SDR CA980325007

Service difficulty report · Engine · Hughes 369D

Difficulty date: March 15, 1998
Submitted: January 19, 2001
Operation: General aviation
Make and model: Hughes 369D
Aircraft time: 7,175 hours
Engine: Allsn 250C20B
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Malfunctioned
Location: Engine Bay
Stage of operation: HO
How discovered: O
Nature of condition: R
Precautionary procedure: A

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

What was found

(CAN) PREVIOUSLY THIS AIRCRAFT HAD ENGINE ASSY REPLACED DUE TO A RAPID ENGINE DECELERATION ON 12/97. ENGINE WAS RE-INSTALLED AFTER HAVING A VIBRATION TESTCARRIED OUT. OTHER TESTS CARRIED OUT AND ENGINE RELEASED AS SERVICEABLE. AFTER FIVE HOURS OF AIRCRAFT TIME, A YAW CONDITION BELIEVED TO BE AN ENGINE DECELERATION WAS CONFIRMED. NO ENGINE PARAMETERS WERE NOTED AND NO ENGINE OUT WARNING SYSTEM ENGAGED.AIRCRAFT GROUNDED PENDING INVESTIGATION.