Service difficulty report · Servo · Beech 300LW

Difficulty date
September 15, 2017
Submitted
September 19, 2017
Operation
Air carrier
Aircraft
N78
Make and model
Beech 300LW
Aircraft serial
FF13
Aircraft time
15,672 hours, 8,307 cycles
Part
Servo
Part number
8221168003
Part serial
33PYX
Condition
Out Of Adjust
Location
Zone 100
Part time
921 hours, 471 cycles
Stage of operation
CR
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

AUTOPILOT MADE UN-COMMANDED MOMENTARY PITCH INPUTS AT FL230 AND THEN AGAIN AT 4000'MSL. FOUND ELEVATOR TRIM SERVO CLUTCH SLIPPING-OUT OF TOLERANCE. ADJUSTED THE SERVO CLUTCH TO MAINTENANCE MANUAL SPECS.

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