# N44DS: 2003 Eurocopter EC 155B

- Status: Valid registration
- Airframe: [Eurocopter EC 155B](https://openairdocs.org/model/eurocopter-ec-155b) (registry code 8681000, 15 seats)
- Engine: [Turbomeca ARRIEL series](https://openairdocs.org/engine/turbomeca-arriel-series) (registry code 60031)
- Data sheets: [TCDS H10EU](https://openairdocs.org/tcds/H10EU) (Airbus Helicopters) (OpenAirDocs)
- Serial number: 6615
- Year built: 2003
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, transport
- Airworthiness date: May 9, 2003
- Certificate issued: July 6, 2018
- Expires: July 31, 2028
- Mode S code: A548A0
- Registered owner: [Ds Air II LLC](https://openairdocs.org/faa-owner/DS%20AIR%20II%20LLC)
- Location: [Carrollton, VA](https://openairdocs.org/faa-place/VA/Carrollton)
- Owner type: LLC
- Owner's area on the map: 36.9590° N, 76.5243° W: Placed by OpenAirDocs at the center of ZIP code 23314, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=44DS
- Page: https://openairdocs.org/aircraft/N44DS

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Turbomeca ARRIEL model are included.

## ADs that may apply (OpenAirDocs): 110 in force

### Matched by airframe (Eurocopter EC 155B)

- [AD 2026-16-04](https://openairdocs.org/ad/2026-16-04): Time Limits/Maintenance Checks · Airbus Helicopters EC 155 B and EC 155 B1. Effective Sep 17, 2026
- [AD 2025-24-01](https://openairdocs.org/ad/2025-24-01): Passenger Compartment Windows, Door Windows · Airbus Helicopters EC155B1 and EC 155B. Effective Jan 12, 2026
- [AD 2025-14-07](https://openairdocs.org/ad/2025-14-07): Fire Detection System · Airbus Helicopters AS-365N3, EC 155B and EC155B1. Effective Aug 26, 2025
- [AD 2025-13-09](https://openairdocs.org/ad/2025-13-09): Main rotor control · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Aug 14, 2025
- [AD 2025-04-09](https://openairdocs.org/ad/2025-04-09): Bulkhead/Firewall · Airbus Helicopters EC 155B, EC155B1, SA-365N and 3 more. Effective Apr 11, 2025
- [AD 2025-03-02](https://openairdocs.org/ad/2025-03-02): Flight compartment equipment · Airbus Helicopters AS332C, AS332C1, AS332L and 15 more. Effective Mar 7, 2025
- [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 2022-22-02](https://openairdocs.org/ad/2022-22-02): Placards and Markings, Passenger/Crew Doors · Airbus Helicopters SA-365N, SA-365N1, AS-365N2 and 3 more. Effective Dec 21, 2022
- [AD 2022-13-14](https://openairdocs.org/ad/2022-13-14): Tail Rotor Drive System · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 2 more. Effective Aug 15, 2022
- [AD 2022-11-18](https://openairdocs.org/ad/2022-11-18): Engine Cowling System · Airbus Helicopters AS355E, AS355F, AS355F1 and 7 more. Effective Jul 13, 2022
- [AD 2022-09-04](https://openairdocs.org/ad/2022-09-04): Tail Rotor Drive System · Airbus Helicopters SA-365N1, AS-365N2, AS-365N3 and 3 more. Effective May 31, 2022
- [AD 2022-08-02](https://openairdocs.org/ad/2022-08-02): Engine Controls · Airbus Helicopters EC 155B and EC155B1. Effective May 17, 2022
- [AD 2022-01-03](https://openairdocs.org/ad/2022-01-03): Fire Bottle, Portable · Airbus Helicopters AS332C, AS332C1, AS332L and 35 more. Effective Mar 7, 2022
- [AD 2021-26-18](https://openairdocs.org/ad/2021-26-18): Tail Rotor Drive System · Airbus Helicopters AS-365N2, AS-365N3, SA-365N1 and 5 more. Effective Feb 9, 2022
- [AD 2021-22-16](https://openairdocs.org/ad/2021-22-16): Main Rotor Drive System · Airbus Helicopters EC155B1 and EC 155B. Effective Jan 3, 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 2021-22-07](https://openairdocs.org/ad/2021-22-07): Fire Bottle, Portable · Airbus A319-111, A319-112, A319-113 and 127 more. Effective Nov 18, 2021
- [AD 2021-18-06](https://openairdocs.org/ad/2021-18-06): Engine Cowling System · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Sep 10, 2021
- [AD 2021-07-07](https://openairdocs.org/ad/2021-07-07): Rotorcraft flight control · Airbus Helicopters EC 155B and EC155B1. Effective May 10, 2021
- [AD 2021-05-06](https://openairdocs.org/ad/2021-05-06): Window/Windshield System · Airbus Helicopters AS332C, AS332C1, AS332L and 6 more. Effective Apr 19, 2021
- [AD 2021-02-09](https://openairdocs.org/ad/2021-02-09): Main Rotor Gearbox · Airbus Helicopters EC 155B and EC155B1. Effective Apr 15, 2021
- [AD 2021-02-08](https://openairdocs.org/ad/2021-02-08): Fuselage Structure · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 4 more. Effective Apr 15, 2021
- [AD 2021-02-01](https://openairdocs.org/ad/2021-02-01): Placards and markings · Airbus Helicopters AS-365N2, AS-365N3, AS332C and 7 more. Effective Apr 6, 2021
