Service difficulty report · Governor · Bombdr DHC8402

Difficulty date
December 9, 2016
Submitted
December 9, 2016
Operation
Air carrier
Aircraft
N439QX
Make and model
Bombdr DHC8402
Aircraft serial
4246
Aircraft time
17,622 hours, 18,795 cycles
Part
Governor
Part number
697072004
Part serial
DAP0006
Condition
Malfunctioned
Location
Overspeed
Part time
13,884 hours, 11,488 cycles
Stage of operation
TX
How discovered
9
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

DURING PREFLIGHT, NR 2 PROP DID NOT APPEAR TO BE FULLY FEATHERED. REMOVED THE NR 2 OVERSPEED GOVERNOR IAW AMM 61-20-26-000-801. REPLACED #2 ENGINE OSG IAW AMM TASK 61-20-26-400-801. OPS TEST GOOD. LEAK CHECK GOOD. PERFORMED FUNTIONAL TEST OF PROP TIME TO UNFEATHER IAW AMM TASK 61-20-00-720-801, FUNCTIONAL TEST GOOD. PERFORMED #2 PROP FEATHER CHECK IAW AMM TASK 71-00-00-868-819, CHECK GOOD. NO FURTHER DEFECTS NOTED.