAKE COMMAND switch
d) Generator switch - ON (reset)
If generator does not return to line:
e) Reduce all nonessential electrical loads
f) Land as soon as practical
2) Inverter No. 1 or Inverter No. 2 Failure
Failure of inverter No. 1 or inverter No. 2 will be indicated by a flashing MASTER CAUTION light, illumination of the INVERTER annunciator light, and loss of all ac-powered instruments and equipment.
NOTE - If the 115-Vac, 1-amp circuit breaker pops, resetting this circuit breaker will provide power to the FWD and AFT cockpit attitude instruments regardless of inverter selected. If the 115-Vac, 1-amp circuit breaker cannot be reset, the front cockpit attitude instruments will operate normally when inverter No. 2 is selected.
a)
Cycle electrical control transfer/TAKE COMMAND switch
If annunciator remains illuminated:
b) Switch to the other inverter
c) Check inverter control relay circuit breaker - IN
WARNING - A popped 115-Vac, 1-amp circuit breaker will cause the loss of certain 115-Vac instruments depending on the cockpit and the inverter selected. Instrument flight is not possible with a complete loss of ac power. Indications are as follows:
1. Front cockpit: No. 1 inverter selected - Flashing MASTER
CAUTION,
INVERTER annunciator lights and loss of attitude gyro and
turn needle.
No. 2 inverter selected - No indications.
2. Rear cockpit: No. 1 inverter selected - Flashing
MASTER CAUTION,
INVERTER annunciator lights and loss of attitude gyro.
No. 2 inverter selected - Loss of attitude gyro and turn
needle.
3) Battery failure - low voltage reading
If
the generator is functioning normally, battery failure may be indicated
by smoke and fumes emitting from the battery box or abnormal, high charging
rates. There is no remedial actions the pilot may take to restore
battery power.
If
battery failure on ground
a) Battery switch - OFF
b) Return to parking spot and secure
If
battery failure in flight
a) Battery switch - OFF
b) Until landing, maintain normal flight procedures. Land as soon
as practical.
4) Interior light
failure in flight
With
the lights extinguished:
a) Activate and use utility/emergency light
b) Check corresponding circuit breakers - IN
c) Check corresponding switches - ON
2. Introduce:
a. S-1 pattern
b. ? (check the instructor’s grade sheet to
find this item)
c. UA-PP (non-graded)
3. Practice:
a. ICA
b. GCA maneuver
c. Approach pattern
d. Penetration maneuver
e. BAC maneuver
f. Partial panel (PP)
4. Non-graded:
a. UA-FP
b. UA-PP