- [AD 2021-03-06](https://openairdocs.org/ad/2021-03-06): Main Rotor Gearbox · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Apr 1, 2021
- [AD 2020-21-15](https://openairdocs.org/ad/2020-21-15): Tail Rotor Gearbox · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 2 more. Effective Dec 7, 2020
- [AD 2020-20-14](https://openairdocs.org/ad/2020-20-14): Rotorcraft Servo System · Airbus Helicopters AS-365N2, AS-365N3, AS355F and 11 more. Effective Oct 23, 2020
- [AD 2020-15-01](https://openairdocs.org/ad/2020-15-01): Attitude and Direction Data System · Airbus Helicopters EC 155B and EC155B1. Effective Aug 17, 2020
- [AD 2016-05-10](https://openairdocs.org/ad/2016-05-10): Life Raft · Airbus Helicopters AS-365N3, EC 155B and EC155B1. Effective Mar 28, 2016
- [AD 2015-11-06](https://openairdocs.org/ad/2015-11-06): Main Rotor Control · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 4 more. Effective Jul 13, 2015
- [AD 2015-10-05](https://openairdocs.org/ad/2015-10-05): Equipment/Furnishing · Airbus Helicopters AS-365N3, EC 155B and EC155B1. Effective Jun 5, 2015
- [AD 2014-02-04](https://openairdocs.org/ad/2014-02-04): Vertical Stabilizer Structure · Airbus Helicopters EC 155B and EC155B1. Effective Mar 7, 2014
- [AD 2013-19-07](https://openairdocs.org/ad/2013-19-07): JASC Code: 2510: Flight Compartment Equipment · Airbus Helicopters AS-365N2, AS-365N3, AS332C and 8 more. Effective Nov 6, 2013
- [AD 2013-12-04](https://openairdocs.org/ad/2013-12-04): Fuel storage · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 4 more. Effective Aug 2, 2013
- [AD 2013-03-02](https://openairdocs.org/ad/2013-03-02): Tail Rotor Head · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 2 more. Effective Feb 27, 2013
- [AD 2012-26-10](https://openairdocs.org/ad/2012-26-10): Main Rotor Gearbox · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 7 more. Effective Feb 13, 2013
- [AD 2012-17-02](https://openairdocs.org/ad/2012-17-02): Cracked main rotor mast nut · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 4 more. Effective Oct 10, 2012
- [AD 2012-16-02](https://openairdocs.org/ad/2012-16-02): Cabin Equipment/Furnishings · Airbus Helicopters EC 155B and EC155B1. Effective Sep 26, 2012
- [AD 2010-20-20](https://openairdocs.org/ad/2010-20-20): MGB planet gear carrier · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 8 more. Effective Nov 12, 2010
- [AD 2010-19-05](https://openairdocs.org/ad/2010-19-05): Tail rotor · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 2 more. Effective Oct 27, 2010
- [AD 2010-06-07](https://openairdocs.org/ad/2010-06-07): Rotorcraft Flight Control · Airbus Helicopters AS-365N2, AS-365N3, AS332C and 14 more. Effective Apr 21, 2010
- [AD 2009-22-04](https://openairdocs.org/ad/2009-22-04): Freezing of the route display on the navigation display (ND) in the Sector mode · Airbus Helicopters EC 155B and EC155B1. Effective Nov 12, 2009
- [AD 2009-06-01](https://openairdocs.org/ad/2009-06-01): SUMMARY: Short circuit generated sufficient heat to ignite the paint on the cooler support cowling near the hoist cut-off connector "24 Delta.'' · Airbus Helicopters EC 155B and EC155B1. Effective Mar 31, 2009
- [AD 2004-16-15 R1](https://openairdocs.org/ad/2004-16-15-R1): Main gearbox (MGB) base plate · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 4 more. Effective Aug 30, 2006
- [AD 2006-06-01](https://openairdocs.org/ad/2006-06-01): Electrical cable bundle · Airbus Helicopters EC 155B and EC155B1. Effective Apr 18, 2006
- [AD 2005-13-23](https://openairdocs.org/ad/2005-13-23): Hydraulic brake hose (hose) · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Jul 29, 2005
- [AD 2004-15-11](https://openairdocs.org/ad/2004-15-11): Auxiliary System Unit (ASU) Board · Airbus Helicopters EC 155B and EC155B1. Effective Sep 3, 2004
- [AD 2004-12-06](https://openairdocs.org/ad/2004-12-06): Main rotor blade (blade) · Airbus Helicopters EC 155B and EC155B1. Effective Jun 29, 2004
- [AD 2004-05-29](https://openairdocs.org/ad/2004-05-29): Tail rotor blade (blade) -to-torsion bar attachment · Airbus Helicopters EC 155B. Effective Apr 19, 2004
- [AD 2003-20-12](https://openairdocs.org/ad/2003-20-12): Siren Cargo Hook Locking Catch · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Nov 18, 2003
- [AD 2003-19-01](https://openairdocs.org/ad/2003-19-01): Fenestron pitch change control rod (control rod) · Airbus Helicopters AS-365N3 and EC 155B. Effective Oct 23, 2003

