Service difficulty report · Bearing

Difficulty date
January 29, 1997
Submitted
March 26, 2000
Operation
General aviation
Engine
Pwa PW120A
Part
Bearing
Part number
311161801
Condition
Failed
Location
Hp Rotor
Part time
16,992 hours
Stage of operation
CR
Nature of condition
O
Precautionary procedure
E

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) ENGINE WAS SENT FOR REPAIR AFTER A LOSS OF OIL PRESSURE AND AN INFLIGHT SHUTDOWN. METAL WAS FOUND IN THE REDUCTION GEARBOX, OIL FILTERS, CHIP DETECTORS. DISASSEMBLY OF THE ENGINE REVEALED TWO FAILURES, THE #4 BEARING AND THE AC GENERATOR. IT IS THE OPINION OF THE R&O SHOP THAT THE FAILURE OF THE #4 BEARING WAS THE CAUSE OF THE AC GENERATOR FAILURE.