Service difficulty report · Engine · Boeing 747200

Difficulty date
March 31, 2006
Submitted
April 17, 2006
Operation
Air carrier
Aircraft
N524UP
Make and model
Boeing 747200
Aircraft serial
21446
Aircraft time
70,977 hours, 18,914 cycles
Engine
Pwa JT9D7J
Engine time
77,592 hours, 19,661 cycles
Part
Engine
Part number
JT9D7J
Part serial
685969
Condition
Shutdown
Location
Nr 4
Part time
77,592 hours, 19,661 cycles
Stage of operation
LD
How discovered
V
Nature of condition
M, J
Precautionary procedure
E

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

What was found

NUMBER 4 ENGINE COMPRESSOR STALL BELOW 60 KTS, SHUTDOWN ENGINE, EGT WENT TO 1090 FOR 3 SECONDS. PERFORMED BORESCOPE INSPECTION OF LPC, HPC, COMBUSTION CHAMBER ASSY, HPT AND LPT, IAW 72-00-00 PG 601, NO DEFECTS NOTED. PERFORMED OVER TEMPERATURE VISUAL INSPECTION IAW 72-00-00, NO DEFECTS NOTED. A/C RELEASED TO SERVICE.

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