SDR UPS97422528

Service difficulty report · Csd Seal · Boeing 747123

Difficulty date: April 4, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N671UP
Make and model: Boeing 747123
Aircraft serial: 20323
System (JASC): 2410 · Alternator-Generator Drive
Part: Csd Seal
Condition: Leaks
Location: Nr 3 Engine
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

INSPECTION TYPE-N/A, SHUTDOWN NR 3 ENG AT 2342Z DUE TO LOW OIL QUANTITY, LESS THAN .5 GAL. LANDED UNEVENTFULLY AT 0052Z. *S/D* PRES NR 3 ENG GEAR CASE, VERIFIED OIL LEAKING FROM CSD GANG DR. STEADY STREAM AT 4 PSI. REMOVED AND REPLACED NR 3 ENG CSD GARLOCK SEAL, TRANSFER TUBE SEALS AND SHAFT SEALS, REPRESSURIZED GEAR CASE AND NO LEAKS NOTED. ENG NR 3 OPS AND LEAK CK OK PER MM 24-00-00. CSD DISC/ RECONNECT OPS CK.