# N144SW: 1980 Bell 206B-III

- Status: Valid registration
- Airframe: [Bell 206B-III](https://openairdocs.org/model/bell-206b-iii) (registry code 1181506, 5 seats)
- Engine: [Allison 250 SER 250HP](https://openairdocs.org/engine/allison-250-ser-250hp) (registry code 03002)
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW) (Bell Textron Canada Limited) (OpenAirDocs)
- Serial number: 3106
- Year built: 1980
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Multiple
- Airworthiness date: June 14, 1990
- Mode S code: A0B331
- Registered owner: [Interstate Helicopters Inc](https://openairdocs.org/faa-owner/INTERSTATE%20HELICOPTERS%20INC)
- Location: [Bethany, OK](https://openairdocs.org/faa-place/OK/Bethany)
- Owner type: Corporation
- Owner's area on the map: 35.5109° N, 97.6425° W: Placed by OpenAirDocs at the center of ZIP code 73008, 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=144SW
- Page: https://openairdocs.org/aircraft/N144SW

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.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Bell 206B-III)

None in force.

### Matched by engine (Allison 250 SER 250HP)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N144SW.

## FAA accident and incident reports

None matched to N144SW.

## Service difficulty reports

None filed for this aircraft.

## Related

- Other Bell 206B-III aircraft: https://openairdocs.org/model/bell-206b-iii/aircraft.md
- STCs for the Bell 206B-III: https://openairdocs.org/model/bell-206b-iii/stcs.md
- The Allison 250 SER 250HP engine: https://openairdocs.org/engine/allison-250-ser-250hp.md

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