# N478CS: 1998 Eurocopter/Canada BO 105LS A-3

- Status: Registration pending
- Airframe: [Eurocopter/Canada BO 105LS A-3](https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3) (registry code 8680965, 6 seats)
- Engine: [Allison 250-C28 series](https://openairdocs.org/engine/allison-250-c28-series) (registry code 03022)
- Data sheets: [TCDS H3EU](https://openairdocs.org/tcds/H3EU) (Airbus Helicopters Deutschland GmbH (AHD)), [TCDS E1GL](https://openairdocs.org/tcds/E1GL) (Rolls-Royce Corporation) (OpenAirDocs)
- Serial number: 2053
- Year built: 1998
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, normal
- Airworthiness date: December 7, 1998
- Mode S code: A5DF15
- Location: [Spearfish, SD](https://openairdocs.org/faa-place/SD/Spearfish)
- Owner type: Individual
- Owner's area on the map: 44.4479° N, 103.9405° W: Placed by OpenAirDocs at the center of ZIP code 57783, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=478CS
- Page: https://openairdocs.org/aircraft/N478CS

From the FAA registry file of October 21, 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 Allison 250-C28 model are included.

## ADs that may apply (OpenAirDocs): 41 in force

### Matched by airframe (Eurocopter/Canada BO 105LS A-3)

- [AD 2025-25-05](https://openairdocs.org/ad/2025-25-05): Rotorcraft Flight Control · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105S and 6 more. Effective Dec 31, 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 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 2023-03-01](https://openairdocs.org/ad/2023-03-01): Main Rotor System · ECD Superlifter Conversion Kit 105-800331 (Eurocopter Deutschland STC SR00043RD). Effective Feb 21, 2023
- [AD 2022-24-07](https://openairdocs.org/ad/2022-24-07): Main Rotor Drive System · ECD Superlifter Conversion Kit 105-800331 (Eurocopter Deutschland STC SR00043RD). Effective Jan 6, 2023
- [AD 2021-13-14](https://openairdocs.org/ad/2021-13-14): Cabin Equipment/Furnishings · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-3 and 1 more. Effective Aug 17, 2021
- [AD 2021-10-21](https://openairdocs.org/ad/2021-10-21): Main Rotor System · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-3 and 9 more. Effective Jul 7, 2021
- [AD 2021-07-08](https://openairdocs.org/ad/2021-07-08): Main Rotor Mast/Swashplate · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 2 more. Effective Apr 30, 2021
- [AD 2017-05-03](https://openairdocs.org/ad/2017-05-03): Main Rotor Blade · Airbus Helicopters Deutschland BO-105C, BO-105LS A-3 and BO-105S. Effective Mar 17, 2017
- [AD 2013-16-13](https://openairdocs.org/ad/2013-16-13): Tail Rotor Head · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 8 more. Effective Sep 27, 2013
- [AD 2013-16-06](https://openairdocs.org/ad/2013-16-06): Main Rotor Blades · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 2 more. Effective Sep 13, 2013
- [AD 2013-11-15](https://openairdocs.org/ad/2013-11-15): Main Rotor Control · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 14 more. Effective Jul 26, 2013
- [AD 2012-13-11](https://openairdocs.org/ad/2012-13-11): Tail Rotor Head · Airbus Helicopters Deutschland BO-105LS A-3, MBB-BK 117 A-1, MBB-BK 117 A-3 and 5 more. Effective Aug 7, 2012
- [AD 2011-25-01](https://openairdocs.org/ad/2011-25-01): Liferafts · Agusta AB412, AB412 EP, 206A and 23 more. Effective Jan 17, 2012
- [AD 2006-15-14](https://openairdocs.org/ad/2006-15-14): Fixed bolts and nuts, main rotor nuts · Airbus Helicopters Deutschland BO-105LS A-3. Effective Aug 31, 2006
- [AD 2000-18-13](https://openairdocs.org/ad/2000-18-13): Tension-Torsion (TT) Strap · Airbus Helicopters Deutschland BO-105LS A-3. Effective Oct 19, 2000
- [AD 92-11-01](https://openairdocs.org/ad/92-11-01): Torque Indication Hose Assembly · Airbus Helicopters Deutschland BO-105LS A-3. Effective Aug 28, 1992
- [AD 87-26-02 R1](https://openairdocs.org/ad/87-26-02-R1): Main Rotor Control Rods · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 2 more. Effective Sep 26, 1989
- [AD 87-09-03](https://openairdocs.org/ad/87-09-03): Rotor Blade Bolts · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 6 more. Effective Aug 26, 1988
- [AD 87-19-01](https://openairdocs.org/ad/87-19-01): Stc Sh479gl Labels · Lubrication oil scavenge filter is installed in the existing… (Facet Filter Products STC SH1853SO or 3 others). Effective Dec 18, 1987

