# N51990: 1999 Air Tractor AT-502B, registration cancelled 2016-04-25

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 25, 2016
- Status when cancelled: Registration expired
- 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-0557
- Year built: 1999
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control, forest
- Airworthiness date: March 22, 1999
- Certificate issued: March 4, 2013
- Last registry action: March 4, 2013
- Mode S code: A6868A
- Owner when cancelled: [Farmers Spraying Service Inc](https://openairdocs.org/faa-owner/FARMERS%20SPRAYING%20SERVICE%20INC)
- Location: [Pratt, KS](https://openairdocs.org/faa-place/KS/Pratt)
- Owner type: Corporation
- Owner's area on the map: 37.6344° N, 98.7736° W: Placed by OpenAirDocs at the center of ZIP code 67124, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N51990
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=51990
- Page: https://openairdocs.org/deregistered/N51990-2016-04-25

From the FAA registry file of October 29, 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 (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 CEN14LA211](https://openairdocs.org/ntsb/CEN14LA211), Apr 22, 2014: Air Tractor AT 502B (N51990), Garfield, KS, substantial damage, 1 fatal. Probable cause: The pilot’s inadequate preflight planning and subsequent failure to remain clear of power lines while maneuvering low to the ground.

## 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 20140422010659A](https://openairdocs.org/incident/20140422010659A), Apr 22, 2014: Air Tractor Inc AT-502B (N51990), Garfield, KS, Destroyed, 1 fatal. On April 22, 2014 at approximately 13:15 local time (1815 UTC) an airline transport pilot was involved in a fatal aircraft accident while conducting aerial…

## Other aircraft with N51990

- [Cancelled 1995-04-12](https://openairdocs.org/deregistered/N51990-1995-04-12): Israel Aircraft Industries 1123, S/N 183. Exported to Argentina. Owner: [Marcelo Christian Demaria Inc](https://openairdocs.org/faa-owner/MARCELO%20CHRISTIAN%20DEMARIA%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)

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