N866AL2004 Sikorsky S-76C
Safety record in brief:No NTSB accidents or incidents since 198229 ADs may apply7 service difficulty reports
Registration
FAA Aircraft Registry · Oct 19, 2026- Registered owner
- Mar Aviation LLC
- Owner type
- LLC
- City, state
- Tulsa, OK
- Certificate issued
- Aug 11, 2021
- Expires
- Aug 31, 2028
- Airworthiness
- Standard · Transport
- Airworthiness date
- May 11, 2004
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 dataAirframe
- Manufacturer
- Sikorsky
- Model
- S-76C
- Year
- 2004
- Serial number
- 760562
- Aircraft type
- Rotorcraft
- Category
- Land
- Certification
- Type Certificated
- Seats
- 14
- Engines
- 2
- Max takeoff weight
- Up to 12,499 lb
- Type certificate data sheet
- H1NE
- Mode S code
- ABE52C
Engine
- Make and model
- Turbomeca Arriel 2s1
- Type
- Turbo-shaft
- Power
- 833 hp
Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history
Ownership history from FAA records- 2021 – nowMar Aviation LLCTulsa, OK · current
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 19, 2026 · SDRs · Oct 16, 2026NTSB events (0)
No NTSB accidents or incidents found for this airframe since 1982.
Accident history for this modelADs 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.
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2024-20-07 | Various Helicopters | Dec 5, 2024 | Airframe (S-76C)Only with: Only helicopters modified by the applicable STC (SR00831LA, SR00780LA, SR01687LA, SR00856LA, SR01855LA, SR02244LA, SR01779LA, SR01459LA, SR01535LA, SR00932LA, SR02049LA, SR02484LA, or SR01902LA). |
| 2021-13-08 | Fuel Control/ Turbine Engines | Aug 19, 2021 | Engine (ARRIEL 2S1) |
| 2021-05-08 | Engine BMEP/ Torque Indicating | Apr 15, 2021 | Engine (ARRIEL 2S1) |
| 2020-15-17 | Indicating/ recording system | Sep 9, 2020 | Airframe (S-76C)Only with: Equipped with remote data acquisition unit (RDAU) P/N 76450-01098-106, 76450-01098-107, or 76450-01098-109. |
| 2019-19-12 | Sikorsky Aircraft Corporation Helicopters | Nov 8, 2019 | Airframe (S-76C)Only with: With a Turbomeca Arriel 2S1 or Arriel 2S2 engine with engine collective position transducer (CPT) P/N 76900-01821-104 or 76900-01821-105 installed. |
Show all 29 ADsShow fewer ADs
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2017-19-01 | Sikorsky Aircraft Corporation Helicopters | Jan 2, 2018 | Airframe (S-76C)Certain serial numbers: …–761075. Only with: Main rotor servo pushrod assembly P/N 76400-00034-059, 76400-00014-074, 76400-00014-076, or 76400-00014-077 installed. |
| 2016-25-13 | Safran Helicopter Engines, S.A. (Formerly Turbomeca S.A.) Turboshaft Engines | Feb 3, 2017 | Engine (ARRIEL 2S1)Only with: Engine accessory gearbox (AGB) P/N 0292120650 with a machined front casing installed. |
| 2016-03-02 | Turbomeca S.A. Turboshaft Engines | Mar 15, 2016 | Engine (ARRIEL 2S1)Only with: Engines with modification TU34 or TU34A installed. |
| 2015-26-10 | Sikorsky Aircraft Corporation Helicopters | Feb 9, 2016 | Airframe (S-76C)Only with: Main gearbox P/N 76351-09000 series, 76351-09500 series, or 76351-09600 series installed that has been repaired in accordance with Sikorsky ORI No. 76350-065 (original or Revision A). |
| 2015-19-51 | Sikorsky Aircraft Corporation Helicopters | Nov 10, 2015 | Airframe (S-76C)Only with: Main rotor servo input control pushrod assembly P/N 76400-00034-059 or tail rotor pushrod assembly P/N 76400-00014-071 installed. |
| 2015-13-04 | Turbomeca S.A. Turboshaft Engines | Sep 1, 2015 | Engine (ARRIEL 2S1) |
