Service difficulty report · Governor · Bombdr DHC8402

Difficulty date
April 11, 2014
Submitted
April 16, 2014
Operation
Air carrier
Aircraft
N406QX
Make and model
Bombdr DHC8402
Aircraft serial
4048
Aircraft time
31,101 hours, 32,393 cycles
Engine
Pwc PW150A
Propeller
Dowty R4086123F17
Part
Governor
Part number
697072003
Part serial
DAP0157
Condition
Malfunctioned
Location
Overspeed
Part time
22,785 hours
Stage of operation
NR
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

NR 2 PROPELLER TOOK APPROXIMATELY TWO AND A HALF TO THREE MINUTES TO COME OUT OF FEATHER, TAKING UP TO 30 SECONDS ON EARLIER LEGS. INTERROGATED CDS NO FAULTS FOUND, PERFORMED FUNCTION TEST OF PROPELLER TIME TO UNFEATHER. DID NOT PASS IAW AMM TASK 61-20-00-720-801, REF FIM 61-20-00-810-803. R & R OF NR 2 OSG IAW AMM TASKS 61-20-26-000-801 & 61-20-26-400-801. OPS TEST OF OSG, ENGINE LEAK & BONDING CHECKED GOOD. FUNCTIONAL TEST OF PROPELLER TIME TO UNFEATHER PASSED IAW AMM TASK 61-20-00-720-801. NO FURTHER DEFECTS.