# Aerospatiale AS350B ECUREUIL - Type: Aircraft model (FAA registry) - Registry code: 8680819 - Manufacturer (registry): AEROSPATIALE - Model: AS350B ECUREUIL - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Turbo-shaft - Seats: 8 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS H9EU](https://openairdocs.org/tcds/H9EU) (OpenAirDocs) - Holder: Airbus Helicopters - Registered aircraft: 0 - Page: https://openairdocs.org/model/aerospatiale-as350b-ecureuil Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2026-20-03](https://openairdocs.org/ad/2026-20-03): Placards and Markings · Airbus Helicopters AS350B, AS350BA, AS350B1 and 11 more. Effective Nov 5, 2026 - [AD 2026-16-01](https://openairdocs.org/ad/2026-16-01): Main rotor drive · Airbus Helicopters AS350B, AS350BA, AS350B1 and 5 more. Effective Sep 10, 2026 - [AD 2026-12-10](https://openairdocs.org/ad/2026-12-10): Equipment/Furnishings · Airbus Helicopters AS350B, AS350BA, AS350B1 and 3 more. Effective Aug 3, 2026 - [AD 2026-12-09](https://openairdocs.org/ad/2026-12-09): Time Limits/Maintenance Checks · Airbus Helicopters AS350B, AS350BA, AS350B1 and 1 more. Effective Jul 21, 2026 - [AD 2026-09-15](https://openairdocs.org/ad/2026-09-15): Tail rotor head · Airbus Helicopters AS350B, AS350BA, AS350B1 and 9 more. Effective Jul 21, 2026 - [AD 2026-12-03](https://openairdocs.org/ad/2026-12-03): Main rotor gearbox · Airbus Helicopters AS350B, AS350B1, AS350B2 and 11 more. Effective Jul 14, 2026 - [AD 2026-07-12](https://openairdocs.org/ad/2026-07-12): Main rotor transmission mount · Airbus Helicopters AS350B, AS350BA, AS350B1 and 3 more. Effective Apr 29, 2026 - [AD 2025-09-13](https://openairdocs.org/ad/2025-09-13): Doors · Airbus Helicopters AS350B, AS350BA, AS350B1 and 9 more. Effective Jul 7, 2025 - [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024 - [AD 2024-15-08](https://openairdocs.org/ad/2024-15-08): Main Rotor Blades · Airbus Helicopters AS350B, AS350BA, AS350B1 and 7 more. Effective Oct 15, 2024 - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 - [AD 2022-10-51](https://openairdocs.org/ad/2022-10-51): Flight Control System · Airbus Helicopters AS350B, AS350B1, AS350B2 and 22 more. Effective Jun 7, 2022 - [AD 2021-03-16 R1](https://openairdocs.org/ad/2021-03-16-R1): Passenger/Crew Doors · Airbus Helicopters AS350B, AS350B1, AS350B2 and 9 more. Effective Mar 24, 2022 - [AD 2022-01-01](https://openairdocs.org/ad/2022-01-01): Main Rotor System · Airbus Helicopters AS350B, AS350BA, AS350B1 and 17 more. Effective Mar 7, 2022 - [AD 2022-02-04](https://openairdocs.org/ad/2022-02-04): Hydraulic Power System Wiring · Airbus Helicopters AS350B, AS350B2, AS350B3 and 1 more. Effective Feb 25, 2022 - [AD 2021-17-17](https://openairdocs.org/ad/2021-17-17): Cabin Equipment/Furnishings · Airbus Helicopters EC135P3, EC135T3, MBB-BK 117 C-2 and 32 more. Effective Nov 22, 2021 - [AD 2021-19-09](https://openairdocs.org/ad/2021-19-09): Cabin Equipment/Furnishings · Airbus Helicopters AS355E, AS355F, AS355F1 and 6 more. Effective Nov 4, 2021 - [AD 2021-16-16](https://openairdocs.org/ad/2021-16-16): Rotorcraft Flight Control · Airbus Helicopters AS355E, AS355F, AS355F1 and 9 more. Effective Oct 13, 2021 - [AD 2021-16-11](https://openairdocs.org/ad/2021-16-11): Tail Rotor Control System · Airbus Helicopters AS355E, AS355F, AS355F1 and 9 more. Effective Oct 6, 2021 - [AD 2021-14-07](https://openairdocs.org/ad/2021-14-07): Cabin Equipment/Furnishings · Airbus Helicopters AS332C, AS332C1, AS332L and 12 more. Effective Aug 19, 2021 - [AD 2021-07-15](https://openairdocs.org/ad/2021-07-15): Tail Rotor Drive Shaft · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective May 7, 2021 - [AD 2021-05-09](https://openairdocs.org/ad/2021-05-09): Tail Rotor Control System · Airbus Helicopters AS355E, AS355F, AS355F1 and 8 more. Effective Apr 16, 2021 - [AD 