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Aircraft record

N540SF2023 Airbus Helicopters Deutschland MBB-BK117 D-3

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:No NTSB accidents or incidents since 198220 ADs may apply7 service difficulty reports

Registration
Valid
expires Nov 30, 2030
Based in
Peoria, IL
owner city / state
Owners
1
since 2023
NTSB events
None
since 1982
ADs may apply
20
confirm with A&P
Service reports
7
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
Osf Aviation LLC
Owner type
LLC
City, state
Peoria, IL
Certificate issued
Nov 14, 2023
Expires
Nov 30, 2030
Airworthiness
Standard · Transport
Airworthiness date
Feb 21, 2024

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Airbus Helicopters Deutschland
Model
MBB-BK117 D-3
Year
2023
Serial number
21230
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
10
Engines
1
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
H13EU
Mode S code
A6D982

Engine

Make and model
Safran Arriel 2e
Type
Turbo-shaft
Power
894 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2023 – nowOsf Aviation LLCPeoria, IL · current
  2. 2003 – 2018Individual ownerPaxton, IL · different airframe: 2003 Foster Stan Air Command S/N 001

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (20)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2026-17-05Cabin Equipment/FurnishingsOct 2, 2026Airframe (MBB-BK117 D-3)
2026-15-03Turbine SectionSep 3, 2026Engine (ARRIEL 2E)
2026-10-20Main Rotor Mast/SwashplateJul 9, 2026Airframe (MBB-BK117 D-3)
2026-08-51Airbus Helicopters Deutschland GmbH (AHD) HelicoptersMay 14, 2026Airframe (MBB-BK117 D-3)
2026-06-04Rotorcraft flight controlApr 30, 2026Airframe (MBB-BK117 D-3)
Show all 20 ADs
ADSubjectEffectiveApplies to
2026-02-12Main Rotor Mast/SwashplateFeb 17, 2026Airframe (MBB-BK117 D-3)
2025-25-11Cabin Equipment/FurnishingsFeb 6, 2026Airframe (MBB-BK117 D-3)
2025-20-06Air Conditioning SystemDec 23, 2025Airframe (MBB-BK117 D-3)
2025-18-04Airbus Helicopters Deutschland GmbH HelicoptersOct 21, 2025Airframe (MBB-BK117 D-3)
2025-14-04Main Rotor Mast/SwashplateJul 30, 2025Airframe (MBB-BK117 D-3)
2025-04-10Emergency equipmentMar 24, 2025Airframe (MBB-BK117 D-3)
2024-04-01Airbus Helicopters Deutschland GmbH (AHD) HelicoptersApr 19, 2024Airframe (MBB-BK117 D-3)
2023-22-15Airbus Helicopters Deutschland GmbH (AHD) HelicoptersJan 16, 2024Airframe (MBB-BK117 D-3)
2023-22-03Turbine sectionDec 26, 2023Engine (ARRIEL 2E)
2023-05-09Airbus Helicopters Deutschland GmbH (AHD) HelicoptersMar 31, 2023Airframe (MBB-BK117 D-3)Only with: Model EC135P3 and EC135T3 helicopters only with Helionix installed (EC135P3H/EC135T3H designations).
2022-10-51Airbus Helicopters and Airbus Helicopters Deutschland GmbH (AHD) HelicoptersJun 7, 2022Airframe (MBB-BK117 D-3)
2022-06-01Airbus Helicopters Deutschland GmbH HelicoptersApr 20, 2022Airframe (MBB-BK117 D-3)Only with: Includes Model MBB-BK117 D-2 helicopters converted into Model MBB-BK117 D-3.
2022-02-17Airbus Helicopters Deutschland GmbH (AHD) HelicoptersFeb 10, 2022Airframe (MBB-BK117 D-3)
2018-10-01Accessory GearboxesJun 11, 2018Engine (ARRIEL 2E)Only with: Front support part number 0 292 11 715 0 installed (pre-mod TU 197 configuration).
2016-25-13Safran Helicopter Engines, S.A. (Formerly Turbomeca S.A.) Turboshaft EnginesFeb 3, 2017Engine (ARRIEL 2E)Only with: Engine accessory gearbox (AGB) P/N 0292120650 with a machined front casing installed.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (7)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Indicating and recording systems · amu · degradedApr 6, 2026

    AIRCRAFT PASSED PREFLIGHT CHECKS. DURING TAKEOFF THE MAST MOMENT SYSTEM STOPPED INDICATING. FLIGHT WAS ABORTED. FOUND A BAD AMC 1

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Oxygen · shutoff valve · failedJan 17, 2026

    LIQUID OXYGEN SHUTOFF VALVE GOT HOT AND MALFUNCTIONED. CAUSING LOSS OF LIQUID OXYGEN TO PATIENT.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Main rotor drive · gearbox · warning lightJan 4, 2026

    DURING 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.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 7 reports
  • Engine fuel and control · modulating valve · out of adjustOct 7, 2025

    DURING 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.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Doors · door · openAug 26, 2025

    EPU DOOR OPENED IN FLIGHT. ADVISORY CAUTION WAS NOTED. MADE PRECAUTIONARY LANDING AND CLOSED THE DOOR NO FURTHER ACTIONS NEEDED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Oxygen · shutoff valve · failedFeb 24, 2025

    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.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Servicing · drain line · wornSep 15, 2024

    THIS 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 RIVET. THERE WAS NO FLUID LOSS FROM THE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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