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Aircraft record

N440SF2011 Eurocopter Deutschland Gmbh MBB-BK 117 C-2

Registration validUnclaimedSource: FAA, updated Oct 17, 2026

Safety record in brief:No NTSB accidents or incidents since 198229 ADs may apply10 service difficulty reports

Registration
Valid
expires Aug 31, 2029
Based in
Peoria, IL
owner city / state
Engine
ARRIEL 1E2 · 708 hp
Turbomeca
Owners
1
since 2022
NTSB events
None
since 1982
ADs may apply
29
confirm with A&P
Service reports
10
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Registered owner
Osf Aviation LLC
Owner type
LLC
City, state
Peoria, IL
Certificate issued
Aug 1, 2022
Expires
Aug 31, 2029
Airworthiness
Standard · Transport
Airworthiness date
Nov 15, 2011

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
Eurocopter Deutschland Gmbh
Model
MBB-BK 117 C-2
Year
2011
Serial number
9457
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
8
Engines
2
Max takeoff weight
Up to 12,499 lb
Mode S code
A54C33

Engine

Make and model
Turbomeca Arriel 1e2
Type
Turbo-shaft
Power
708 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. 2022 – nowOsf Aviation LLCPeoria, IL · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 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 (29)

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
2014-05-06 R1Airbus Helicopters Deutschland GmbH Helicopters (Type Certificate Previously Held by…Jan 22, 2019Airframe (MBB-BK 117 C-2)Certain serial numbers: EC135 P1 0005–00829; EC135 P2 0005–00829; EC135 P2+ 0005–00829; EC135 T1 0005–00829; EC135 T2 0005–00829; EC135 T2+ 0005–00829; …. Only with: EC135: tail rotor control lever P/N L672M2802205 or L672M1012212, cyclic control lever P/N L671M1005250, collective control lever assembly P/N L671M2020108, or collective control plate P/N L671M5040207 installed; MBB-BK 117C-2: tail rotor control lever assembly P/N B672M1007101 or B672M1807101, tail rotor control lever P/N B672M1002202 or L672M2802205, or lateral control lever assembly P/N B670M1008101 installed.
2017-03-01Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) HelicoptersMar 31, 2017Airframe (MBB-BK 117 C-2)Certain serial numbers: EC135 0005–00829; MBB-BK 117 C-2 9004–9310. Only with: EC135: with tail rotor control lever P/N L672M2802205 or L672M1012212, cyclic control lever P/N L671M1005250, collective control lever assembly P/N L671M2020108, or collective control plate P/N L671M5040207 installed; MBB-BK 117 C-2: with tail rotor control lever assembly P/N B672M1007101 or B672M1807101, tail rotor control lever P/N B672M1002202 or L672M2802205, or lateral control lever assembly P/N B670M1008101 installed.
2016-22-10Turbomeca S.A. Turboshaft EnginesDec 6, 2016Engine (ARRIEL 1E2)Only with: Engines with modification TU376 installed.
2016-21-03Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) (Airbus…Nov 25, 2016Airframe (MBB-BK 117 C-2)Only with: Lateral duplex trim actuator P/N 418-00878-050 or 418-00878-051, or longitudinal duplex trim actuator P/N 418-00878-000 or 418-00878-001, installed.
2016-04-14Turbomeca S.A. Turboshaft EnginesApr 1, 2016Engine (ARRIEL 1E2)Only with: Engines with tachometer boxes P/N 9580116170, 9580116260, 9580116900, 9580117110 (all S/Ns), or P/N 9580117550 with S/N 1499 and below (with or without suffix) or S/N 1500 and above without suffix EL, that also have electrical connectors labeled P10106, P10098, and P10108, or P11F, P13F, and P15F installed.
Show all 29 ADs
ADSubjectEffectiveApplies to
2015-12-09 R1Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) (Airbus…Feb 25, 2016Airframe (MBB-BK 117 C-2)
2016-01-14Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GmbH) HelicoptersFeb 25, 2016Airframe (MBB-BK 117 C-2)
2015-13-04Turbomeca S.A. Turboshaft EnginesSep 1, 2015Engine (ARRIEL 1E2)
2014-06-51Airbus Helicopters Deutschland GmbH (Airbus Helicopters) (Type Certificate Previously…Jul 30, 2014Airframe (MBB-BK 117 C-2)Only with: Metro Aviation, Inc. vapor-cycle air conditioning kit pulley P/N 30001 installed in accordance with STC No. SH3880SW.
2014-13-01Airbus Helicopters Deutschland GmbH (Airbus Helicopters) (Previously Eurocopter…Jul 15, 2014Airframe (MBB-BK 117 C-2)Only with: Goodrich hoist damper unit P/N 44307-480, 44307-480-1, or 44307-480-2 installed.
