# N502S: 1997 Air Tractor AT-502B, registration cancelled 2020-01-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 30, 2020
- Status when cancelled: First renewal notice
- Airframe: [Air Tractor AT-502B](https://openairdocs.org/model/air-tractor-at-502b) (registry code 0390307)
- Engine: [Pratt & Whitney PT6A series](https://openairdocs.org/engine/pratt-whitney-pt6a-series) (registry code 52034)
- Data sheets: [TCDS A17SW](https://openairdocs.org/tcds/A17SW) (OpenAirDocs)
- Serial number: 502B-0456
- Year built: 1997
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control, forest
- Airworthiness date: August 27, 1997
- Certificate issued: May 18, 2011
- Last registry action: February 28, 2017
- Mode S code: A642EE
- Owners when cancelled: [Ross Seed Co Inc DBA](https://openairdocs.org/faa-owner/ROSS%20SEED%20CO%20INC%20DBA), [Agrimax](https://openairdocs.org/faa-owner/AGRIMAX)
- Location: [Fisher, MN](https://openairdocs.org/faa-place/MN/Fisher)
- Owner type: Corporation
- Owner's area on the map: 47.8048° N, 96.8060° W: Placed by OpenAirDocs at the center of ZIP code 56723, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N502S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=502S
- Page: https://openairdocs.org/deregistered/N502S-2020-01-30

From the FAA registry file of November 3, 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-502B: https://openairdocs.org/model/air-tractor-at-502b.md

## NTSB investigations (2)

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 CEN18LA249](https://openairdocs.org/ntsb/CEN18LA249), Jun 28, 2018: Air Tractor AT502 (N502S), Tappen, ND, substantial damage. Probable cause: The partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB FTW99LA005](https://openairdocs.org/ntsb/FTW99LA005), Oct 8, 1998: Air Tractor AT-502B (N502S), Ringling, OK, substantial damage. Probable cause: The pilot's failure to maintain obstacle clearance. A factor was the sun glare which impaired the pilot's vision.

## FAA accident and incident reports (2)

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 20180627022449A](https://openairdocs.org/incident/20180627022449A), Jun 27, 2018: Air Tractor Inc AT-502B (N502S), Tappen, ND, Substantial damage. On takeoff roll the aircraft seemed to suffer a partial loss of power. The pilot jettisoned the load and moved the power lever all the way forward. The…
- [Accident 19981008028659A](https://openairdocs.org/incident/19981008028659A), Oct 8, 1998: Airtrc AT502B (N502S), Ringling, OK, Substantial damage. Acft was involved in aerial application and had pulled up after dusting a field when the sun got in the pilots eyes and the acft struck a utility pole.(.19) on…

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