### Matched by engine (Turbomeca ARRIEL series)

- [AD 2026-15-03](https://openairdocs.org/ad/2026-15-03): Turbine Section · Safran Helicopter Engines Arriel 2E. Effective Sep 3, 2026
- [AD 2023-22-03](https://openairdocs.org/ad/2023-22-03): Turbine section · Safran Helicopter Engines Arriel 2D and Arriel 2E. Effective Dec 26, 2023
- [AD 2023-13-14](https://openairdocs.org/ad/2023-13-14): Engine · Safran Helicopter Engines Arriel 1C, Arriel 1C1, Arriel 1C2 and 1 more. Effective Jul 25, 2023
- [AD 2021-13-08](https://openairdocs.org/ad/2021-13-08): Fuel Control/Turbine Engines · Safran Helicopter Engines Arriel 2C and Arriel 2S1. Effective Aug 19, 2021
- [AD 2021-13-03](https://openairdocs.org/ad/2021-13-03): Fuel Control/Turbine Engines · Safran Helicopter Engines Arriel 2B, Arriel 2B1, Arriel 2C and 4 more. Effective Aug 13, 2021
- [AD 2021-05-08](https://openairdocs.org/ad/2021-05-08): Engine BMEP/Torque Indicating · Safran Helicopter Engines Arriel 2C, Arriel 2C1, Arriel 2S1 and 1 more. Effective Apr 15, 2021
- [AD 2021-05-22](https://openairdocs.org/ad/2021-05-22): Turbine Section · Turbomeca Arriel 1B, Arriel 1C, Arriel 1C2 and 3 more. Effective Mar 22, 2021
- [AD 2018-12-01](https://openairdocs.org/ad/2018-12-01): Engine Fuel and Control · Safran Helicopter Engines Arriel 2B and Arriel 2B1. Effective Sep 12, 2018
- [AD 2018-10-01](https://openairdocs.org/ad/2018-10-01): Accessory Gearboxes · Safran Helicopter Engines Arriel 2E. Effective Jun 11, 2018
- [AD 2017-15-07](https://openairdocs.org/ad/2017-15-07): Fuel Control/Turbine Engines · Safran Helicopter Engines Arriel 1A1, Arriel 1A2, Arriel 1B and 9 more. Effective Aug 8, 2017
- [AD 2017-05-08](https://openairdocs.org/ad/2017-05-08): Failure of the HMU · Safran Helicopter Engines Arriel 2B. Effective Apr 13, 2017
- [AD 2016-25-13](https://openairdocs.org/ad/2016-25-13): Engine accessory gearbox (AGB) · Safran Helicopter Engines Arriel 2B, Arriel 2B1, Arriel 2C and 6 more. Effective Feb 3, 2017
- [AD 2016-22-10](https://openairdocs.org/ad/2016-22-10): Centrifugal impeller · Turbomeca Arriel 1, Arriel 1A, Arriel 1A1 and 13 more. Effective Dec 6, 2016
- [AD 2016-11-09](https://openairdocs.org/ad/2016-11-09): Divergent rubbing between the piston shaft small diameter labyrinth and the rear bearing support · Turbomeca Arriel 1D and Arriel 1D1. Effective Jul 5, 2016
- [AD 2016-08-16](https://openairdocs.org/ad/2016-08-16): Constant delta-pressure (delta-P) diaphragm of the fuel metering valve · Turbomeca Arriel 2E. Effective May 25, 2016
- [AD 2016-04-14](https://openairdocs.org/ad/2016-04-14): Tachometer box · Turbomeca Arriel 1E2. Effective Apr 1, 2016
- [AD 2016-03-02](https://openairdocs.org/ad/2016-03-02): Torque conformation box (TCB) · Turbomeca Arriel 2C, Arriel 2C1, Arriel 2C2 and 2 more. Effective Mar 15, 2016
- [AD 2015-13-04](https://openairdocs.org/ad/2015-13-04): Engine accessory gearbox (AGB) · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 16 more. Effective Sep 1, 2015
- [AD 2014-12-05](https://openairdocs.org/ad/2014-12-05): HMU drive gear shaft · Turbomeca Arriel 2B, Arriel 2B1, Arriel 2C and 4 more. Effective Aug 4, 2014
- [AD 2014-07-06](https://openairdocs.org/ad/2014-07-06): Hydromechanical metering unit · Turbomeca Arriel 2B1. Effective May 15, 2014
- [AD 2013-24-05](https://openairdocs.org/ad/2013-24-05): Free turbine module · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 9 more. Effective Jan 28, 2014
- [AD 2013-22-22](https://openairdocs.org/ad/2013-22-22): Hydromechanical metering unit (HMU) · Turbomeca Arriel 2D. Effective Dec 20, 2013
- [AD 2013-08-22](https://openairdocs.org/ad/2013-08-22): Tachometer's unit cycle-counting feature · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 9 more. Effective May 28, 2013
- [AD 2012-27-02](https://openairdocs.org/ad/2012-27-02): High gas generator speed (NG) rating vibration check · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 9 more. Effective Feb 14, 2013