2014-05-04Eurocopter Deutschland GmbH HelicoptersApr 14, 2014Airframe (MBB-BK 117 C-2)Only with: With a jettisonable main cabin sliding door installed.
2013-21-06Eurocopter Deutschland GmbH HelicoptersJan 31, 2014Airframe (MBB-BK 117 C-2)Only with: Goodrich external mounted hoist with boom support assembly P/N 44301-500, 44307-500, or 44307-500-1 installed (EC135); boom P/N 44307-500 installed (MBB-BK 117 C-2).
2013-24-05Turbomeca S.A. Turboshaft EnginesJan 28, 2014Engine (ARRIEL 1E2)Serial numbers per Figure 2 of Turbomeca S.A. Alert MSB No. A292 72 0838, Version A, dated May 24, 2013. Only with: Equipped with free turbine (FT) module (M04) with part and serial numbers listed in Figure 2 of Turbomeca Alert MSB No. A292 72 0838.
2013-16-20Eurocopter Deutschland GmbH (ECD) HelicoptersSep 27, 2013Airframe (MBB-BK 117 C-2)
2013-12-05Eurocopter Deutschland GmbH HelicoptersAug 20, 2013Airframe (MBB-BK 117 C-2)Only with: Bevel gear P/N 4639 310 065 installed in tail rotor intermediate gear box (IGB) P/N 4639 002 007.
2013-11-15Eurocopter Deutschland GmbH HelicoptersJul 26, 2013Airframe (MBB-BK 117 C-2)Certain serial numbers: EC135 P1 0005–0699; EC135 P2 0005–0699; EC135 P2+ 0005–0699; EC135 T1 0005–0699; EC135 T2 0005–0699; EC135 T2+ 0005–0699; …. Only with: BO-105A/C/S/LS A-1 with cantilever assembly P/N 105-40132 or 105-40139; BO 105 LS A-3 with cantilever assembly P/N 105-40139; EC135 (excluding S/Ns 0076, 0093, 0098, 0099, 0102, 0104, 0106, 0108, 0110, 0111, 0113, 0114, 0116, 0117, 0119) with cyclic stick locking device P/N L670M1045101/-102/-104/-105/-106/-107 and pin P/N L311M1038205 or L311M1099205; MBB-BK117 A-1 through C-1 with cyclic stick holder assembly P/N 117-41140-01, 117-41230-01 or 117-41230-03; MBB-BK117 C-2 with cyclic stick locking device P/N B856M1011101 and pin P/N L311M1038205 or L311M1099205 installed.
2013-10-05Eurocopter Deutschland GmbH HelicoptersJun 10, 2013Airframe (MBB-BK 117 C-2)
2012-27-02Turbomeca S.A. Turboshaft EnginesFeb 14, 2013Engine (ARRIEL 1E2)
2012-23-12Turbomeca S.A. Turboshaft EnginesJan 7, 2013Engine (ARRIEL 1E2)Only with: Engines with fuel control units (FCUs) manufactured, repaired, or overhauled on or before March 31, 2008.
2012-24-03Turbomeca S.A. Turboshaft EnginesJan 7, 2013Engine (ARRIEL 1E2)Only with: Engines that have not incorporated Turbomeca S.A. Modification TU360.
2012-13-11Eurocopter Deutschland GmbH HelicoptersAug 7, 2012Airframe (MBB-BK 117 C-2)Serial numbers per Appendix 1 of Able Engineering & Component Services Alert Service Bulletin No. 2012-001, Revision IR, dated March 7, 2012. Only with: Tail rotor pitch link P/N 117-31821, 117-31822, or B642M1018101 with a serial number listed in Appendix 1 of Able ASB No. 2012-001 installed.
2012-12-21Eurocopter Deutschland GmbH HelicoptersJul 10, 2012Airframe (MBB-BK 117 C-2)
2012-09-11Eurocopter Deutschland GMBH HelicoptersJul 9, 2012Airframe (MBB-BK 117 C-2)Only with: Turbomeca Arriel 1E2 engine installed with a Fuel Control Unit (FCU) not modified with Turbomeca Modification TU 358.
2011-21-13Eurocopter Deutschland GmbH (ECD) Model MBB-BK 117 C-2 HelicoptersNov 21, 2011Airframe (MBB-BK 117 C-2)
2011-05-08Turbomeca Model Arriel 1E2, 1S, and 1S1 Turboshaft EnginesMar 9, 2011Engine (ARRIEL 1E2)Only with: Engines that have incorporated Turbomeca SB No. 292 73 0826, Version A, dated October 13, 2009, or Turbomeca Internal Consign No. 298468.
2010-22-07Eurocopter Deutschland GmbH Model MBB-BK 117 C-2 HelicoptersDec 3, 2010Airframe (MBB-BK 117 C-2)Only with: Tail rotor control lever B642M1009103 installed.
2009-26-07Turbomeca Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 Turboshaft…Jan 12, 2010Engine (ARRIEL 1E2)Serial numbers per Figure 1 of Turbomeca Mandatory Service Bulletin No. A292 72 0825, Version B. Only with: Engines modified by Turbomeca Modification TU332 and fitted with a reduction gearbox (module M05) listed by serial number in the MSB.
2008-15-02Eurocopter Deutschland GMBH Model MBB-BK 117C-2 HelicoptersSep 3, 2008Airframe (MBB-BK 117 C-2)Certain serial numbers: MBB-BK 117C-2 9004–9104; MBB-BK 117C-2 9106; MBB-BK 117C-2 9107; MBB-BK 117C-2 9111. Only with: With fire extinguishing system B26K1002-801, B262K1003-801, or B262K1004-801 installed.
2003-16-03Turbomeca Arriel 1 Series Turboshaft EnginesSep 12, 2003Engine (ARRIEL 1E2)Only with: Engines that have not incorporated modification TU 202.

