# N337MT: 1998 Boeing Helicopters CH-47D

- Status: Valid registration
- Airframe: [Boeing Helicopters CH-47D](https://openairdocs.org/model/boeing-helicopters-ch-47d) (registry code 138260A, 44 seats)
- Engine: [Lycoming T-55 SER TS](https://openairdocs.org/engine/lycoming-t-55-ser-ts) (registry code 41555)
- Serial number: M4101
- Year built: 1998
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Experimental, showing compliance
- Airworthiness date: March 20, 1998
- Certificate issued: August 7, 2023
- Expires: August 31, 2030
- Mode S code: A3B0F5
- Registered owner: [Billings Flying Service LLC](https://openairdocs.org/faa-owner/BILLINGS%20FLYING%20SERVICE%20LLC)
- Location: [Billings, MT](https://openairdocs.org/faa-place/MT/Billings)
- Owner type: Corporation
- Owner's area on the map: 45.8137° N, 108.7098° W: Placed by OpenAirDocs at the center of ZIP code 59106, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=337MT
- Page: https://openairdocs.org/aircraft/N337MT

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.

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

### Matched by airframe (Boeing Helicopters CH-47D)

None in force.

### Matched by engine (Lycoming T-55 SER TS)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N337MT.

## FAA accident and incident reports

None matched to N337MT.

## 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)

None matched to this aircraft's models.

## Earlier aircraft with N337MT

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N337MT before.

- [Cancelled 2013-05-08](https://openairdocs.org/deregistered/N337MT-2013-05-08): Raytheon B200, S/N BB-1628, built 1998. First renewal notice. Owner: [Mdtr Holdings LLC](https://openairdocs.org/faa-owner/MDTR%20HOLDINGS%20LLC), [Virginia Beach, VA](https://openairdocs.org/faa-place/VA/Virginia%20Beach)

## Related

- Other Boeing Helicopters CH-47D aircraft: https://openairdocs.org/model/boeing-helicopters-ch-47d/aircraft.md
- The Lycoming T-55 SER TS engine: https://openairdocs.org/engine/lycoming-t-55-ser-ts.md

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