| 2014-12-05 | Turbomeca S.A. Turboshaft Engines | Aug 4, 2014 | Engine (ARRIEL 2S1) |
| 2013-22-15 | Sikorsky Aircraft Corporation (Sikorsky) Helicopters | Dec 13, 2013 | Airframe (S-76C)Certain serial numbers: …–760822. Only with: With spindle cuff assembly P/N 76102-08001-043, -045 or -046, or blade fold cuff assembly P/N 76150-09601-041 installed. |
| 2012-22-13 | Sikorsky Aircraft Corporation Helicopters | Dec 20, 2012 | Airframe (S-76C)Certain serial numbers: S-76C 760506; S-76C 760607–760812 |
| 2010-26-09 | Sikorsky Aircraft Corporation (Sikorsky) Model S76A, B, and C Helicopters | Jan 12, 2011 | Airframe (S-76C)Only with: LITEF LCR-100 Attitude Heading and Reference System (AHRS) Unit P/N 145130-7100 installed |
| 2010-10-02 | Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters | Jun 17, 2010 | Airframe (S-76C)Only with: Main rotor servo actuator Sikorsky P/N 76650-09805-109 or -110 (also marked HR Textron or Woodward HRT P/N 3006760-109 or -110) installed. |
| 2010-06-08 | Sikorsky Aircraft Corporation Model S-76C Helicopters | Apr 1, 2010 | Airframe (S-76C)Certain serial numbers: S-76C 760501; S-76C 760506–760761. Only with: With Option Code 88051 Flotation System installed by Keystone Helicopter Corporation. |
| 2010-04-07 | Turbomeca Arriel 2S1 Turboshaft Engines | Mar 23, 2010 | Engine (ARRIEL 2S1)Only with: Engines that have not incorporated Modification TU 109. |
| 2007-24-10 | Turbomeca Arriel 2S1 and 2S2 Turboshaft Engines | Dec 14, 2007 | Engine (ARRIEL 2S1)Only with: Engines with a hydro mechanical unit (HMU) installed that was manufactured, or repaired/overhauled, before December 8, 2006. |
| 2005-22-01 | Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters | Nov 10, 2005 | Airframe (S-76C)Only with: Main rotor hub pilot fitting P/N 76103-08003-101 with 1500 or more hours TIS installed. |
| 2003-04-15 | Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters | Feb 27, 2003 | Airframe (S-76C) |
| 2002-15-51 | Sikorsky Aircraft Corporation Model S76A, B, and C Helicopters | Oct 18, 2002 | Airframe (S-76C) |
| 2001-25-06 | Sikorsky Aircraft Corporation Model S-76B and S-76C Helicopters | Jan 4, 2002 | Airframe (S-76C)Certain serial numbers: S-76B 760430; S-76B 760441–760445; S-76B 760448–760452; S-76B 760454; S-76B 760455; S-76B 760458; … |
| 2001-10-06 | Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters | May 17, 2001 | Airframe (S-76C)Only with: Main rotor shaft assembly P/N 76351-09030 (all dash numbers) installed. |
| 2001-01-04 | Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters | Feb 2, 2001 | Airframe (S-76C)Certain serial numbers: …–760513. Only with: Positioning rod assembly P/N 1945E-31A or 2071-31, or side brace rod end P/N 1945E-235 or 2071-235, installed. |
| 2000-11-52 | Sikorsky Aircraft Corporation Model S-76 Series Helicopters | Aug 31, 2000 | Airframe (S-76C) |
| 99-19-30 | Sikorsky Aircraft Corp. Model S76A, B, and C Helicopters | Oct 4, 1999 | Airframe (S-76C) |
| 99-07-01 | Sikorsky Aircraft Corporation (Sikorsky) Model S-76C Helicopters | Apr 7, 1999 | Airframe (S-76C)Only with: Turbomeca Arriel 2S1 engines with HMU P/N 0.292.92.822.0, 0.292.92.808.0, 0.292.92.813.0, or 0.292.92.828.0 installed. |
| 99-01-09 | Sikorsky Aircraft Corporation Model S- 76C Helicopters | Mar 3, 1999 | Airframe (S-76C)Certain serial numbers: S-76C 760477; S-76C 760479; S-76C 760481–760487; S-76C 760490; S-76C 760491; S-76C 760493 |
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.
