# NTSB FTW90DPG04: Air Tractor 301A, N31631, Foreman, AR, July 30, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 30, 1990, 07:30 local (12:30 UTC)
- Place: Foreman, AR
- Coordinates: 33.710624, -94.390586 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.7106&lon=-94.3906&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 14, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 22937
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW90DPG04
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22937/pdf
- Page: https://openairdocs.org/ntsb/FTW90DPG04

## Probable cause

THE PILOT'S INADVERTENT STALL/MUSH.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with terrain/water, maneuvering - aerial application
  - terrain condition - crop
  - airspeed - not maintained, pilot in command (cause)
  - stall/mush - inadvertent, pilot in command (cause)

## Analysis

IN AN EFFORT TO REALIGN WITH THE FLAGMAN, THE INITIAL NORTHERLY SWATH RUN WAS ABORTED. DURING THE SOUTHEASTERLY TURN THE AIRPLANE BEGAN TO SETTLE. THE PILOT ADDED POWER BUT WAS UNABLE TO KEEP THE LEFT WING FROM DRAGGING IN THE CROPS. THIS RESULTED IN TERRAIN IMPACT, WHICH CAUSED THE AIRPLANE TO CARTWHEEL AND THE ENGINE TO SEPARATE FROM THE AIRFRAME.

## Aircraft

- Registration: [N31631](https://openairdocs.org/deregistered/N31631-2013-07-30), registration cancelled 2013-07-30, S/N 301-0532, built 1984 (OpenAirDocs)
- Reported make and model: AIR TRACTOR 301A
- Registry model: [Air Tractor AT-301](https://openairdocs.org/model/air-tractor-at-301) (registry code 0390103) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 301-0532
- Airframe hours: 2438
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Operator: Thomas W. May, doing business as Tedder Aviation
- Registered owner: Tedder Aviation Corp.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, May 30, 1990, 87 hours before
- Departed: PRIV, NEW BOSTON, TX

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 10,000 total, 3,000 in this make and model, 10,000 as pilot in command, 150 in the last 90 days, 60 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 3 statute miles
- Lowest ceiling: none
- Temperature: 73 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: TXK, 35 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19900730029169A](https://openairdocs.org/incident/19900730029169A), Jul 30, 1990: Airtrc AT301, Foreman, AR, Destroyed. Dragged wing on spray turn around. Cartwheeled and tore engine loose.

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.

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