- [AD 2012-24-03](https://openairdocs.org/ad/2012-24-03): Gas generator rotating assembly · Turbomeca Arriel 1A, Arriel 1A1, Arriel 1A2 and 10 more. Effective Jan 7, 2013
- [AD 2012-23-12](https://openairdocs.org/ad/2012-23-12): Fuel control units (FCUs) · Turbomeca Arriel 1E2, Arriel 1S and Arriel 1S1. Effective Jan 7, 2013
- [AD 2012-18-18](https://openairdocs.org/ad/2012-18-18): Gas generator (GG) turbine blade · Turbomeca Arriel 2B, Arriel 2B1, Arriel 2C2 and 1 more. Effective Oct 24, 2012
- [AD 2012-12-20](https://openairdocs.org/ad/2012-12-20): Digital engine control units · Turbomeca Arriel 2C1, Arriel 2C2 and Arriel 2S2. Effective Jul 26, 2012
- [AD 2012-08-18](https://openairdocs.org/ad/2012-08-18): PT Blade Rupture · Turbomeca Arriel 2B and Arriel 2B1. Effective May 30, 2012
- [AD 2011-27-01](https://openairdocs.org/ad/2011-27-01): 2nd stage Nozzle Guide Vanes · Turbomeca Arriel 1B. Effective Jan 27, 2012
- [AD 2010-19-06 R1](https://openairdocs.org/ad/2010-19-06-R1): Turbine disc · Turbomeca Arriel 1A, Arriel 1A1, Arriel 1B and 6 more. Effective Jan 17, 2012
- [AD 2011-24-07](https://openairdocs.org/ad/2011-24-07): Hydromechanical units (HMUs) · Turbomeca Arriel 2B. Effective Dec 14, 2011
- [AD 2011-05-08](https://openairdocs.org/ad/2011-05-08): Fuel ejector · Turbomeca Arriel 1E2, Arriel 1S and Arriel 1S1. Effective Mar 9, 2011
- [AD 2009-09-03 R1](https://openairdocs.org/ad/2009-09-03-R1): Uncommanded in-flight engine shutdown · Turbomeca Arriel 2B and Arriel 2B1. Effective Nov 1, 2010
- [AD 2010-20-05](https://openairdocs.org/ad/2010-20-05): Engines with modification TU 132 · Turbomeca Arriel 2B. Effective Oct 12, 2010
- [AD 2010-10-09](https://openairdocs.org/ad/2010-10-09): 2nd stage turbine blades · Turbomeca Arriel 1B, Arriel 1D, Arriel 1D1 and 1 more. Effective Jun 21, 2010
- [AD 2009-08-08 R1](https://openairdocs.org/ad/2009-08-08-R1): PT Blades · Turbomeca Arriel 1B, Arriel 1D, Arriel 1D1 and 2 more. Effective May 7, 2010
- [AD 2010-04-07](https://openairdocs.org/ad/2010-04-07): Engine · Turbomeca Arriel 2S1. Effective Mar 23, 2010
- [AD 2010-02-01](https://openairdocs.org/ad/2010-02-01): Reduction Gear Box Intermediate Pinion · Turbomeca Arriel 1B, Arriel 1D and Arriel 1D1. Effective Feb 18, 2010
- [AD 2009-26-07](https://openairdocs.org/ad/2009-26-07): Reduction gearboxes (module M05) · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 9 more. Effective Jan 12, 2010
- [AD 2009-01-11](https://openairdocs.org/ad/2009-01-11): Hydro Mechanical Unit (HMU) low fuel pressure switch · Turbomeca Arriel 2B and Arriel 2B1. Effective Feb 27, 2009
- [AD 2007-24-10](https://openairdocs.org/ad/2007-24-10): HP/LP fuel pump · Turbomeca Arriel 2S1 and Arriel 2S2. Effective Dec 14, 2007
- [AD 2007-10-06](https://openairdocs.org/ad/2007-10-06): Cases of flameout · Turbomeca Arriel 2B1. Effective May 29, 2007
- [AD 2007-02-17](https://openairdocs.org/ad/2007-02-17): Fuel leak at the level of start electro valve · Turbomeca Arriel 1A, Arriel 1A1, Arriel 1A2 and 12 more. Effective Mar 2, 2007
- [AD 2006-06-17](https://openairdocs.org/ad/2006-06-17): 2nd stage nozzle guide vanes (NGV2) · Turbomeca Arriel 1B, Arriel 1D and Arriel 1D1. Effective Apr 27, 2006
- [AD 2005-25-13](https://openairdocs.org/ad/2005-25-13): Tree turbine shield · Turbomeca Arriel 2B and Arriel 2B1. Effective Dec 28, 2005
- [AD 2003-16-03](https://openairdocs.org/ad/2003-16-03): Second Stage Turbine Disk · Turbomeca Arriel 1A, Arriel 1A1, Arriel 1A2 and 10 more. Effective Sep 12, 2003
- [AD 2003-11-08](https://openairdocs.org/ad/2003-11-08): 2nd stage gas generator · Turbomeca Arriel 1B, Arriel 1D and Arriel 1D1. Effective Jul 3, 2003
- [AD 2003-03-12](https://openairdocs.org/ad/2003-03-12): Bleed Valve · Turbomeca Arriel 1A2, Arriel 1C, Arriel 1C1 and 12 more. Effective Mar 7, 2003
- [AD 2002-16-25](https://openairdocs.org/ad/2002-16-25): Fuel pumps · Turbomeca Arriel 2B, Arriel 2C and Arriel 2S1. Effective Sep 26, 2002

