Service difficulty report · Garlock Seal · Boeing 747243B

Difficulty date
January 23, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N33021
Make and model
Boeing 747243B
Aircraft serial
20520
Engine
Pwa JT9D7F
Part
Garlock Seal
Part number
800195
Condition
Leaking
Location
Csd
Component
705117K
Stage of operation
CR
Nature of condition
K, J
Precautionary procedure
E

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

What was found

THE NR 3 ENGINE OIL QUANTITY DECREASED TO ZERO WHILE EN ROUTE. THE NR 3 ENGINE WAS SHUTDOWN AND THE AIRCRAFT LANDED AT HNL WITHOUT INCIDENT. MAINTENANCE FOUND OIL LEAKING FROM CSD DRIVE PAD. THE GARLOCK SEAL AND ALL OIL SEALS WERE REMOVED AND REPLACED IAW MM 72-61-07, PAGE 401. THE NR 3 ENGINE WAS SERVICED WITH OIL AND THE ENGINE WAS RUN WITH NO LEAKS DETECTED.