Service difficulty report · Sensor · Bolkms BK117C2

Difficulty date
October 17, 2025
Submitted
October 17, 2025
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
9790
Aircraft time
3,779 hours
Part
Sensor
Part number
FSC211
Part serial
2018
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 INDICATIONS WERE 25-35 OFF OF EACH OTHER. #1 INDICATED 10-15 AMPS, #2 INDICATED 30-40 AMPS. AFTER AVIONICS CYCLED PITOT HEAT ON AND OFF, THE AMPS BEGAN FLUCTUATING 10-20 AMPS EACH. DURING SHUTDOWN AT IDLE THE AMPS INDICATED ONLY 5 AMPS DIFFERENCE. REMOVED AND REPLACED #1 CURRENT SENSOR IAW AMM 24-30-00, 4-6. T/F MOC COMPLETED GOOD.