SDR EIAA980236

Service difficulty report · Seal · Boeing 747SR46

Difficulty date
August 24, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N478EV
Make and model
Boeing 747SR46
Aircraft serial
21033
Engine
Pwa JT9D7A
Part
Seal
Condition
Failed
Location
Nr 3 Engine
Stage of operation
TO
Nature of condition
O
Precautionary procedure
K

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

What was found

HNL - AFTER TAKEOFF, NR 3 ENGINE OIL QTY DECREASED TO .5 GALLONS, OIL PRESSURE FLUCTUATED 40-45 PSI. REDUCED POWER AND OIL PRESSURE DROPPED TO 35 PSI WITH ASSOCIATED OIL PRESSURE LIGHT. SHUTDOWN ENGINE NR 3, WINDMILLED FOR APPROXIMATELY 32 MINUTES, OIL PRESSURE AT 12 PSI. PERFORMED ENGINE WINDMILL INSPECTION PER MM 72-00-00. CHECKED MAIN OIL FILTER AND CHIP DETECTORS PER MM 72-61-00 AND -05. REPLACED GENERATOR AND CSD GARLOCK SEALS PER MM 72-61-07 AND -08. REPLACED CSD TRANSFER TUBE PER MM 72-61-62. REPLACED CSD DRIVE SHAFT SEALS AND GENERATOR SEALS PER MM 72-61-16. RAN ENGINE, NO LEAKS FOUND. (M)

More about the Boeing 747-SR-46