# N4545W: 1990 Air Tractor AT-401, registration cancelled 2020-10-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 10, 2020
- Status when cancelled: Sale reported, canceled
- Airframe: [Air Tractor AT-401](https://openairdocs.org/model/air-tractor-at-401) (registry code 0390204)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Data sheets: [TCDS A17SW](https://openairdocs.org/tcds/A17SW) (OpenAirDocs)
- Serial number: 401-0790
- Year built: 1990
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: December 7, 1990
- Last registry action: January 8, 2020
- Mode S code: A58414
- Location: [Laredo, TX](https://openairdocs.org/faa-place/TX/Laredo)
- Owner type: Individual
- Owner's area on the map: 29.8923° N, 98.4083° W: Placed by OpenAirDocs at the center of ZIP code 78070, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4545W
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4545W
- Page: https://openairdocs.org/deregistered/N4545W-2020-10-10

From the FAA registry file of November 5, 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 Air Tractor AT-401: https://openairdocs.org/model/air-tractor-at-401.md

## Service difficulty reports (1)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 20000613SH003](https://openairdocs.org/sdr/20000613SH003), May 15, 2000: ATTACH FITTING. CORRODED. INTERNAL CORROSION CAUSED FAILURE OF HORIZONTAL STABILIZER STRUT AT LOWER ATTACH FITTING. SUBMITTER RECOMMENDED LOWER ATTACH POINT DESIGNED SIMILAR TO UPPER FIT

## 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 DFW05IA222](https://openairdocs.org/ntsb/DFW05IA222), Aug 19, 2005: Air Tractor AT-401 (N4545W), Winnie, TX, incident, minor damage. Probable cause: The loss of engine power due to the failure of the second-stage turbine wheel as a result of low cycle fatigue.

## 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.

- [Incident 20050819020459I](https://openairdocs.org/incident/20050819020459I), Aug 19, 2005: Airtrc AT401 (N4545W), Winnie, TX, Minor damage. (-23) 08/19/2005, 0815 Hrs, air tractor, model AT-401, N4545W, s/n 401-0790 departed Winnie/stowall airport, T90, on runway 17. Flight was enroute to wharton…

## Other aircraft with N4545W

- [Cancelled 1988-04-18](https://openairdocs.org/deregistered/N4545W-1988-04-18): Bura David E LONE RANGER, S/N 810168LR. Triennial form not returned

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