2021-04-13](https://openairdocs.org/ad/2021-04-13): Main Rotor Mast Inner Race Rings · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Apr 14, 2021 - [AD 2021-04-17](https://openairdocs.org/ad/2021-04-17): Tail Rotor Blades · Airbus Helicopters AS355E, AS355F, AS355F1 and 7 more. Effective Mar 23, 2021 - [AD 2020-22-20](https://openairdocs.org/ad/2020-22-20): Main Rotor Gearbox · Airbus Helicopters AS355E, AS355F, AS355F1 and 12 more. Effective Dec 14, 2020 - [AD 2015-17-01 R1](https://openairdocs.org/ad/2015-17-01-R1): Tail Rotor · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Sep 11, 2020 - [AD 2020-02-23](https://openairdocs.org/ad/2020-02-23): Landing gear · Emergency Floats (Dart Aerospace ULC STC SR00470LA or SR00645LA). Effective Feb 28, 2020 - [AD 2019-16-16](https://openairdocs.org/ad/2019-16-16): Engine Air Intake System · Airbus Helicopters AS350B, AS350B1, AS350B2 and 2 more. Effective Sep 26, 2019 - [AD 2018-25-17](https://openairdocs.org/ad/2018-25-17): Air Conditioning System Wiring · Airbus Helicopters 206A, 206B, 206L and 13 more. Effective Jan 22, 2019 - [AD 2018-02-02](https://openairdocs.org/ad/2018-02-02): Main Gearbox Mast · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Feb 12, 2018 - [AD 2017-22-05](https://openairdocs.org/ad/2017-22-05): Hydraulic Pump (Electric/Engine), Main · Airbus Helicopters AS350B, AS350B1, AS350B2 and 5 more. Effective Dec 11, 2017 - [AD 2016-25-20](https://openairdocs.org/ad/2016-25-20): Main Rotor Drive System · Airbus Helicopters AS355E, AS355F, AS355F1 and 13 more. Effective Jan 31, 2017 - [AD 2016-05-06](https://openairdocs.org/ad/2016-05-06): Rotorcraft tailboom · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Apr 8, 2016 - [AD 2015-17-11](https://openairdocs.org/ad/2015-17-11): Main Rotor System · Airbus Helicopters AS355E, AS355F, AS355F1 and 13 more. Effective Sep 29, 2015 - [AD 2014-05-10](https://openairdocs.org/ad/2014-05-10): Tail Rotor · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective May 2, 2014 - [AD 2014-05-07](https://openairdocs.org/ad/2014-05-07): Tail Rotor Control System · Airbus Helicopters AS355E, AS355F, AS355F1 and 9 more. Effective Apr 15, 2014 - [AD 2014-04-11](https://openairdocs.org/ad/2014-04-11): Tail rotor blades · Airbus Helicopters AS355E, AS355F, AS355F1 and 8 more. Effective Apr 9, 2014 - [AD 2014-02-05](https://openairdocs.org/ad/2014-02-05): Main Rotor Control · Airbus Helicopters AS350B, AS350B1, AS350B2 and 5 more. Effective Mar 7, 2014 - [AD 2013-23-10](https://openairdocs.org/ad/2013-23-10): Fuselage Miscellaneous Structure · Airbus Helicopters AS355E, AS355F, AS355F1 and 8 more. Effective Dec 30, 2013 - [AD 2013-23-09](https://openairdocs.org/ad/2013-23-09): Doors · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Dec 27, 2013 - [AD 2013-16-03](https://openairdocs.org/ad/2013-16-03): Tail Rotor Gearbox · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Oct 22, 2013 - [AD 2013-17-01](https://openairdocs.org/ad/2013-17-01): Tail rotor control system · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Oct 9, 2013 - [AD 2013-10-51](https://openairdocs.org/ad/2013-10-51): Rotorcraft Servo System · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Jul 31, 2013 - [AD 2013-08-19](https://openairdocs.org/ad/2013-08-19): Fuselage Door Hinges · Airbus Helicopters AS355E, AS355F, AS355F1 and 10 more. Effective Jun 5, 2013 - [AD 2012-25-01](https://openairdocs.org/ad/2012-25-01): Emergency Equipment · Airbus Helicopters AS355E, AS355F, AS355F1 and 11 more. Effective Jun 5, 2013 - [AD 2012-17-03](https://openairdocs.org/ad/2012-17-03): Hydraulic Power System · Airbus Helicopters AS350B, AS350B1, AS350B2 and 3 more. Effective Oct 11, 2012 - [AD 2011-18-12](https://openairdocs.org/ad/2011-18-12): Vertical stabilizer spar/rib structure · Airbus Helicopters AS355E, AS355F, AS355F1 and 8 more. Effective Feb 