Service difficulty report · Switch · Dhav DHC8*

Difficulty date
April 26, 2002
Submitted
May 31, 2002
Operation
Air carrier
Make and model
Dhav DHC8*
Engine
Pwc PW150A
Part
Switch
Part number
682015
Condition
Failed
Location
Rudder Trim
Stage of operation
CR
How discovered
O
Nature of condition
F, J
Precautionary procedure
A

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

What was found

(CAN) DURING CRUISE FLIGHT AT FLIGHT LEEL 190 THE CREW EXPERIENCED A RUNAWAY RUDDER TRIM ACTUATOR WITH A FULL RIGHT DEFLECTION. RUDDER TRIM INDICATOR WAS NEUTRALIZED BY THE CREW AND THE RUDDER TRIM ACTUATOR CB F7 WAS PULLED ACCORDING TO THE EMERGENCY CHECKLIST.