# N4542W: Air Tractor AT-401, registration cancelled 2020-07-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 10, 2020
- Status when cancelled: Registration expired, pending cancellation
- 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: 401-0767
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: June 27, 1990
- Certificate issued: March 5, 2014
- Last registry action: October 14, 2016
- Mode S code: A583AB
- Owner when cancelled: [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.7357° N, 75.5321° W: Placed by OpenAirDocs: center of Wilmington, DE, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4542W
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4542W
- Page: https://openairdocs.org/deregistered/N4542W-2020-07-10

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

## 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 CEN14LA439](https://openairdocs.org/ntsb/CEN14LA439), Aug 19, 2014: Air Tractor AT-401 (N4542W), Wray, CO, substantial damage. Probable cause: A loss of the No. 1 cylinder’s compression due to a stuck exhaust valve caused by a lack of sufficient valve clearance, which resulted in a loss of engine power and a forced landing. Contributing to…

## 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 20140819015309A](https://openairdocs.org/incident/20140819015309A), Aug 19, 2014: Air Tractor Inc AT-401 (N4542W), Wray, CO, Substantial damage. On 08/19/2014 at 0745 MDT, N4542W, an Air tractor AG-401 restricted airworthiness airplane flipped on landing in a field after power loss. The sole commercial…

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