SDR QR9R20220124003

Service difficulty report · Actuator · Bolkms BK117C2

Difficulty date: January 24, 2022
Submitted: January 24, 2022
Operation: General aviation
Filed by: QR9R369D
M1 Support Services
Make and model: Bolkms BK117C2
Aircraft serial: 10721719420
Aircraft time: 2,580 hours
System (JASC): 2200 · Auto Flight System
Part: Actuator
Part number: 41800876400
Part serial: 710491
Condition: Warning Light
Stage of operation: CR
How discovered: V
Nature of condition: J
Precautionary procedure: A

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

What was found

IN FLIGHT, AFTER 25 MINS, ACTUATOR CAUTION CAME ON CAD. LANDED, MAINTENANCE DID RESET, PULLING PITCH CAUTION CAME BACK ON. T/F EVALUATION REVEALED YAW SERVO LIGHT ILLUMINATES WITH ANY AMOUNT OF COLLECTIVE INPUT. REPLACED YAW SEMA ACTUATOR IAW 67-20-00, 4-8. TEST FLIGHT SUCCESSFULLY COMPLETED.