SDR EIA2000013

Service difficulty report · Engine · Boeing 747SR46

Difficulty date
March 10, 2000
Submitted
May 24, 2000
Operation
Air carrier
Aircraft
N478EV
Make and model
Boeing 747SR46
Aircraft serial
21033
Engine
Pwa JT9D7J
Part
Engine
Condition
Failed
Location
Nr 1
Stage of operation
NR
How discovered
O
Nature of condition
Y, J
Precautionary procedure
A

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

What was found

DURING TOD, WHEN THROTTLES WERE MOVED TO IDLE, ENGINE NR 1 CONTINUED A SMOOTH ROLLBACK. ENGINE WOULD NOT RESTART IN FLIGHT (ONLY MADE ONE ATTEMPT). FUEL HEAT WAS LAST USED 25 MINUTED PRIOR TO TOD. ENGINE WINDMILLED FOR 20-25 MINUTES. OIL PRESSURE VARIED FROM 15-25 PSI DURING APPROACH/DESCENT, AND LANDING FF WAS 400-500 LBS. PERFORMED VISUAL INSPECTION OF ENGINE NR 1 INLET AND EXHAUST SECTIONS. OPENED COWLING AND INSPECTED ENGINE COMPONENTS. NO DISCREPANCIES NOTED. MOTORED ENGINE. SYSTEMS CHECKED OK. PERFORMED LOW AND HIGH POWER ENGINE RUNS, OPS CHECK OK. (M)

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