Service difficulty report · Wire Harness · Beech C90

Difficulty date
April 30, 2016
Submitted
May 2, 2016
Operation
General aviation
Aircraft
N402EM
Make and model
Beech C90
Aircraft serial
LJ944
Aircraft time
3,083 hours
Part
Wire Harness
Condition
Mismanufactured
Location
Pitch Trim
Stage of operation
IN
How discovered
9
Nature of condition
W
Precautionary procedure
K

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

What was found

FLIGHT CREW REPORTED THAT THE PITCH TRIM SYSTEM OPERATED IN REVERSE DURING AUTOPILOT USE. TROUBLESHOOTING REVEALED THAT PINS C & D WERE SWAPPED ON THE HARNESS CONNECTING THE ELECTRONIC PITCH TRIM AMP AND THE TRIM SERVO.

More about the Beech C90