### Historical (superseded or no longer in force)

- [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 2021-11-03](https://openairdocs.org/ad/2021-11-03) (historical): Engine Cowling System · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Jul 15, 2021
- [AD 2021-05-05](https://openairdocs.org/ad/2021-05-05) (historical): Tail Rotor · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Apr 16, 2021
- [AD 2020-21-01](https://openairdocs.org/ad/2020-21-01) (historical): Tail Rotor Drive System · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 2 more. Effective Nov 12, 2020
- [AD 2018-19-01](https://openairdocs.org/ad/2018-19-01) (historical): Rotorcraft tail boom · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Oct 22, 2018
- [AD 2016-23-05](https://openairdocs.org/ad/2016-23-05) (historical): Tail Rotor Gearbox · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Dec 12, 2016
- [AD 2015-26-01](https://openairdocs.org/ad/2015-26-01) (historical): Placards and Markings · Airbus Helicopters AS-365N2, AS-365N3, AS332C1 and 5 more. Effective Jan 26, 2016
- [AD 2013-18-01](https://openairdocs.org/ad/2013-18-01) (historical): Main Rotor Control · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 4 more. Effective Oct 18, 2013
- [AD 2012-19-09](https://openairdocs.org/ad/2012-19-09) (historical): Tail Rotor Head · Eurocopter France AS-365N2, AS-365N3, EC 155B and 2 more. Effective Oct 10, 2012
- [AD 2007-25-08](https://openairdocs.org/ad/2007-25-08) (historical): T/R gearbox (TGB) · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective Jan 14, 2008
- [AD 2006-09-10](https://openairdocs.org/ad/2006-09-10) (historical): Pitch control rod assembly double bearing (bearing) · Airbus Helicopters AS-365N2, AS-365N3, EC 155B and 3 more. Effective May 18, 2006
- [AD 2005-03-09](https://openairdocs.org/ad/2005-03-09) (historical): Main gearbox (MGB) planet gear · Eurocopter France AS-365N2, AS-365N3, EC 155B and 8 more. Effective Mar 1, 2005
- [AD 2004-16-15](https://openairdocs.org/ad/2004-16-15) (historical): Main gearbox (MGB) · Eurocopter France AS-365N2, AS-365N3, EC 155B and 4 more. Effective Sep 3, 2004
- [AD 2003-18-03](https://openairdocs.org/ad/2003-18-03) (historical): Hydraulic brake hose (hose) · Eurocopter France AS-365N2, AS-365N3, EC 155B and 2 more. Effective Oct 14, 2003
- [AD 2001-13-04](https://openairdocs.org/ad/2001-13-04) (historical): Cabin Sliding Door · Eurocopter France EC 155B. Effective Jul 23, 2001
- [AD 2023-01-12](https://openairdocs.org/ad/2023-01-12) (historical): Engine (Turbine/Turboprop) · Safran Helicopter Engines Arriel 1C, Arriel 1C1 and Arriel 1C2. Effective Feb 6, 2023
- [AD 2021-08-02](https://openairdocs.org/ad/2021-08-02) (historical): Turbine Section · Safran Helicopter Engines Arriel 2D and Arriel 2E. Effective Jun 21, 2021
- [AD 2017-04-51](https://openairdocs.org/ad/2017-04-51) (historical): Fuel Control/ Turbine Engines · Safran Helicopter Engines Arriel 1A1, Arriel 1A2, Arriel 1B and 9 more. Effective Mar 30, 2017
- [AD 2016-04-12](https://openairdocs.org/ad/2016-04-12) (historical): Engine accessory gearbox (AGB) · Turbomeca Arriel 2B, Arriel 2B1, Arriel 2C and 6 more. Effective Apr 14, 2016
- [AD 2014-19-05](https://openairdocs.org/ad/2014-19-05) (historical): Engine accessory gearbox (AGB) · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 16 more. Effective Nov 5, 2014
- [AD 2013-01-07](https://openairdocs.org/ad/2013-01-07) (historical): Hydro-mechanical metering unit (HMU) · Turbomeca Arriel 2D. Effective Mar 7, 2013
