Service difficulty report · Sensor · Bolkms BK117C2

Difficulty date
November 5, 2026
Submitted
November 5, 2026
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
9790
Aircraft time
4,316 hours
Part
Sensor
Part number
FSC211
Part serial
2987
Condition
Out Of Limits
Location
Generator
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

GEN AMPS SYSTEM 1 WOULD NOT STABILIZE DURING START RUN-UP. TROUBLESHOOTING REVEALED #1 HALL SENSOR WAS BAD. 15 AMP DIFFERENCE BETWEEN THE VEMD AND AMPS READ ON MULTIMETER. REMOVED AND REPLACED HALL SENSOR IAW AMM 24-30-00, 4-6. T/P MOC SUCCESSFULLY COMPLETED.