SDR ARWA0010307

Service difficulty report · O-Ring · Doug DC862

Difficulty date: March 20, 2001
Submitted: March 22, 2001
Operation: Air carrier
Aircraft: N810BN
Make and model: Doug DC862
Aircraft serial: 45905
Aircraft time: 80,764 hours, 26,295 cycles
Engine: Pwa JT3D7
Engine time: 52,388 hours, 21,247 cycles
System (JASC): 7260 · Turbine Engine Accessory Drive
Part: O-Ring
Part number: 777882
Condition: Leaking
Location: Gearbox
Stage of operation: DE
How discovered: O
Nature of condition: J
Precautionary procedure: E

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

What was found

AT TOP OF DESCENT NR 3 ENGINE OIL PRESSURE GAUGE FLICKERS FULL SCALE HIGH AND LOW AND NR 3 ENGINE OIL PRESSURE LIGHT FLICKERS ON AND OFF. ALL OTHER ENGINE PARAMETERS NORMAL. PRECAUTIONARY ENGINE SHUTDOWN. ON INSPECTION OF ENGINE, FOUND TOWER SHAFT SEAL LEAKING, REPLACE SEAL, LEAK CHECK, AND RUN-UP AND SYSTEM CHECK COMPLETED SATISFACTORY.

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