# N668TM: 2002 Robinson Helicopter R44, registration cancelled 2026-04-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 17, 2026
- Status when cancelled: Valid registration
- Airframe: [Robinson Helicopter R44](https://openairdocs.org/model/robinson-helicopter-r44) (registry code 7640120)
- Engine: [Lycoming O-540-F1B5](https://openairdocs.org/engine/lycoming-o-540-f1b5) (registry code 42353)
- Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM), [TCDS E-295](https://openairdocs.org/tcds/E-295) (OpenAirDocs)
- Serial number: 1228
- Year built: 2002
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: February 24, 2023
- Certificate issued: September 1, 2024
- Last registry action: September 1, 2024
- Mode S code: A8D3A6
- Owner when cancelled: [Alpha Helicopters LLC](https://openairdocs.org/faa-owner/ALPHA%20HELICOPTERS%20LLC)
- Location: [Livingston, TN](https://openairdocs.org/faa-place/TN/Livingston)
- Owner type: LLC
- Owner's area on the map: 36.3754° N, 85.3274° W: Placed by OpenAirDocs at the center of ZIP code 38570, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N668TM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=668TM
- Page: https://openairdocs.org/deregistered/N668TM-2026-04-17

From the FAA registry file of October 31, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Robinson Helicopter R44: https://openairdocs.org/model/robinson-helicopter-r44.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA26LA048](https://openairdocs.org/ntsb/ERA26LA048), Nov 14, 2025: Robinson Helicopter R44 (N668TM), Cookeville, TN, substantial damage. Probable cause: The pilot’s failure to maintain an appropriate decent rate during approach, resulting in a hard landing.

## 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.

- [Accident 20251114018119A](https://openairdocs.org/incident/20251114018119A), Nov 14, 2025: Robinson Helicopter R44 (N668TM), Cookeville, TN, Substantial damage. On November 15, at approximately 16:15 CST, the pilot arrived at the aircraft and conducted a full preflight inspection of the Robinson R44 R1 in accordance…

## Other aircraft with N668TM

- [Registered now](https://openairdocs.org/aircraft/N668TM): Robinson Helicopter R44, S/N 1032, built 2000
- [Cancelled 2008-06-10](https://openairdocs.org/deregistered/N668TM-2008-06-10): Piper PA-31-350, S/N 31-8052008, built 1979. Exported to Canada. Owner: [Musgrave Thomas C III](https://openairdocs.org/faa-owner/MUSGRAVE%20THOMAS%20C%20III), [San Antonio, TX](https://openairdocs.org/faa-place/TX/San%20Antonio)

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