- [AD 2012-03-11](https://openairdocs.org/ad/2012-03-11) (historical): High-pressure/low-pressure (HP/LP) pump hydro-mechanical metering units  
 (HMUs) · Turbomeca Arriel 2B and Arriel 2B1. Effective Mar 20, 2012
- [AD 2011-13-05](https://openairdocs.org/ad/2011-13-05) (historical): Gas Generator (GG) Turbine Blade · Turbomeca Arriel 2B and Arriel 2B1. Effective Aug 12, 2011
- [AD 2011-05-51](https://openairdocs.org/ad/2011-05-51) (historical): Low-pressure fuel system ejectors · Turbomeca Arriel 1E2, Arriel 1S and Arriel 1S1
- [AD 2010-19-06](https://openairdocs.org/ad/2010-19-06) (historical): Gas generator · Turbomeca Arriel 1A, Arriel 1A1, Arriel 1B and 6 more. Effective Oct 6, 2010
- [AD 2007-19-09 R1](https://openairdocs.org/ad/2007-19-09-R1) (historical): Pressure relief valve · Turbomeca Arriel 2B1. Effective Jul 7, 2010
- [AD 2010-03-06](https://openairdocs.org/ad/2010-03-06) (historical): Fuel pump · Turbomeca Arriel 2B and Arriel 2B1. Effective Mar 11, 2010
- [AD 2009-12-51](https://openairdocs.org/ad/2009-12-51) (historical): Gearboxes (module M05) · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 9 more. Effective Jul 15, 2009
- [AD 2009-09-03](https://openairdocs.org/ad/2009-09-03) (historical): Turbine blade · Turbomeca Arriel 2B and Arriel 2B1. Effective Jun 1, 2009
- [AD 2009-08-08](https://openairdocs.org/ad/2009-08-08) (historical): Power turbine blades · Turbomeca Arriel 1B, Arriel 1D and Arriel 1D1. Effective Apr 29, 2009
- [AD 2009-03-04](https://openairdocs.org/ad/2009-03-04) (historical): Red disk plug · Turbomeca Arriel 1E2, Arriel 1S and Arriel 1S1. Effective Mar 27, 2009
- [AD 2008-07-01](https://openairdocs.org/ad/2008-07-01) (historical): Gas generator 2nd stage turbine blades · Turbomeca Arriel 1B, Arriel 1D, Arriel 1D1 and 1 more. Effective Apr 30, 2008
- [AD 2007-19-09](https://openairdocs.org/ad/2007-19-09) (historical): Constant delta pressure valve · Turbomeca Arriel 2B1. Effective Oct 3, 2007
- [AD 2007-10-07](https://openairdocs.org/ad/2007-10-07) (historical): HP/LP pump assembly drive shaft · Turbomeca Arriel 2B and Arriel 2B1. Effective May 29, 2007
- [AD 2005-13-25 R1](https://openairdocs.org/ad/2005-13-25-R1) (historical): HMU acceleration controller axle · Turbomeca Arriel 2B. Effective May 22, 2007
- [AD 2007-03-14](https://openairdocs.org/ad/2007-03-14) (historical): Hydro-mechanical metering unit (HMU) · Turbomeca Arriel 2B1. Effective Feb 20, 2007
- [AD 2006-21-10](https://openairdocs.org/ad/2006-21-10) (historical): Splines of high-pressure (HP) pump drive gear shaft · Turbomeca Arriel 2B and Arriel 2B1. Effective Nov 24, 2006
- [AD 2006-02-08 R1](https://openairdocs.org/ad/2006-02-08-R1) (historical): Gas generator 2nd stage turbine blades. · Turbomeca Arriel 1B, Arriel 1D, Arriel 1D1 and 17 more. Effective Sep 13, 2006
- [AD 2006-02-08](https://openairdocs.org/ad/2006-02-08) (historical): 2nd stage turbine blades · Turbomeca Arriel 1B, Arriel 1D, Arriel 1D1 and 1 more. Effective Feb 28, 2006
- [AD 2005-13-25](https://openairdocs.org/ad/2005-13-25) (historical): Hydromechanical unit (HMU) acceleration controller · Turbomeca Arriel 2B. Effective Jul 11, 2005
- [AD 2003-12-14](https://openairdocs.org/ad/2003-12-14) (historical): Axial Compressor · Turbomeca Arriel 1A, Arriel 1A1, Arriel 1A2 and 11 more. Effective Jul 25, 2003
- [AD 95-11-01](https://openairdocs.org/ad/95-11-01) (historical): Generator · Turbomeca Arriel 1A, Arriel 1A1, Arriel 1A2 and 6 more. Effective Jun 21, 1995

