Service difficulty report · Governor · Diamon DA42

Difficulty date
May 17, 2013
Submitted
May 17, 2013
Operation
General aviation
Aircraft
N131TS
Make and model
Diamon DA42
Aircraft serial
42073
Engine
Thielt TAE1250299
Propeller
Mtprop MTV6*
Part
Governor
Part number
P87716
Part serial
10G029FD
Condition
Failed
Location
Lt Propeller
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

PILOT STATED LT ENGINE DID NOT RESTART AFTER SHUTDOWN & SECURING. AT APPROX 1 MIN 15 SEC, BEGAN RESTART CHECKLIST FOR A STATIONARY PROP START. TURNED ON LT ENGINE MASTER, NOTICED LT PROP DID NOT MOVE OR UNFEATHER. INSPECTED FEATHERING SYS & FOUND 39 OHM, 25W RESISTOR FAILED. R & R RESISTOR. ENGINE WOULD NOT FEATHER. PERFORMED CONTINUITY CHECK OF FEATHERING SYS & CHECK ON WIRES FOR SYS, CHECKED GOOD. SWAPPED GOVERNORS LT - RT ENGINE. PERFORMED GROUND RAN & LT ENGINE WOULD FEATHER & UNFEATHER, RT ENGINE WOULD FEATHER BUT NOT UNFEATHER. REINSTALLED RT GOVERNOR TO RT ENGINE & REMOVED LT GOVERNOR & INSTALLED NEW. PERFORMED GROUND RUN & LEAK CHECK OF BOTH LT & RT ENGINE. GROUND RUN GOOD.

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