# Accident 19870718035409A: Airtrc AT301, Swiftown, MS, July 18, 1987

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 18, 1987, 11:30 local time
- Place: Swiftown, MS
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: Agricultural (Part 137)
- Operator: ZMTG
- Location: 33.3057° N, 90.4251° W: Placed by OpenAirDocs: center of Swiftown, MS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.3057&lon=-90.4251&mi=10
- Aircraft: N7310N, a cancelled registration (https://openairdocs.org/deregistered/N7310N-2022-05-03) (OpenAirDocs)
- Registry model: Air Tractor AT-301 (registry code 0390103, https://openairdocs.org/model/air-tractor-at-301) (OpenAirDocs)
- Registry engine: Pratt & Whitney R1340 series (registry code 52016, https://openairdocs.org/engine/pratt-whitney-r1340-series) (OpenAirDocs)
- Reported make and model: AIRTRC AT301
- Reported engine: PWA R1340AN1
- Fatal injuries: 0
- Pilot flight hours: 14,000 total, 460 in this make and model, 150 in the last 90 days
- NTSB investigation: [NTSB MIA87LA209](https://openairdocs.org/ntsb/MIA87LA209) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19870718035409A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

THE AIRCRAFT FORCE LANDED IN A COTTON FIELD DUE TO ENGINE VIBRATION DURING A SWATH RUN. CRANKSHAFT HAD FAILED.

## The NTSB's investigation of this event (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 MIA87LA209](https://openairdocs.org/ntsb/MIA87LA209), Jul 18, 1987: Air Tractor AT-301 (N7310N), Swiftown, MS, substantial damage

## Other reports on N7310N (2)

Matched to the same aircraft by N-number and date.

- [Accident 20130224003309A](https://openairdocs.org/incident/20130224003309A), Feb 24, 2013: Air Tractor Inc AT-301 (N7310N), Huntsville, AL, Substantial damage. On February 24, 2013, about 1445 central daylight time, pilot, [privacy data omitted] was operating an Air tractor, AT-301 airplane, N7310N, pilot stated that…
- [Incident 19950616026659I](https://openairdocs.org/incident/19950616026659I), Jun 16, 1995: Airtrc AT301 (N7310N), Sardis, AL, Minor damage. Vibration. Had to power back spraying a field. Wing tips hit trees. Belt broke causing one blade to change pitch.

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. For accidents, the NTSB's own investigation is the fuller record.

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