Service difficulty report · Engine

Difficulty date
August 26, 2002
Submitted
September 12, 2002
Operation
Air carrier
Engine
Pwa PT6A41
Part
Engine
Condition
Failed
Location
Lt Or Rt
Stage of operation
CR
How discovered
O
Nature of condition
R, 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

(CAN) THE ENGINE WAS SENT TO ATI FOR INVESTIGATION AND REPAIR AFTER THE OPERATOR REPORTED THAT ENGINE WAS SHUT DOWN IN FLIGHT.THE OPERATOR REPORTED THAT DURING THE FLIGHT THE PILOT HEARD A LOUD BANG FOLLOWED BY POWER LOSS AND EXTREME RISE IN ITT. THE PILOT SHUT DOWN THE ENGINE AND CONTINUED THE FLIGHT ON ONE ENGINE. ON LANDING THE OPERATOR EXAMINED THE ENGINE AND FOUND THAT THE PROPELLER COUOLDN'T BE TURNED AND THAT PARTS OF BROKEN TURBINE BLADES WERE IN THE EXHAUST DUCT. IT IS ATI'S BELIEF THAT THE PRIMARY FAILURE ORIGINATED IN THE FUEL CONTROL WHICH WAS FOUND TO HAVE ADRIVE BEARING FAILURE AND A SEIZED SHAFT.