### Matched by engine (Allison 250-C28 series)

- [AD 2018-13-01](https://openairdocs.org/ad/2018-13-01): Turbine Governor · Rolls-Royce 250-C10 (T63-A-5), 250-C18, 250-C18A and 24 more. Effective Aug 16, 2018
- [AD 2006-16-04](https://openairdocs.org/ad/2006-16-04): Inspection of the fuel nozzle screen · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Sep 7, 2006
- [AD 2005-20-11](https://openairdocs.org/ad/2005-20-11): Airfoils at the hub and shroud of third-stage turbine wheels · Rolls-Royce 250-C28, 250-C28B and 250-C28C. Effective Oct 18, 2005
- [AD 2004-14-02](https://openairdocs.org/ad/2004-14-02): SN third-stage turbine wheels · Rolls-Royce 250-C28, 250-C28B and 250-C28C. Effective Jul 26, 2004
- [AD 2002-06-08](https://openairdocs.org/ad/2002-06-08): Third Stage Turbine Wheels · Rolls-Royce 250-C28, 250-C28B and 250-C28C. Effective Apr 26, 2002
- [AD 98-24-28](https://openairdocs.org/ad/98-24-28): Main Fuel Control Bellows · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 36 more. Effective Jan 7, 1999
- [AD 96-19-01](https://openairdocs.org/ad/96-19-01): Superior Air Parts Manufacture Approval (PMA) Bearings · Rolls-Royce 250-B15G, 250-B17F, 250-B17F/1 and 17 more. Effective Sep 26, 1996
- [AD 89-23-12](https://openairdocs.org/ad/89-23-12): Turbine Nozzle Assembly · Rolls-Royce 250-C28B and 250-C28C. Effective Oct 29, 1989
- [AD 86-20-13](https://openairdocs.org/ad/86-20-13): External Splines · Rolls-Royce 250-C28B, 250-C28C, 250-C30 and 9 more. Effective Dec 3, 1986
- [AD 85-25-07 R1](https://openairdocs.org/ad/85-25-07-R1): Outer Combustion Case Assembly · Rolls-Royce 250-C28, 250-C28B, 250-C28C and 10 more. Effective Aug 15, 1986
- [AD 86-16-03](https://openairdocs.org/ad/86-16-03): Scavenge Line Air/Oil Centrifugal Separator Assembly · Rolls-Royce 250-C28B and 250-C28C. Effective Aug 13, 1986
- [AD 85-25-12](https://openairdocs.org/ad/85-25-12): Turbine-To-Compressor-Coupling · Rolls-Royce 250-C28B and 250-C28C. Effective Jan 6, 1986
- [AD 85-25-09](https://openairdocs.org/ad/85-25-09): Turbine Shafts And Couplings · Rolls-Royce 250-C28B and 250-C28C. Effective Jan 6, 1986
- [AD 85-25-08](https://openairdocs.org/ad/85-25-08): Compressor Mount Assembly · Rolls-Royce 250-C28B, 250-C28C, 250-C30 and 2 more. Effective Jan 6, 1986
- [AD 83-01-04](https://openairdocs.org/ad/83-01-04): Turbine Assemblies · Rolls-Royce 250-C28B and 250-C28C. Effective Jan 24, 1983
- [AD 82-24-05](https://openairdocs.org/ad/82-24-05): Control Assembly and Power Turbine Governor Assembly · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Nov 26, 1982
- [AD 82-03-02](https://openairdocs.org/ad/82-03-02): N2 (Electronic) Overspeed Control System · Rolls-Royce 250-C28B. Effective Feb 4, 1982
- [AD 79-16-06](https://openairdocs.org/ad/79-16-06): Accessory Drive Gearbox · Rolls-Royce 250-C28, 250-C28B, 250-C28C and 10 more. Effective Jan 11, 1980
- [AD 79-18-13](https://openairdocs.org/ad/79-18-13): Third Stage Turbine Wheel · Rolls-Royce 250-C28B and 250-C28C. Effective Sep 6, 1979
- [AD 79-06-05](https://openairdocs.org/ad/79-06-05): Overspeed Control System · Rolls-Royce 250-C28B and 250-C30. Effective Mar 26, 1979
- [AD 78-26-01](https://openairdocs.org/ad/78-26-01): Engine Electrical System · Rolls-Royce 250-C28B. Effective Nov 3, 1978

### 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 2021-10-14](https://openairdocs.org/ad/2021-10-14) (historical): Main Rotor System · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-3 and 1 more. Effective Jun 24, 2021
- [AD 2019-07-07](https://openairdocs.org/ad/2019-07-07) (historical): Main Rotor System · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-3 and 9 more. Effective May 24, 2019
- [AD 2016-25-14](https://openairdocs.org/ad/2016-25-14) (historical): Main Rotor System · Airbus Helicopters Deutschland BO-105LS A-3. Effective Jan 31, 2017
- [AD 99-20-13](https://openairdocs.org/ad/99-20-13) (historical): TT Strap · Eurocopter Canada BO 105 LS A-3. Effective Nov 2, 1999
- [AD 97-26-02](https://openairdocs.org/ad/97-26-02) (historical): Main Rotor Mast Flange Crack Inspection · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 2 more. Effective Dec 31, 1997
- [AD 2004-24-09](https://openairdocs.org/ad/2004-24-09) (historical): Fuel nozzle · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 40 more. Effective Jan 5, 2005

## Information bulletins (advisory) (1 in force)

- [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012

## NTSB investigations

None matched to N478CS.

## FAA accident and incident reports

None matched to N478CS.

## Service difficulty reports

None filed for this aircraft.

## Related

- Other Eurocopter/Canada BO 105LS A-3 aircraft: https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3/aircraft.md
- STCs for the Eurocopter/Canada BO 105LS A-3: https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3/stcs.md
- The Allison 250-C28 series engine: https://openairdocs.org/engine/allison-250-c28-series.md

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