Service difficulty report · Warning Unit · Bolkms BK117C2

Difficulty date
March 14, 2025
Submitted
March 14, 2025
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
9422
Aircraft time
4,206 hours
Part
Warning Unit
Part number
B315M5006052
Part serial
LE647
Condition
Failed
Location
Indicating Sys
Stage of operation
CR
How discovered
V
Nature of condition
F
Precautionary procedure
A

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

What was found

#2 ENGINE OUT LIGHT WOULD NOT EXTINGUISH. MAINTENANCE DID A RESET; RPM RANGE WAS TAKEN FROM IDLE TO FLIGHT WITH NO CHANGE IN INDICATION. FOLLOWING MOC FOR ADJUSTING N1 POTENTIOMETER, PROBLEM STILL PRESENT. REMOVED AND REPLACED WARNING UNIT ASSY; MOC COMPLETED OK.