- Registered owner
- Osf Aviation LLC
- Location
- Peoria, IL
- Owner type
- LLC
- Serial number
- 21230
- Year built
- 2023
- Type
- Rotorcraft
- Engine
- Turbo-shaft
- Airworthiness
- Standard, transport
- Airworthiness date
- February 21, 2024
- Certificate issued
- November 14, 2023
- Expires
- November 30, 2030
- Mode S code
- A6D982
Airbus Helicopters Deutschland MBB-BK117 D-3TCDS H13EUAirframe · Airbus Helicopters Deutschland MBB-BK117 D-3TCDS E00054ENEngine · Safran ARRIEL-2E
From the FAA registry file of October 24, 2026.
On this page
Airworthiness directives that may apply · 25
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 2016 | 2 |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 5 |
| 2026 | 8 |
Airframe · Airbus Helicopters Deutschland MBB-BK117 D-3
AD 2026-17-05Cabin Equipment/FurnishingsAD 2026-10-20Main Rotor Mast/SwashplateAD 2026-08-51Main rotor drive systemEmergency ADInformation bulletins that may apply
Advisory, not mandatory.
No bulletins matched this aircraft’s models
NTSB investigations
No NTSB investigations matched to N540SFMatched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Airbus Helicopters Deutschland MBB-BK117 D-3 aircraft
FAA incident reports
No FAA accident or incident reports matched to N540SFMatched by N-number and event date, checked against the reported make and model. Reports from before this aircraft carried the mark are under Earlier aircraft. Reports on Airbus Helicopters Deutschland MBB-BK117 D-3 aircraft
Service difficulty reports · 7
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
SDR 2026FA0000269Amu · degradedAIRCRAFT PASSED PREFLIGHT CHECKS. DURING TAKEOFF THE MAST MOMENT SYSTEM STOPPED INDICATING. FLIGHT WAS ABORTED. FOUND A BAD AMC 1SDR 2026FA0000050Shutoff Valve · failedLIQUID OXYGEN SHUTOFF VALVE GOT HOT AND MALFUNCTIONED. CAUSING LOSS OF LIQUID OXYGEN TO PATIENT.SDR 2026FA0000002Gearbox · warning lightDURING FLIGHT MGB CHIP LIGHT ILLUMINATED. PILOT ATTEMPTED TWO ATTEMPTS AT BURNING THE CHIP. LIGHT REMAINED ON SO PILOT ELECTED TO MAKE AN UNSCHEDULED LANDING AT A NEARBY AIRPORT.SDR 2025FA0000688Modulating Valve · out of adjustDURING ENGINE START WITH A PATIENT ON BOARD THE NR 1 ENGINE WOULD NOT START. AFTER 2 FAILED ATTEMPTS MX WAS CONTACTED. FOUND A FAULTY ADJUSTED VALVE ASSEMBLY.SDR 2025FA0000580Door · openEPU DOOR OPENED IN FLIGHT. ADVISORY CAUTION WAS NOTED. MADE PRECAUTIONARY LANDING AND CLOSED THE DOOR NO FURTHER ACTIONS NEEDED.SDR 2025FA0000126Shutoff Valve · failedPATIENT WAS PUT ONBOARD, BUT THE LIQUID OXYGEN SYSTEM WAS NOT SUPPLYING OXYGEN. REMOVED PATIENT AND DISPATCHED ANOTHER AIRCRAFT. FOUND A FAULTY OXYGEN SHUTOFF VALVE.SDR 2024FA0000745Drain Line · wornTHIS IS ACTUALLY ON AN AIRBUS HELICOPTER H145D3 AIRCRAFT, BUT I WAS UNABLE TO FIND THE CORRECT MANUFACTURE LISTED FOR THIS. HYDRAULIC FLUID WAS LEAKING FROM THE CEILING IN THE BACK OF THE AIRCRAFT. FOUND A DRAIN LINE THAT HAD A HOLE IN IT FROM RUBBING ON A R
STCs that may be installed · 36
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
See all 36 STCs
Earlier aircraft with this N-number · 1
This aircraft carried N540SF before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.