SDR CA131021004

Service difficulty report · Engine

Difficulty date: October 4, 2013
Submitted: September 14, 2015
Operation: General aviation
Engine: Pwc PT6C67C
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Unknown
Stage of operation: CR
How discovered: O
Nature of condition: E
Precautionary procedure: B

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

What was found

(CAN) THE ACFT HAD AN EMERGENCY LANDING AFTER 1.2 HRS. FLIGHT DUE TO SUDDEN YAW TO THE LT DURING CRUISE AT 130 KTS FOLLOWED BY KNOCKING/BANGING/POPPING SOUND. THE ACFT SYS IS SHOWING TORQUE SPLIT AND TORQUE OSCILLATION BEFORE LANDING. AWAITING RESULTS OF THE ENGINE BORESCOPE INSPECTION AND THE ENGINE DATA DOWNLOAD ANALYSIS.