8, 2012 - [AD 2011-10-12](https://openairdocs.org/ad/2011-10-12): Pinion · Airbus Helicopters AS350B, AS350B1, AS350B2 and 3 more. Effective Jun 22, 2011 - [AD 2011-11-04](https://openairdocs.org/ad/2011-11-04): Contaminated Gas · Airbus Helicopters AS355E, AS355F, AS355F1 and 12 more. Effective Jun 17, 2011 - [AD 2010-22-08](https://openairdocs.org/ad/2010-22-08): Main rotor servo-controls and tail rotor servo-controls · Airbus Helicopters AS355E, AS355F, AS355F1 and 8 more. Effective Nov 26, 2010 Historical (superseded or no longer in force): - [AD 2025-06-04](https://openairdocs.org/ad/2025-06-04) (historical): Main Rotor Gearbox · Airbus Helicopters AS350B, AS350B1, AS350B2 and 11 more. Effective May 9, 2025 - [AD 2023-01-04](https://openairdocs.org/ad/2023-01-04) (historical): Tail Rotor Head · Airbus Helicopters AS350B, AS350BA, AS350B1 and 9 more. Effective Mar 8, 2023 - [AD 2022-11-08](https://openairdocs.org/ad/2022-11-08) (historical): Electrical Power System, Aircraft Fuel System, Hydraulic Power System, Doors, Fuselage Structure, Main Rotor System, Main Rotor Drive System, Tail Rotor System, Tail Rotor Drive System, Rotorcraft Flight Control · Airbus Helicopters AS350B, AS350BA, AS350B1 and 5 more. Effective Jul 8, 2022 - [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021 - [AD 2021-05-02](https://openairdocs.org/ad/2021-05-02) (historical): Main Rotor System · Airbus Helicopters AS350B, AS350BA, AS350B1 and 12 more. Effective Apr 16, 2021 - [AD 2021-03-16](https://openairdocs.org/ad/2021-03-16) (historical): Passenger/Crew Doors · Airbus Helicopters AS355E, AS355F, AS355F1 and 9 more. Effective Mar 3, 2021 - [AD 2020-24-03](https://openairdocs.org/ad/2020-24-03) (historical): Rotorcraft Flight Control · Airbus Helicopters AS355E, AS355F, AS355F1 and 6 more. Effective Dec 16, 2020 - [AD 2018-18-12](https://openairdocs.org/ad/2018-18-12) (historical): Engine Air Intake System · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 2 more. Effective Sep 25, 2018 - [AD 2018-15-02](https://openairdocs.org/ad/2018-15-02) (historical): Tail Rotor Control System · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 8 more. Effective Aug 3, 2018 - [AD 2015-17-01](https://openairdocs.org/ad/2015-17-01) (historical): Tail Rotor · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 11 more. Effective Sep 24, 2015 - [AD 2014-07-52](https://openairdocs.org/ad/2014-07-52) (historical): Rotorcraft Tailboom · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 11 more. Effective Jun 25, 2014 - [AD 2013-21-01](https://openairdocs.org/ad/2013-21-01) (historical): Tail Rotor · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 11 more. Effective Oct 25, 2013 - [AD 2013-15-03](https://openairdocs.org/ad/2013-15-03) (historical): Hydraulic Pump, Main · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 5 more. Effective Aug 8, 2013 - [AD 2011-22-05](https://openairdocs.org/ad/2011-22-05) (historical): Tail rotor control system · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 11 more. Effective Nov 25, 2011 - [AD 2010-21-01](https://openairdocs.org/ad/2010-21-01) (historical): Fuselage Misc. Structure · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 8 more. Effective Oct 29, 2010 - [AD 2010-11-51](https://openairdocs.org/ad/2010-11-51) (historical): Tail Rotor Control System · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 9 more. Effective Sep 2, 2010 - [AD 2003-25-01](https://openairdocs.org/ad/2003-25-01) (historical): Hoist operator control unit · Airbus Helicopters AS-350B, AS-350B1, AS-350B2 and 11 more. Effective Jan 20, 2004 - [AD 2003-22-06](https://openairdocs.org/ad/2003-22-06) (historical): Tail rotor pitch control rod (control Rod) · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 10 more. Effective Dec 3, 2003 - [AD 2002-02-51](https://openairdocs.org/ad/2002-02-51) (historical): Metal