All 152: https://openairdocs.org/aircraft/N44DS/ads.md

## Information bulletins (advisory) (3 in force)

- [SAIB SW-15-07](https://openairdocs.org/saib/SW-15-07): Rotor Drive-Tail Rotor Drive Flange Shur-Lok Nut Inspection. Issued Dec 30, 2014
- [SAIB SW-07-10](https://openairdocs.org/saib/SW-07-10): Sensor lock-wire. Issued Nov 6, 2006
- [SAIB SW-05-01](https://openairdocs.org/saib/SW-05-01): . Issued Oct 7, 2004

## NTSB investigations

None matched to N44DS.

## FAA accident and incident reports

None matched to N44DS.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (29)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Eurocopter EC 155B)

- [STC SR00925DE](https://openairdocs.org/stc/SR00925DE): Installation of Garmin GTX 335/335R and GTX345/345R transponders to provide ADS-B Out and In functionality. Peregrine
- [STC SH7024SW-D](https://openairdocs.org/stc/SH7024SW-D): Relocation of the aircraft dataplate. Airbus Helicopters Inc
- [STC SR09634RC](https://openairdocs.org/stc/SR09634RC): Installation of a Balloon Pump Restraint System (BPRS). JJASPP Engineering Services LLC
- [STC SR04147NY](https://openairdocs.org/stc/SR04147NY): Installation of Concorde (p/n RG-365) Lead Acid battery. DECA Aviation Engineering Limited
- [STC SR09597RC](https://openairdocs.org/stc/SR09597RC): Installation of a Flight Data System. North Flight Data Systems LLC
- [STC SR00529NY](https://openairdocs.org/stc/SR00529NY): Installation of a three or four place divan and optional single seats. RSG AeroDesign LLC
- [STC SR00530NY](https://openairdocs.org/stc/SR00530NY): Installation of a cocoon wall panel system. Texas Aviation Services
- [STC SR09407RC](https://openairdocs.org/stc/SR09407RC): Installation of forward and aft facing couch. Texas Aviation Services
- [STC SR09282RC-D](https://openairdocs.org/stc/SR09282RC-D): Installation of a Honeywell Enhanced Ground Proximity Warning System. American Eurocopter Corporation
- [STC SR01505NY](https://openairdocs.org/stc/SR01505NY): Installation of of R134a Belt Driven Vapor Cycle Air Conditioning System. Advanced Flight System Inc
- [STC SR09290RC-D](https://openairdocs.org/stc/SR09290RC-D): Installation of horizontal tip position/anti-collision strobe lights. American Eurocopter Corporation
- [STC SR09281RC-D](https://openairdocs.org/stc/SR09281RC-D): Installation of a Garmin Global Positioning System (GPS) 500. American Eurocopter Corporation
- [STC SH5866SW](https://openairdocs.org/stc/SH5866SW): Installation of forward facing recognition lights. DeVore Aviation Corporation of America, a New Mexico Corporation
- [STC SH5867SW](https://openairdocs.org/stc/SH5867SW): Installation of tail floodlights. DeVore Aviation Corporation of America, a New Mexico Corporation
- [STC SH7579SW](https://openairdocs.org/stc/SH7579SW): Installation of a rotor disc light. DeVore Aviation Corporation of America, a New Mexico Corporation
