Service difficulty report · Governor · Bombdr DHC8402

Difficulty date
July 15, 2012
Submitted
July 17, 2012
Operation
Air carrier
Aircraft
N436QX
Make and model
Bombdr DHC8402
Aircraft serial
4236
Aircraft time
8,431 hours, 9,246 cycles
Engine
Pwc PW150A
Propeller
Dowty R4086123F17
Part
Governor
Part number
697072004
Part serial
DAP0389
Condition
Malfunctioned
Location
Nr 2
Part time
9,254 hours, 9,972 cycles
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
C

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

What was found

ON TAKEOFF NR 2 PROPELLER NEVER REACHED 1020 RPM. PROPELLER REACHED 950 RPM AND TORQUE AT 92 PERCENT, NR 1 ENGINE RUNS NORMALLY AFTER SELECTION TO PROPELLERS 900 RMP EVERYTHING FUNCTIONED NORMALLY. REPLACED NR 2 OVERSPEED GOVERNOR IAW AMM TASK 61-20-26-000-801 AND 61-20-26-400-801. OPS AND LEAK CHECKED GOOD.