SDR 0100346636

Service difficulty report · Engine · Boeing 747251B

Difficulty date
January 30, 2001
Submitted
February 8, 2001
Operation
Air carrier
Aircraft
N636US
Make and model
Boeing 747251B
Aircraft serial
23547
Aircraft time
59,493 hours, 7,735 cycles
Engine
Pwa JT9D7R4G2
Engine time
22,980 hours, 3,758 cycles
Part
Engine
Condition
Malfunctioned
Location
Nr 3
Stage of operation
TO
How discovered
O
Nature of condition
R, J
Precautionary procedure
C

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

What was found

DURING TAKEOFF ROLL, THE NR 3 ENGINE WAS SLOW TO ACCELERATE AND THEN SUFFERED A COMPRESSOR STALL. THE TAKEOFF WAS ABORTED AT APPROXIMATELY 100 KTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE ENGINE WITH NO DEFECTS NOTED. THE EVBC WAS REPLACED AND AN ENGINE TRIM RUN WAS PERFOMRED WITH ALL INDICATIONS NORMAL.