Service difficulty report · Starter Gen · Bolkms BK117C2

Difficulty date
July 3, 2025
Submitted
July 3, 2025
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
9824
Aircraft time
3,264 hours
Part
Starter Gen
Part number
23081072
Part serial
812
Condition
Fluctuates
Location
Nr 1
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

GEN AMPS SPLIT GREATER THAN 10 (GEN 1: 30; GEN 2: 50 AT FLIGHT). A TEST PILOT EVAL FOUND #2 GEN AMPS CLIMBED TO 70 AS #1 DROPPED TO ZERO DURING CLIMB OUT. AFTER DECLARING A PL AND RETURNING TO AIRFIELD THE AMPS RETURNED TO 35 EACH. ON SHUTDOWN #1 AMPS INDICATED 15 AND #2 WAS ZERO. REMOVED AND REPLACED #1 ENGINE STARTER GENERATOR IAW AMM 24-30-00, 4-2. T/F SUCCESSFULLY COMPLETED.