- Fire protection · fire detector · defectiveNov 21, 2015
NUMBER 1 ENG FIRE LIGHT ILLUMINATED. SHUTDOWN NR 1 ENG, BLEW BOTH FIRE BOTTLES, FIRE LIGHT REMAINED ILLUMINATED. RETURNED TO BASE, TOWER NOTIFIED CREW THAT THERE WAS NO VISUAL INDICATION OF SMOKE BEING TRAILED. LANDED SAFELY & CONDUCTED A NORMAL SHUTDOWN OF ACFT.
From FAA Service Difficulty Reports; matched by N-number and serial number. - Landing gear · actuator · leakingJan 12, 2015
CREW NOTICED AN INCREASE IN NOISE & THE SMELL OF SMOKE. SWITCHED OFF HEATER BLOWER & LANDED NORMALLY. CHECKED ELEC SYS, FOUND NO DISCREPANCIES. SHUTDOWN ACFT FOUND HYD FLUID DRIPPING UNDER NOSE GEAR. REPLACED LEAKING NOSE GEAR ACTUATOR.
From FAA Service Difficulty Reports; matched by N-number and serial number. - Nacelles and pylons · firewall · damagedMay 12, 2014
ON DESCENT, CRUISE REPO FLIGHT FROM HUM TO GNO WITH NO PAX, MANEUVERED TO AVOID SEAGULL, WHICH IMPACTED ABOVE LT WINDSHIELD WITH AUDIBLE THUMP. ENG OUT AUDIO & LIGHT ACTIVATED MOMENTARILY BUT NO UNUSUAL NOISE OR VIBRATIONS OCCURRED. INSTRUMENTS DISPLAYED 10% TORQUE SPLIT & TS INCREASE, WITH DAFCS…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 7 reportsShow fewer reports
- Landing gear · landing gear · corrodedOct 9, 2012
FOUND AXLE FITTING, AXLE FITTING STUD, LOWER BEARING, AND TORQUE ARM PIN WITH CORROSION PITTING.
From FAA Service Difficulty Reports; matched by N-number and serial number. - Doors · door · unsecureJul 12, 2005
UPON ARRIVAL, DURING PASSENGER UNLOADING, ONE OF THE PASSENGERS PULLED THE RED EMERGENCY DOOR RELEASE AND JETTISON THE RT PASSENGER DOOR. WHEN THE COPILOT ATTEMPTED TO CLOSE THE DOOR, HE NOTICED THAT THE DOOR WAS LOOSE AND NOT SECURED. AC WAS SHUTDOWN AND OPS WAS NOTIFIED. THE MECHANIC PUT THE…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Engine fuel and control · pressure switch · inoperativeMay 20, 2005
AT A HOVER, THE NR 2 ENGINE FUEL FILTER LIGHT CAME ON DURING LIFT OFF, RETURNED TO PAD. MAINTENANCE REMOVED NR 2 ENGINE FUEL FILTER PRESSURE SWITCH AND REPLACED WITH A NEW SWITCH, WORK DONE IAW MM AND GROUND RUN LEAK CHECK WAS GOOD. (K)
From FAA Service Difficulty Reports; matched by N-number and serial number. - Landing gear · tire · cutSep 25, 2004
WHILE TAXING OUT THE NOSE WHEEL WHEN FLAT. MAINTENANCE REMOVED AND REPLACED NOSE TIRE ASSY, OLD TIRE HAD CUT ON THE TREAD AREA, ALL WORK DONE IAW S-76C+ MM.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Sources
- FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 19, 2026
- NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
- FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 19, 2026
- FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026