# N4345S: 1975 Air Tractor AT-301, registration cancelled 2021-05-08

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 8, 2021
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Air Tractor AT-301](https://openairdocs.org/model/air-tractor-at-301) (registry code 0390103)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Data sheets: [TCDS A9SW](https://openairdocs.org/tcds/A9SW) (OpenAirDocs)
- Serial number: 301-0025
- Year built: 1975
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: December 2, 1975
- Certificate issued: June 14, 2010
- Last registry action: April 6, 2018
- Mode S code: A53512
- Owner when cancelled: [Kafer Stone Applicator Service Inc](https://openairdocs.org/faa-owner/KAFER%20STONE%20APPLICATOR%20SERVICE%20INC)
- Location: [Omro, WI](https://openairdocs.org/faa-place/WI/Omro)
- Owner type: Corporation
- Owner's area on the map: 44.0439° N, 88.7730° W: Placed by OpenAirDocs at the center of ZIP code 54963, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4345S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4345S
- Page: https://openairdocs.org/deregistered/N4345S-2021-05-08

From the FAA registry file of November 4, 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-301: https://openairdocs.org/model/air-tractor-at-301.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 2011FA0000567](https://openairdocs.org/sdr/2011FA0000567), Aug 4, 2011: ENGINE. POWER LOSS. TOTAL LOSS OF POWER ON TAKEOFF. 500 HOURS SINCE O/H.

## 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 CEN11FA562](https://openairdocs.org/ntsb/CEN11FA562), Aug 4, 2011: Air Tractor AT-301 (N4345S), Nekoosa, WI, substantial damage. Probable cause: A total loss of engine power during initial climb for undetermined reasons.

## 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 20110804016979A](https://openairdocs.org/incident/20110804016979A), Aug 4, 2011: Air Tractor Inc AT-301 (N4345S), Nekoosa, WI, Substantial damage. Pilot reported this was to be a repositioning flight to their grass strip 30 miles to the east. First flight of the dayapprox 50 gallons of fuel was on board…

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