SDR 9803156614

Service difficulty report · Compressor · Boeing 747251B

Difficulty date
February 14, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N614US
Make and model
Boeing 747251B
Aircraft serial
20359
Engine
Pwa JT9D7F
Part
Compressor
Condition
Stalled
Location
Nr 4 Engine
Stage of operation
LD
Nature of condition
R
Precautionary procedure
E

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

What was found

AFTER LANDING AND JUST AFTER STOWING THE THRUST REVERSERS, THE CREW NOTED THE LOW OIL PRESSURE WARNING LIGHT ON AND EGT INDICATION ABOVE REDLINE FOR THE NR 4 ENGINE. THE ENGINE WAS SHUT DOWN AFTER REACHING A MAX EGT OF 1132C FOR 73 SECONDS. MAINTENANCE REPLACED THE ENGINE FOR OVERTEMP. EXACT PART CAUSING THE COMPRESSOR STALL TO BE DETERMINED.