# N4433S: 1977 Air Tractor AT-301, registration cancelled 2012-02-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 29, 2012
- Status when cancelled: Third renewal notice
- 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: 301-0093
- Year built: 1977
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: September 1, 1977
- Certificate issued: May 2, 1992
- Last registry action: January 20, 2009
- Mode S code: A55894
- Owner when cancelled: [Melex USA Inc](https://openairdocs.org/faa-owner/MELEX%20USA%20INC)
- Location: [Raleigh, NC](https://openairdocs.org/faa-place/NC/Raleigh)
- Owner type: Non-citizen corporation
- Owner's area on the map: 35.8438° N, 78.6336° W: Placed by OpenAirDocs at the center of ZIP code 27609, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4433S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4433S
- Page: https://openairdocs.org/deregistered/N4433S-2012-02-29

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-301: https://openairdocs.org/model/air-tractor-at-301.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 FTW90DPG08](https://openairdocs.org/ntsb/FTW90DPG08), Aug 14, 1990: Air Tractor AT-301 (N4433S), Corning, AR, substantial damage. Probable cause: BLOCKAGE OF THE CARBURETOR AIR INTAKE BY A COLLAPSED AIR INDUCTION HOSE DUE TO IMPROPER MAINTENANCE BY AN UNKNOWN PARTY.
- [NTSB ATL81FLT04](https://openairdocs.org/ntsb/ATL81FLT04), Feb 26, 1981: Air Tractor AT-301 (N4433S), Crenshaw, MS, substantial damage

## 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 19900814038289A](https://openairdocs.org/incident/19900814038289A), Aug 14, 1990: Airtrc AT301 (N4433S), Corning, AR, Substantial damage. Engine quit on climbout. Engine air induction hose collapsed. Blocked air to carburetor.
- [Accident 19810226006369A](https://openairdocs.org/incident/19810226006369A), Feb 26, 1981: Airtrc AT301 (N4433S), Crenshaw, MS, Substantial damage. Engine quit on takeoff. Found large amounts of water and dirt in fuel system.

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