Service difficulty report · Actuator · Bolkms BK117C2

Difficulty date
March 28, 2023
Submitted
March 28, 2023
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
08720739247
Aircraft time
3,885 hours
Part
Actuator
Part number
41800876400
Part serial
MC4229
Condition
Failed
Stage of operation
TX
How discovered
V
Nature of condition
F
Precautionary procedure
C

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

What was found

AUTOPILOT SYSTEM #1 AND #2 FAILED TEST SEQUENCE AFTER AVIONICS RESET X3. TEST FLIGHT EVALUATION REVEALED AP TEST FAILED AP1/AP2 ACTUATOR ON CAD WITH "P" IN AMBER ON PFD. REMOVED AND REPLACED SEMA ACTUATOR; TEST FLIGHT SUCCESSFULLY COMPLETED.