bushing and the STARFLEX star arm end (arm end) · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 11 more - [AD 2001-26-53](https://openairdocs.org/ad/2001-26-53) (historical): Servocontrols · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 3 more. Effective Feb 6, 2002 - [AD 2000-10-10](https://openairdocs.org/ad/2000-10-10) (historical): Main Gearbox Suspension Bi-directional Cross-Beam · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 7 more. Effective Jun 26, 2000 - [AD 86-15-10 R2](https://openairdocs.org/ad/86-15-10-R2) (historical): Main Rotor Head Components, the Main Gearbox (MGB) Suspension Bars, and Ground Resonance Prevention System Components · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 8 more. Effective May 23, 2000 - [AD 99-24-18](https://openairdocs.org/ad/99-24-18) (historical): Tail Rotor Spider Plate Bearing · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 8 more. Effective Dec 15, 1999 - [AD 98-24-35](https://openairdocs.org/ad/98-24-35) (historical): Outboard Spherical Bearing Ball · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 9 more. Effective Dec 17, 1998 - [AD 98-14-01](https://openairdocs.org/ad/98-14-01) (historical): Cross-Beam Crack Inspection · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 7 more. Effective Aug 3, 1998 - [AD 89-21-01](https://openairdocs.org/ad/89-21-01) (historical): Main Rotor Swash Plate Bearing · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 10 more. Effective May 3, 1990 - [AD 86-15-10 R1](https://openairdocs.org/ad/86-15-10-R1) (historical): Main Rotor Arms & Gearbox Bars · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 10 more. Effective Mar 22, 1990 - [AD 85-14-06 R1](https://openairdocs.org/ad/85-14-06-R1) (historical): Fuselage Tailboom Interface · Eurocopter France AS-350B, AS-350B1, AS-350B2 and 10 more. Effective Sep 12, 1985 - [AD 82-13-05 R1](https://openairdocs.org/ad/82-13-05-R1) (historical): Upper Vertical Fin · Eurocopter France AS-350B, AS-350C, AS-350D and 3 more. Effective Mar 1, 1983 - [AD 82-20-05](https://openairdocs.org/ad/82-20-05) (historical): Tail Rotor Drive Shaft · Airbus Helicopters AS-350B, AS-350C, AS-350D and 3 more. Effective Oct 15, 1982 All 118: https://openairdocs.org/model/aerospatiale-as350b-ecureuil/ads.md ## Information bulletins (advisory) (7) - [SAIB SW-17-23R2](https://openairdocs.org/saib/SW-17-23R2): Fuel System. Issued Jul 15, 2019 - [SAIB SW-17-23R1](https://openairdocs.org/saib/SW-17-23R1) (historical): Fuel System. Issued Mar 2, 2018 - [SAIB SW-15-20](https://openairdocs.org/saib/SW-15-20): Air Conditioning System Wiring. Issued Aug 13, 2015 - [SAIB SW-15-04](https://openairdocs.org/saib/SW-15-04): Cabin Ventilation Air Scoop Draining. Issued Nov 25, 2014 - [SAIB SW-11-07](https://openairdocs.org/saib/SW-11-07): Star Flex Arm Failures on Eurocopter France Model AS350, AS355, and EC130 Helicopters. Issued Dec 20, 2010 - [SAIB SW-07-22R1](https://openairdocs.org/saib/SW-07-22R1): Serrated lock washers. Issued Apr 3, 2007 - [SAIB SW-04-35](https://openairdocs.org/saib/SW-04-35): . Issued Dec 19, 2003 ## Registered aircraft None registered with this model now. ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20150712011799I](https://openairdocs.org/incident/20150712011799I), Jul 12, 2015: Aerospatiale AS350B ECUREUIL (N498PT), Bridgeport, CA, Minor damage. During / hover landing while setting down the firefighting bucket a sleeping bag flew up into the tail rotor. ## STCs that may be installed (OpenAirDocs) (477, first 50) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SR00653NY](https://openairdocs.org/stc/SR00653NY): nstallation and configuration of Maintenance Step on Transmission Deck Cowling. Airbus Helicopters Canada Limited - [STC SH8154SW-D](https://openairdocs.org/stc/SH8154SW-D): Installation of a steerable landing light. Airbus