Beechcraft C-12C Operator And Technical Reference Manual page 867

g. Auxiliary tank fuel sump drain – Check
for leaks.
h. Heat exchanger outlet and inlet – Check
for cracks and free of obstructions.
2. Right engine and propeller – Check as
follows:
CAUTION
A cold oil check is unreliable. Oil should
be checked within
stopping engine. If more than 10 minutes
have elapsed, motor
seconds, then recheck.
hours have elapsed, run engine for 2
minutes, then recheck.
required. Do not overfill.
*a. Engine oil – Check oil level, normally, no
more than 3 quarts low, and locking tab
aft.
b. Engine compartment, left side – Check
for fuel and oil leaks, security of oil cap,
door, and general condition.
compartment access door.
c. Left cowl locks – Locked.
d. Left exhaust stub – Check for cracks and
free of obstructions.
e. Propeller blades and spinner – Check
blade condition, security of deice boot,
spinner security, and free propeller
rotation.
f. Engine air inlets and ice vane – Check
free of obstructions and correct position.
g. Bypass door – Check condition and
correct position.
h. Right cowl locks – Locked.
i. Right exhaust stub – Check for cracks
and free of obstructions.
j. Engine compartment, right side – Check
for fuel and oil leaks, ice vane linkage,
door, and general condition.
compartment access door.
3. Right main landing gear – Check as follows:
a. Fuel sump drains – Check for leaks.
*b. Tires – Check for cuts, bruises, wear,
appearance of proper inflation, wheel
condition, and that both tires have the
same tread design.
10 minutes after
engine for 40
If more than 10
Add oil as
Lock
Lock
c. Brake assembly – Check lines for
damage or signs of leakage and brake
linings for wear. Also check brake deice
assembly and
condition and security.
*d. Shock strut – Check for signs of leakage
and minimum
(5.5 inches) and left and right extension
is approximately equal.
e. Torque knee – Check condition.
f. Safety switch – Check condition, wire,
and security.
g. Fire extinguisher pressure – Check
pressure within limits (Chapter 2).
h. Wheel well, doors, and linkage – Check
for signs of leakage, broken wires,
security, and general condition.
4. Right wing – Check as follows:
a. Recessed and heated fuel vents – Check
free of obstructions.
b. GPU access door – Secured.
c. Wing ice light – Check condition.
d. Outboard deice boot – Check for secure
bonding, cracks, loose patches, stall
strip, and general condition.
*e. Tiedown – Released.
*f. Main tank fuel and cap – Check fuel
level, condition of seal, cap tight and
properly installed. Locking tab aft.
g. Outboard wing fuel vent – Check free of
obstruction and for fuel leakage.
h. Wing tip and position light – Check
condition and for cracked lens.
i. Recognition/strobe
condition.
j. Static wicks – Check security and
condition.
k. Ailerons and trim tab – Check security
and condition of ground adjustable tab.
l. Fuel sump drains – Check for leaks.
m. Flaps – Check for full extension or
retraction (approximately 1/4-inch play)
and skin damage such as buckling,
splitting, distortion, or dents.
*n. General condition – Check for skin
TM 1-1510-218-10
bleed-air hose for
strut extension
light – Check
8A-7