SDR CAL950948

Service difficulty report · O-Rings · Boeing 7373T0

Difficulty date: October 23, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N12349
Make and model: Boeing 7373T0
Aircraft serial: 23587
Engine: Ge CFM563B1
System (JASC): 7260 · Turbine Engine Accessory Drive
Part: O-Rings
Condition: Cut
Location: Nr 2 Gearbox
Stage of operation: AP
Nature of condition: K, J
Precautionary procedure: E

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

What was found

GSO - FLT 0171 - THE NR 2 ENGINE LOW OIL PRESSURE LIGHT ILLUMINATED WHILE ON FINAL APPROACH TO GSO. THE NR 2 ENGINE WAS SHUT DOWN AS A PRECAUTIONARY MEASURE. THE CREW REPORTED LOSING LESS THAN 8.5 PSI OIL PRESSURE. MAINTENANCE FOUND THE NR 2 ENGINE ANGLE GEARBOX LEAKING AT O-RINGS. THE O-RINGS WERE REMOVED AND REPLACED AND LEAK CHECK WAS GOOD. THE NR 2 ENGINE WAS REMOVED AND REPLACED AS A PRECAUTIONARY MEASURE DUE TO THE OIL LOSS. (X)