Service difficulty report · Seal · Boeing 747422

Difficulty date
March 25, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N171UA
Make and model
Boeing 747422
Aircraft serial
24322
Engine
Pwa PW4056
Part
Seal
Part number
70R606
Condition
Missing
Location
Nr 3 Gearbox
Stage of operation
CR
Nature of condition
J
Precautionary procedure
E, A

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

What was found

AIRCRAFT DIVERTED TO SEA DUE TO A NR 3 ENGINE OIL QUANTITY PROBLEM. *S/D* FUEL PUMP DRIVE PAD ON ENGINE ACCESSORY GEARBOX LEAKING OIL. REPLACED GEARBOX DRIVE PAD CARBON SEAL, OPERATION CHECKS NORMAL.