- [STC SH8804SW-D](https://openairdocs.org/stc/SH8804SW-D): Installation of a Universal Navigation UNS-1C Flight Management System for IFR enroute and non-precision approaches. American Eurocopter Corporation
- [STC SH4747SW-D](https://openairdocs.org/stc/SH4747SW-D): Installation of exterior markings. American Eurocopter Corporation
- [STC SR09283RC-D](https://openairdocs.org/stc/SR09283RC-D): Installation of of provisions for a Custom Control Concepts Inflight Entertainment System. Limited to installation on serial number 6615 ONLY. American Eurocopter Corporation
- [STC SR09280RC-D](https://openairdocs.org/stc/SR09280RC-D): Installation of a Goodrich GH-3000 Electronic Standby Instrument System. American Eurocopter Corporation
- [STC SR09284RC-D](https://openairdocs.org/stc/SR09284RC-D): Installation of forward facing and aft facing four place divans. Limited to installation on serial number 6615 ONLY. American Eurocopter Corporation
- [STC SR09357RC](https://openairdocs.org/stc/SR09357RC): Installation of Privacy Window Assembly. Heritage Aviation Ltd
- [STC ST01576NY](https://openairdocs.org/stc/ST01576NY): Installation of a Honeywell MK-XXII EGPWS. D & D Design Inc
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International

### Approved for the engine (Turbomeca ARRIEL series)

- [STC SE00328AT](https://openairdocs.org/stc/SE00328AT): Installation of a P2 fuel control isolation valve kit. Bell Helicopter Textron Inc. Lists Arriel 1
- [STC SE00567AT](https://openairdocs.org/stc/SE00567AT): Install Aeronautical Accessories Torque Monitoring System. Bell Helicopter Textron Inc. Lists Arriel 1
- [STC SE01859LA](https://openairdocs.org/stc/SE01859LA): Installation of a new Torque Transmitter with new cockpit torque indicator requirements. Diamond J Inc. Lists Arriel 1D1
- [STC SE7016SW-D](https://openairdocs.org/stc/SE7016SW-D): Installation of engine oil chip detector replacement. American Eurocopter Corporation. Lists Arriel 1C1
- [STC SE1029GL](https://openairdocs.org/stc/SE1029GL): Installation of a fuel flow transducer. Shadin Company, Inc. Lists Arriel 1
- [STC SH7016SW-D](https://openairdocs.org/stc/SH7016SW-D): Installation of the engine oil chip detector replacement. Thales Avionics, Inc. Lists Arriel 1C1

## Earlier aircraft with N44DS

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N44DS before.

- [Cancelled 2013-04-17](https://openairdocs.org/deregistered/N44DS-2013-04-17): Brantly B-2, S/N 30, built 1960. Registration expired, pending cancellation. Owner: [Letteer Lylee Jr](https://openairdocs.org/faa-owner/LETTEER%20LYLEE%20JR), [Oakwood, GA](https://openairdocs.org/faa-place/GA/Oakwood)

## Related

- Other Eurocopter EC 155B aircraft: https://openairdocs.org/model/eurocopter-ec-155b/aircraft.md
- The Turbomeca ARRIEL series engine: https://openairdocs.org/engine/turbomeca-arriel-series.md

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