Service difficulty report · Valve · Diamon DA42NG

Difficulty date
April 9, 2021
Submitted
April 9, 2021
Operation
General aviation
Aircraft
N42LA
Make and model
Diamon DA42NG
Aircraft serial
063
Aircraft time
1,572 hours
Engine
Austro E4
Engine time
2,466 hours
Propeller
Mtprop MTV6C
Part
Valve
Part number
P8931
Part serial
17A047
Condition
Failed
Location
Prop Unfeather
Part time
241 hours
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
E

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

What was found

PROPELLER UNFEATHER VALVE FAILURE. ENGINE SHUT DOWN DURING NORMAL TRAINING. ENGINE WOULD NOT RESTART BECAUSE PROPELLER WOULD NOT UNFEATHER. BROUGHT AIRCRAFT BACK TO HOME BASE SINGLE ENGINE LANDING.

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