Service difficulty report · Garlock Seal · Boeing 747200

Difficulty date
October 6, 2002
Submitted
October 10, 2002
Operation
Air carrier
Aircraft
N524UP
Make and model
Boeing 747200
Aircraft serial
21446
Aircraft time
65,322 hours, 17,489 cycles
Engine
Pwa JT9D7J
Engine time
44,624 hours, 12,030 cycles
Part
Garlock Seal
Part number
804275
Condition
Leaking
Location
Nr 2 Engine
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
O

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

What was found

USED 2 GALLONS OF ENG OIL ON NR 2 ENG IN 3.7 HOURS OF FLT. QTY LOSS TO 0.1 GALLONS INDICATED. NR 2 ENG OIL SYSTEM STATIC LEAK CHECKED IN HKG. TEST NR 6 CARRIED IAW AMM 71-00-00. FOUND GENERATOR DRIVE CARBON GARLOCK SEAL LEAKING. SEAL CHANGED IAW AMM 72-61-08, PG 401. SYSTEM STATIC LEAK CHECK OK, ENG GROUND IDLE RUN C/OUT SATISFACTORY. ALSO FOUND NR 1 & NR 2 BEARING CHIP DETECTOR HAD OIL LEAK. REMOVED & REPLACED CHIP DETECTOR ASSY. LEAK CHECK OK PER MM 72-61-01.

More about the Boeing 747-200