Service difficulty report · Gcu · Bolkms BK117C2

Difficulty date
May 10, 2026
Submitted
May 15, 2026
Operation
General aviation
Aircraft
N440SF
Make and model
Bolkms BK117C2
Aircraft serial
9457
Aircraft time
9,683 hours, 26,628 cycles
Part
Gcu
Part number
51530022
Part serial
P13062CAA
Condition
Failed
Location
Zone 200
Stage of operation
AA
How discovered
V
Nature of condition
J
Precautionary procedure
C

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

What was found

#1 GENERATOR DISCONNECT LIGHT DISPLAYED ON CAD. CONFIRMED LOSS OF GENERATOR. RESET ATTEMPTS FAILED. ABORTED FLIGHT AS MEL ONLY ALLOWED DAY VFR AND COULD NOT COMPLETE THE PATIENT TRANSFER BEFORE SUNSET.