SDR 9613346303

Service difficulty report · Compressor · Boeing 747451

Difficulty date
June 16, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N663US
Make and model
Boeing 747451
Aircraft serial
23818
Engine
Pwa PW4056
Part
Compressor
Condition
Stalled
Location
Nr 3 Engine
Stage of operation
TO
Nature of condition
R, M
Precautionary procedure
C, E

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

What was found

DURING TAKEOFF ROLL-OUT (KIX), THE NR 3 ENGINE EXPERIENCED SEVERAL COMPRESSOR STALLS. THE ENGINE WAS SUBSEQUENTLY SHUT DOWN AND ABORTED TAKEOFF AT 120 KTS. EGT TEMPERATURE WENT TO 790 DEGREES INSTANTLY. BORESCOPE REVEALED INTERNAL DAMAGE OF THE HPC. THE NR 3 ENGINE WAS CHANGED AND THE AIRCRAFT RETURNED TO SERVICE.