ENSTROM 280FX OPERATOR’S MANUAL 4-7
FAA Approved: Mar 26/12 Rev. 6
Report No. 28-AC-020 Feb 21/12
9. Upper inspection door
a. Swashplate and control rods – check condition and
security.
b. Fuel tank and lines – check for leaks and lines and
fitting secure.
c. Fire curtain – check condition.
10. Kick-in step door
a. Belt drive system – check security and condition of
idler pulley, and main drive belt.
b. Tail rotor drive shaft – check condition of flex
coupling.
c. Rotor tach drive – check condition.
d. Cooling fan – check condition.
e. Check main rotor gearbox sight gauge. Normal level
is halfway mark on sight gauge.
11. Right fuel tank
a. Check for leaks, check fuel quantity and cap
secured.
NOTE
When checking the fuel quantity, Enstrom
recommends using a calibrated dipstick.
CAUTION
If the fuel level indication on the dipstick is
lower than 1/4, take-off is not recommended.
12. From steps
a. Check main rotor gearbox filler cap closed.
b. Check area between fuel tanks for leaks and
obstruction to air flow.
c. Main rotor shaft – check condition.
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level of the 280FX Rotorcraft Flight Manual.
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