Service difficulty report · Fire Detector · Bolkms BK117C2

Difficulty date
November 15, 2025
Submitted
November 26, 2025
Operation
Air carrier
Aircraft
N487LF
Make and model
Bolkms BK117C2
Aircraft serial
9255
Aircraft time
3,947 hours, 12,220 cycles
Part
Fire Detector
Part number
9550165470
Condition
False Activation
Location
Zone 400
Stage of operation
HO
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

RANDOM FIRE GONG WAS HEARD AFTER AIRCRAFT WAS RE POSITIONING TO THE HANGAR, PERFORMED FIRE EXTINGUISHING TEST. #1 ENGINE FAILS THE TEST