Service difficulty report · Shutoff Valve · Bolkms BK117D3

Difficulty date
February 24, 2025
Submitted
February 24, 2025
Operation
General aviation
Aircraft
N540SF
Make and model
Bolkms BK117D3
Aircraft serial
21230
Aircraft time
580 hours, 1,487 cycles
Part
Shutoff Valve
Part number
0090288900
Part serial
K
Condition
Failed
Location
Zone 100
Part time
550 hours
Stage of operation
AA
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

PATIENT WAS PUT ONBOARD, BUT THE LIQUID OXYGEN SYSTEM WAS NOT SUPPLYING OXYGEN. REMOVED PATIENT AND DISPATCHED ANOTHER AIRCRAFT. FOUND A FAULTY OXYGEN SHUTOFF VALVE.