Helicopters Inc - [STC SR00643DE](https://openairdocs.org/stc/SR00643DE): Installation of a vapor cycle cabin airconditioning system. Air Comm Corporation - [STC SR12433IB](https://openairdocs.org/stc/SR12433IB): Fabrication of equipment must be in accordance with the applicable Manufacturing Procedure document as shown on the attached FAA AML No. SR12433IB. Lake Central Air Services - [STC SH4716NM](https://openairdocs.org/stc/SH4716NM): Redesign and relocation of cargo door hinges and relocation of cargo door latch. Turbolyft USA Corporation - [STC SH4791NM](https://openairdocs.org/stc/SH4791NM): Installation of a Geneva Aviation Starter Generator,. Turbolyft USA Corporation - [STC SH4929NM](https://openairdocs.org/stc/SH4929NM): Installation of high-volume air blower assembly. Turbolyft USA Corporation - [STC SH4983NM](https://openairdocs.org/stc/SH4983NM): Installation of 2nd oil cooler. Turbolyft USA Corporation - [STC SH5187NM](https://openairdocs.org/stc/SH5187NM): Installation of a video system. Turbolyft USA Corporation - [STC SR00219SE](https://openairdocs.org/stc/SR00219SE): Installation of a color video camera on either the left, right, or both upper outboard surfaces of the horizontal stabilizer. Turbolyft USA Corporation - [STC SR00222SE](https://openairdocs.org/stc/SR00222SE): Installation of a supplemental avionics console between the front seats. Turbolyft USA Corporation - [STC SR00242SE](https://openairdocs.org/stc/SR00242SE): Fabrication and Installation of a new instrument panel and pedestal. Turbolyft USA Corporation - [STC SR00326SE](https://openairdocs.org/stc/SR00326SE): Installation of Geneva Aviation Microwave System. Turbolyft USA Corporation - [STC SR00361SE](https://openairdocs.org/stc/SR00361SE): Installation of baggage compartment utility rack. Turbolyft USA Corporation - [STC SR00388SE](https://openairdocs.org/stc/SR00388SE): Fabrication and Installation of a rear communication console. Turbolyft USA Corporation - [STC SR00474SE](https://openairdocs.org/stc/SR00474SE): Installation of a modular equipment rack in the left side only, right side only, or both side cargo compartments. Turbolyft USA Corporation - [STC SR00643SE](https://openairdocs.org/stc/SR00643SE): Installation of Geneva Aviation Video System. Turbolyft USA Corporation - [STC SR04464NY](https://openairdocs.org/stc/SR04464NY): Installation of the iPad Mount. Avio Design Group Inc - [STC SR00407NY](https://openairdocs.org/stc/SR00407NY): Installation of litter kit fixed provisions P/N 350-200034-01 or 350-200034-02, and detachable provisions P/N 350-200034-03. Airbus Helicopters Canada Limited - [STC SH4747NM](https://openairdocs.org/stc/SH4747NM): Fabrication and Installation of Electrical System Upgrade. AEM USA Inc - [STC SR00521SE](https://openairdocs.org/stc/SR00521SE): Installation of Geneva Aviation Audio System. AEM USA Inc - [STC SR02301SE](https://openairdocs.org/stc/SR02301SE): Installation of Geneva Aviation 28 - 14 VDC Power Converter. AEM USA Inc - [STC SR02445SE](https://openairdocs.org/stc/SR02445SE): Installation of P178 Failsafe Audio Mixer. AEM USA Inc - [STC SR03029NY](https://openairdocs.org/stc/SR03029NY): The installation of a SkyTrac ISAT-200 Airborne Position/Data Communicator upgrade. SkyTrac Systems Ltd - [STC SR12293NY](https://openairdocs.org/stc/SR12293NY): Installation of a FreeFlight Systems RA-4500 MKII 5G Tolerant Radar Altimeter. FreeFlight Systems Ltd - [STC SR11808LA](https://openairdocs.org/stc/SR11808LA): Installation of tail rotor assemblies, P/N 350TR1000-101/301. Van Horn Aviation LLC - [STC SR12146IB](https://openairdocs.org/stc/SR12146IB): Installation of an AEM MTP136D Panel Mount FM Transceiver. Anodyne Electronics Manufacturing Corporation - [STC SR00307DE](https://openairdocs.org/stc/SR00307DE): Installation of Aft Jump Seat. Air Methods LLC - [STC