# Accident 19910916040069A: Airtrc AT401, Sumner, MS, September 16, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 16, 1991, 13:15 local time
- Place: Sumner, MS
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: Agricultural (Part 137)
- Operator: KZOG
- Location: 33.9908° N, 90.3505° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=33.9908&lon=-90.3505&mi=10
- Aircraft: N1004W, a cancelled registration (https://openairdocs.org/deregistered/N1004W-2005-06-22) (OpenAirDocs)
- Registry model: Air Tractor AT-401 (registry code 0390204, https://openairdocs.org/model/air-tractor-at-401) (OpenAirDocs)
- Registry engine: Pratt & Whitney R1340 series (registry code 52016, https://openairdocs.org/engine/pratt-whitney-r1340-series) (OpenAirDocs)
- Reported make and model: AIRTRC AT401
- Reported engine: PWA R1340AN1
- Fatal injuries: 0
- Pilot flight hours: 7,500 total, 850 in this make and model, 300 in the last 90 days
- NTSB investigation: [NTSB MIA91LA219](https://openairdocs.org/ntsb/MIA91LA219) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910916040069A

## Narrative

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

RETURNING TO BASE ENGINE FAILED. LANDING ON DIRT ROAD WING CAUGHT ON TALL COTTON. NR1 CYLINDER FAILED AT PLUG HOLE.

## 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 MIA91LA219](https://openairdocs.org/ntsb/MIA91LA219), Sep 16, 1991: Air Tractor AT-401 (N1004W), Sumner, MS, substantial damage. Probable cause: FAILURE OF THE NO. 1 CYLINDER ASSEMBLY.

## Other reports on N1004W (2)

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

- [Accident 19960615013919A](https://openairdocs.org/incident/19960615013919A), Jun 15, 1996: Airtrc AT401 (N1004W), Cash, AR, Destroyed. Aircraft lost power on takeoff struck a ditch at end of runway, came to rest in a rice field. (-23) on June 14, 1996, at 1930 local time, pilot was making last…
- [Accident 19950711018519A](https://openairdocs.org/incident/19950711018519A), Jul 11, 1995: Airtrc AT401 (N1004W), Cash, AR, Substantial damage. En route to spray field engine lost power. Dumped load. Nosed over landing. Both mags misfiring or not firing.

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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