Service difficulty report · Actuator · Bombdr DHC8400

Difficulty date
August 30, 2004
Submitted
January 5, 2005
Operation
General aviation
Make and model
Bombdr DHC8400
Engine
Pwc PW150A
Propeller
Rotol CR4086123F17
Part
Actuator
Part number
3994001009
Condition
Failed
Location
Elev Pitch Trim
Stage of operation
DE
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

(CAN) DURING DECENT INBOUND TO BASE, THE PITCH TRIM CAUTION LIGHT CAME ON, QRH PERFORMED AND IT BECAME APPARENT THAT WE HAD A FAILURE OF THE PITCH TRIM. ATC NOTIFIED AND THE APPROACH PLANNED WITH HIGH SPEED FOR AS LONG AS POSSIBLE. DURING SPEED REDUCTION STICK FORCES INCREASED SIGNIFICANTLY AS DESCRIBED IN QRH. STICK FORCES LIGHTENED ON SELECTION OF FLAP 5, AND INCREASED AGAIN WITH SPEED REDUCTION. ALTHOUGH QUITE HEAVY TO HOLD, THE APPROACH AND LANDING WERE PERFORMED WITHOUT PROBLEMS. ELEVATOR PITCH TRIM ACTUATOR WAS REPLACED IAW AMM TASK 27-32-06.