SDR UPS404508

Service difficulty report · Cover Plate · Boeing 747123

Difficulty date: September 21, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N673UP
Make and model: Boeing 747123
Aircraft serial: 20325
Engine: Pwa JT9D7A
System (JASC): 7261 · Turbine Engine Oil System
Part: Cover Plate
Condition: Leaked
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

PILOT REPORTED TWO HOURS INTO FLIGHT, NR 3 ENGINE OIL QUANTITY INDICATED 3.5 GALLON OIL LOSS. ENGINE WAS SHUTDOWN WITH 1 GALLON REMAINING. OIL TEMPERATURE AND PRESSURE NORMAL. MAINTENANCE FOUND OIL LEAK AT OIL PUMP COVER PLATE LOCATED ON ENGINE GEARBOX NR 3 ENGINE. REMOVED AND REPLACED PACKING ON COVER PLATES, BAGGED ALL OIL DRAIN LINES, RAN ENGINE. OPS AND LEAK CHECK GOOD.