Service difficulty report · Compressor · Boeing 747200

Difficulty date
April 30, 2003
Submitted
May 2, 2003
Operation
Air carrier
Aircraft
N524UP
Make and model
Boeing 747200
Aircraft serial
21446
Aircraft time
66,787 hours, 7,818 cycles
Engine
Pwa JT9D7J
Engine time
45,246 hours, 12,165 cycles
Part
Compressor
Part number
7344441
Part serial
2122
Condition
Stalled
Location
Nr 3 Engine
Stage of operation
DE
How discovered
V
Nature of condition
K
Precautionary procedure
O

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

What was found

AT FL 330 NR 3 ENG COMPRESSOR STALLED. EPR WENT FROM 1.45 - 1.56 WITH 120 DEGREES RISE IN TEMP. INSP INLET AND EXHAUST (2) PERFORMED CHIP DETECTOR INSP (3) PERFORMED BORESCOPE INSPECTION. NO DEFECTS NOTED (4) REPLACED TT2 SENSOR PRECAUTIONARY. AMM 73-21-04

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