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

Service Difficulty Reports (10)

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.

  • Electrical power · gcu · failedMay 10, 2026

    NR 1 GENERATOR DISCONNECT ON THE CAD. RESET ATTEMPTED AND STILL DISCONNECTED. PATIENT FLIGHT ABORTED DUE TO MEL RESTRICTION OF DAY VFR ONLY.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Electrical power · gcu · failedMay 10, 2026

    NR 1 GENERATOR DISCONNECT ON THE CAD. RESET ATTEMPTED AND STILL DISCONNECTED. PATIENT FLIGHT ABORTED DUE TO MEL RESTRICTION OF DAY VFR ONLY.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Electrical power · gcu · failedMay 10, 2026

    NR 1 GENERATOR DISCONNECT ON THE CAD. RESET ATTEMPTED AND STILL DISCONNECTED. PATIENT FLIGHT ABORTED DUE TO MEL RESTRICTION OF DAY VFR ONLY.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 10 reports
  • Electrical power · gcu · failedMay 10, 2026

    NR 1 GENERATOR DISCONNECT DISPLAYED ON THE CAD. RESET GENERATOR TO NO AVIAL. DUE TO MEL RESTRICTIONS OF DAY VFR ONLY FLIGHT WAS ABORTED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Electrical power · gcu · failedMay 10, 2026

    #1 GENERATOR DISCONNECT LIGHT DISPLAYED ON CAD. CONFIRMED LOSS OF GENERATOR. RESET ATTEMPTS FAILED. ABORTED FLIGHT AS MEL ONLY ALLOWED DAY VFR AND COULD NOT COMPLETE THE PATIENT TRANSFER BEFORE SUNSET.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · engine · making metalJul 21, 2023

    DURING CRUISE FLIGHT THE #1 ENGINE CHIP LIGHT ILLUMINATED. AFTER 2 ATTEMPTS TO BURN THE LIGHT REMAINED ON. THE ENGINE POWER WAS REDUCED AND PLANNING FOR PRECAUTIONARY LANDING BEGAN. THE ENGINE WAS THEN SHUT DOWN AND A RUN-ON LANDING WAS PERFORMED WITH NO FURTHER INCIDENTS. THE CHIP PLUG WAS…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Main rotor drive · indicator · inoperativeJul 17, 2020

    AIRCRAFT WAS PULLED INTO A HOVER AND THE LOW ROTOR WARNING SOUNDED AND THE ROTOR RPM READ ZERO. AIRCRAFT LANDED AND FLIGHT WAS CANCELLED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuel · warning message · illuminatedNov 18, 2018

    DURING CRUISE FLIGHT F PUMP AFT WARNING APPEARED ON THE CAD. ABORTED FLIGHT AND RETURNED TO BASE AT KPIA.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Electrical power · wire · brokenFeb 5, 2015

    ON FINAL APPROACH, NR 1 GEN DISCONNECT APPEARED ON CAD. AFTER SEVERAL ATTEMPTS TO RESET GENERATOR, IT REMAINED OFFLINE. THE ACFT LANDED AND MAINTENACE WAS CONTACTED. A MECHANIC WENT TO ACFT AND DEFERRED THE DISCREPANCY AND THE ACFT WAS FLOWN TO THE MAIN MAINTENACE FACILITY. THE NEXT DAY A BROKEN…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · engine · power lossAug 24, 2014

    BRIEFLY BEFORE ENTERING CRUISE FLIGHT, BOTH ENGINE CAD DISPLAYS SHOWED ENG PA DIS. ALSO ROTOR RPM DROPPED TO THE POINT OF WP LIGHT AND HORN. PILOT LOWERD POWER AND ATTEMPTED TO BEEP UP RPM. LOWERING POWER BROUGHT UP ROTOR RPM. AFTER CONSULTING CHECKLIST FOR WARNINGS, PILOT DECIDED TO ATTEMPT…

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

Related aircraft

Show all 8 related aircraft
All 109 registered Eurocopter Deutschland Gmbh MBB-BK 117 C-2 aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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