Service difficulty report · Transformer · Bolkms BK117C2

Difficulty date
August 8, 2024
Submitted
August 8, 2024
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
14723439717
Aircraft time
4,089 hours
Part
Transformer
Part number
FSC211
Part serial
2987
Condition
Fluctuates
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

DURING RUN-UP, GEN 2 AMP DIFFERENCE WAS GREATER THAN 10. DIFFERENCE FLUCTUATED BETWEEN 5-10. DURING DC POWER CHECK FOUND THE #2 GENERATOR HAD 25.0 AMPS DC OUT WITH 5.0 AMPS DC ON VEMD. REMOVED AND REPLACED TRANSFORMATOR IAW AMM 24-30-00, 4-6. MTF SUCCESSFULLY COMPLETED IAW RFM.