Service difficulty report · Compressor · Hughes 369D

Difficulty date
March 20, 2002
Submitted
April 8, 2002
Operation
General aviation
Make and model
Hughes 369D
Aircraft time
8,407 hours
Engine
Allsn 250C20B
Part
Compressor
Part number
6890550
Condition
Failed
Location
Engine
Part time
12,288 hours
Stage of operation
TX
How discovered
O
Nature of condition
Y
Precautionary procedure
O

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

What was found

(CAN) ON THE 3RD START OF THE DAY THE PILOT COULD NOT MOTOR THE ENGINE TO START THE AIRCRAFT. PULLED THE STARTER AND TRIED TO TURN N1 GEARTRAIN AND WAS UNABLE TO TURN. TRIED TO TURN THE COMPRESSOR THRU THE BYPASS DOOR BY HAND AND WAS UNABLE TO TURN. REMOVED THE ENGINE FROM THE AIRFRAME. TOOK THE COMPRESSOR OF THE GEARBOX AND WAS STILL UNABLE TO TURN THE COMPRESSOR. NO DAMAGE TO THE FIRST STAGES WAS FOUND ON THE COMPRESSOR. SUSPECTED THAT THE IMPELLAR CLEARANCES ARE TO TIGHT AND HAVE CONTACTED. COMPRESSOR OUT FOR EVALUATION.