Service difficulty report · Actuator · Bolkms BK117C2

Difficulty date
September 10, 2025
Submitted
September 10, 2025
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
9466
Aircraft time
4,924 hours
Part
Actuator
Part number
41800876400
Part serial
703436
Condition
Failed
Location
Autopilot
Stage of operation
HO
How discovered
O
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

WHILE ATTEMPTING TO PICK UP TO HOVER, PITCH ACTUATOR CAUTION APPEARED. ATTEMPTED TWICE, SAME CAUTION APPEARED. A TEST FLIGHT EVAL REVEALED WHEN PICKING A/C UP TO A HOVER, ACTUATOR LIGHT ILLUMINATED ON CAD WITH P ON PFD. REMOVED AND REPLACED SEMA ACTUATOR IAW AMM 67-10-00, 4-2 & 4-8.