Service difficulty report · Seal · Dhav DHC6*

Difficulty date
January 11, 2016
Submitted
April 22, 2016
Operation
General aviation
Make and model
Dhav DHC6*
Engine
Pwa PT6A34
Part
Seal
Part number
700580
Condition
Defective
Location
Check Valve
Part time
12 hours
Component
Check Valve · Viking
Component part number
700246
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

(CAN) FUEL MOTIVE LINE STRAINER, CHECK VALVE FOUND TO HAVE A SWOLLEN RUBBER SEAL WHICH PREVENTED THE FLAPPER FROM SEALING. SPRING UNABLE TO RETURN VALVE TO CLOSED POSITION.