SR00308DE](https://openairdocs.org/stc/SR00308DE): Installation of Composite Interior. Air Methods LLC - [STC SH4343SW-D](https://openairdocs.org/stc/SH4343SW-D): Installation of strobe anti-collision light installation and/or supplemental strobe light. Airbus Helicopters Inc - [STC SR04644CH](https://openairdocs.org/stc/SR04644CH): Replacement of existing main ship battery with Lithium Ion Battery and installation of Battery System Annunciator. Airwolf Aerospace LLC - [STC SR12092IB](https://openairdocs.org/stc/SR12092IB): Manufacturing and Installation of Cargo Hold Nets. ICARUS AERO INC - [STC SR12020IB](https://openairdocs.org/stc/SR12020IB): Installation of External Mirror System 350P025 on Right Hand Side (RHS) and/or Left Hand Side (LHS). BOGGI AERONAUTICS S.R.L - [STC SH4016SW-D](https://openairdocs.org/stc/SH4016SW-D): Installation of Hourmeter. Airbus Helicopters Inc - [STC SR00115IB](https://openairdocs.org/stc/SR00115IB): Installation of the Advanced Lithium Ion Battery Replacement of Ni-Cad Battery. Vertical Flight Solutions Inc - [STC SR04711NY](https://openairdocs.org/stc/SR04711NY): Replacement of Luminator LS400 LED searchlight (steerable landing light). Sterling Helicopter - [STC SR04641CH](https://openairdocs.org/stc/SR04641CH): Installation of a Helitak FT1400 Liquid Dispensing System. U.S. Technical Consultants Inc - [STC SR11839IB](https://openairdocs.org/stc/SR11839IB): Manufacture and Installation of Seat Refurbishment. Icarus Aero Inc - [STC SR00853DE](https://openairdocs.org/stc/SR00853DE): Installation of Fibrotek survey stinger. Upper Limit Aviation - [STC SR04548CH](https://openairdocs.org/stc/SR04548CH): Installation of Appareo Systems AIRS-400 Flight Monitoring System. Appareo Systems - [STC SR00425SE](https://openairdocs.org/stc/SR00425SE): Installation of a satellite phone. Turbolyft USA Corporation - [STC SR00184IB](https://openairdocs.org/stc/SR00184IB): Installation of External Cargo Basket and Boarding Step. Boost Human External Cargo Systems Inc - [STC SR00182IB](https://openairdocs.org/stc/SR00182IB): Installation of the Avidyne Integrated Flight Display (IFD) Navigator(s). Horizon Design Services Ltd - [STC SR02345LA](https://openairdocs.org/stc/SR02345LA): Installation of HeliSAS stability augmentation system and autopilot. S-TEC Corporation - [STC SR04637CH](https://openairdocs.org/stc/SR04637CH): Replacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control Panel. Airwolf Aerospace LLC - [STC SR00059DE](https://openairdocs.org/stc/SR00059DE): Installation of infrared imaging system. Dart Aerospace Company - [STC SR04138NY](https://openairdocs.org/stc/SR04138NY): Installation of Replacement Heater Lines. Boost Human External Cargo Systems Inc - [STC SH2506SO](https://openairdocs.org/stc/SH2506SO): Installation of a camera mount and photographer's seat. Ephraim Nowak - [STC SR00046DE](https://openairdocs.org/stc/SR00046DE): Installation of external pod and camera mount. Dart Aerospace USA Inc - [STC SR00155IB](https://openairdocs.org/stc/SR00155IB): Installation of Video transmission System, to include a cabin rack, a cabin display mount and two antenna holders on landing skids. PROTOPLANE SPECIAL MISSION AIRCRAFT All 477: https://openairdocs.org/model/aerospatiale-as350b-ecureuil/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Aerospatiale AS350B](https://openairdocs.org/model/aerospatiale-as350b): 13 registered aircraft, registry code 8680800 - [S N I A S AS-350B ECUREUIL](https://openairdocs.org/model/s-n-i-a-s-as-350b-ecureuil): 5 registered aircraft, registry code 8680801 - [Eurocopter AS350B](https://openairdocs.org/model/eurocopter-as350b): 1 registered aircraft, registry code 8680942 - [Eurocopter France AS350B](https://openairdocs.org/model/eurocopter-france-as350b): 1 registered aircraft, registry code 8680961 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.