Service difficulty report · Compressor · Dhav DHC7*

Difficulty date
September 8, 2005
Submitted
November 1, 2005
Operation
General aviation
Make and model
Dhav DHC7*
Aircraft time
1,782 hours
Engine
Pwa PT6A50
Part
Compressor
Condition
Damaged
Location
Engine
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 EXPERIENCED AN UNCOMMANDED POWER ROLL-BACK TO IDLE IN CRUISE, AND WAS SHUTDOWN IN FLIGHT. SUBSEQUENT INSPECTION REVEALED DAMAGE TO THE 1ST STAGE COMPRESSOR BLADES. WILL MONITOR INVESTIGATION OF THE INCIDENT AND ADVISE OF ROOT CAUSE, ONCE ESTABLISHED.