SDR 9701866625

Service difficulty report · Engine · Boeing 747251B

Difficulty date: January 27, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N625US
Make and model: Boeing 747251B
Aircraft serial: 21707
Engine: Pwa JT9D7Q
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Bird Strike
Location: Nr 3
Stage of operation: CR
Nature of condition: C
Precautionary procedure: E

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

What was found

DURING CLIMB AFTER DEPARTURE, CREW REPORTED POSSIBLE BIRD STRIKE ON RIGHT WING. DURING CRUISE FLIGHT, NR 3 ENGINE HAD A LOW FREQUENCY VIBRATION AT LOWER POWER SETTINGS. NR 3 ENGINE OIL QUANTITY BEGAN TO DECREASE, NR 3 ENGINE WAS SHUT DOWN AND LATER RESTARTED PRIOR TO LANDING. MAINTENANCE FOUND BIRD STRIKE DAMAGE TO NR 3 ENGINE FAN BLADES. THE ENGINE WAS REMOVED AND REPLACED.