Service difficulty report · Engine · Dorner DO328100

Difficulty date
January 28, 2016
Submitted
April 22, 2016
Operation
General aviation
Make and model
Dorner DO328100
Engine
Pwa PW119B
Part
Engine
Condition
Malfunctioned
Location
Right
Stage of operation
NR
How discovered
O
Nature of condition
J
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 FOUR SEPARATE OCCASIONS, THE CREW EXPERIENCED A REDUCTION OF TORQUE ON THE RIGHT ENGINE. ON ALL OCCASIONS, THE POWER LEVER WAS FREE TO MOVE BUT MOVEMENT HAD NO EFFECT. THEY ALSO NOTED THAT ON ALL OCCASIONS, THE TORQUE BEGINS TO REDUCE AT LOW OAT AND ONLY RECOVERS WHEN THE AIRCRAFT HAS DESCENDED TO WARMER CONDITIONS (AROUND -20 TO -25C). TROUBLESHOOTING IS ON-GOING.