Beechcraft C-12C Operator And Technical Reference Manual page 864

TM 1-1510-218-10
Fuel and oil quantity checks may be
performed prior to Exterior Check to
preclude carrying a ladder and fuel sample
container during
preflight. During warm weather, open fuel
caps slowly to prevent being sprayed by
fuel under pressure.
1. Fuel sample – Check collective fuel sample
from all drains for possible contamination.
Refer to Chapter 2 for locations.
All exterior check areas are illustrated in
Figure 8A-2.
8A-14. LEFT WING, AREA 1.
1. Left wing – Check as follows:
*a. General condition – Check for skin
damage such as buckling, splitting,
distortion, dents, or fuel leaks.
b. Flaps – Check for full extension or
retraction (approximately 1/4-inch play)
and skin damage, such as buckling,
splitting, distortion, or dents.
c. Fuel sump drains – Check for leaks.
d. Ailerons and trim tab – Check security
and trim tab rig.
e. Static wicks – Check security and
condition.
f. Wing tip and position lights – Check
condition and for cracked lens.
g. Recognition/strobe
condition.
h. Outboard wing fuel vent – Check free of
obstruction and for fuel leakage.
*i. Main tank fuel and cap – Check fuel
level, condition of seal, cap tight and
properly installed. Locking tab aft.
j. Outboard deice boot – Check for secure
bonding, cracks, loose patches, and stall
strip.
k. Stall warning vane – Check free.
*l. Tiedown – Released.
m. Wing ice light – Check condition.
n. Recessed and heated fuel vents – Check
free of obstructions.
8A-4
NOTE
the balance of the
NOTE
light –
2. Left main landing gear – Check as follows:
*a. Tires – Check for cuts, bruises, wear,
b. Brake assembly – Check brake lines for
*c. Shock strut – Check for signs of leakage,
d. Torque knee – Check condition.
e. Safety switch – Check condition, wire,
f. Fire extinguisher pressure – Check
g. Wheel well, doors, and linkage – Check
h. Fuel sump drains – Check for leaks.
3. Left engine and propeller – Check as
follows:
A cold oil check is unreliable. Oil should
be checked
stopping engine. If more than 10 minutes
have
40 seconds, then recheck.
Check
10 hours have elapsed, run engine for
2 minutes, then recheck.
required. Do not overfill.
*a. Engine oil – Check oil level, normally no
b. Engine compartment, left side – Check
c. Left cowl locks – Locked.
d. Left exhaust stub – Check for cracks and
e. Propeller blades and spinner – Check
appearance of proper inflation, wheel
condition, and that both tires have the
same tread design.
damage or signs of leakage and brake
linings for wear. Also check the brake
deice assembly and bleed air hose for
condition and security.
minimum strut extension (5.5
and that left and right extension is
approximately equal.
and security.
pressure within limits (Chapter 2).
for signs of leakage, broken wires,
security, and general condition.
CAUTION
within 10 minutes
elapsed, motor engine
If more than
more than 3 quarts low, cap secured,
and locking tab aft.
for fuel and oil leaks, security of oil cap,
door, and general condition.
compartment access door.
free of obstructions.
blade condition, deice boot, security of
spinner, and free propeller rotation.
inches),
after
for
Add oil as
Lock