Beechcraft C-12C Operator And Technical Reference Manual page 903

NOTE
Windshield defogging may be required.
9-30. LANDING EMERGENCIES.
WARNING
Structural damage may exist after landing
with brake, tire,
malfunctions. Under no circumstances
shall an attempt be made to inspect the
aircraft until jacks have been installed.
a. Landing Gear Unsafe Indication
Should one or more of the landing gear fail to indicate
a safe condition, the following steps should be taken
before proceeding manually to extend the gear.
1. LDG GEAR CONTR switch – DN.
2. LANDING GEAR RELAY and LANDING
GEAR IND circuit breakers – Check in.
3. GEAR DOWN lights – Check.
IF INDICATOR REMAINS UNSAFE:
4. Landing gear emergency extension –
Perform.
NOTE
If gear continues to indicate unsafe,
attempt to verify position visually.
b. Landing Gear Unsafe Indication
Should one or more of the landing gear fail to indicate
a safe condition, the following steps should be taken
before proceeding manually to extend the gear.
1. LDG GEAR CONTROL switch – Check
DN.
2. LANDING
LANDING GEAR IND circuit breakers –
Check in.
3. GEAR DOWN lights illuminated – Check.
IF INDICATOR REMAINS UNSAFE:
4. Landing gear emergency extension –
Perform.
NOTE
If gear continues to indicate unsafe,
attempt to verify position visually.
or landing gear
C D1
D2
GEAR CONTROL and
c. Landing Gear Emergency Extension
Continued pumping of the handle after
GEAR DOWN position indicator lights are
illuminated could
mechanism and prevent subsequent gear
retraction.
After an emergency landing gear extension
has been made, do not stow the gear
ratchet handle or move any landing gear
controls or reset any switches or circuit
breakers until the cause of the malfunction
has been corrected.
1. Airspeed – 130 KIAS.
2. LANDING GEAR RELAY circuit breaker –
Out.
3. LDG GEAR CONTR switch – DN.
4. Landing gear alternate engage handle –
Lift and turn clockwise to the stop.
5. Alternate landing gear extension handle –
Pump.
6. GEAR DOWN lights illuminated – Check.
d. Landing Gear Emergency Extension
T.
It could require as many as 80 strokes or
more to achieve full extension.
additional time during the approach phase
to assure gear extension prior to landing.
1. Airspeed – Below 181 KIAS.
2. LANDING
breaker – Pull.
3. LDG GEAR CONTR switch – DN.
4. Alternate extension lever – Unstow.
5. Alternate extension lever – Pump up and
down until the three green GEAR DOWN
lights illuminate or resistance is felt.
TM 1-1510-218-10
C
CAUTION
damage the drive
D2 T
NOTE
Allow
GEAR CONTROL circuit
D1.
.
9-13