SDR ASOA01222S

Service difficulty report · Bearing · Aerosp ATR72

Difficulty date
November 11, 2001
Submitted
February 25, 2002
Operation
Air carrier
Aircraft
N641AS
Make and model
Aerosp ATR72
Aircraft serial
387
Engine
Pwa PW127
Part
Bearing
Condition
Failed
Location
Rt Engine
Stage of operation
CL
How discovered
O
Nature of condition
A, Y, J
Precautionary procedure
E, A

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

What was found

FLT 4037 - AFTER TAKEOFF FROM ATL, THE RIGHT ENGINE QUIT PRODUCING POWER. THE TORQUE DROPPED SUDDENLY TO APPROXIMATELY 15-20 PERCENT AND FLUCTUATED BETWEEN 15-20 PERCENT. THE FLIGHT ATTENDANT REPORTED SEEING FLAMES. THE CAPTAIN SECURED THE ENGINE AND DECLARED AN EMERGENCY. AIRCRAFT LANDED SAFELY IN ATL. MAINTENANCE REMOVED AND REPLACED THE RIGHT ENGINE. TEAR DOWN REPORT REVEALED THE PRIMARY CAUSE OF THE DISCREPANCY WAS THE FAILURE OF THE NR 5 BEARING. (M)