# NTSB FTW84LA274: Air Tractor AT301, N8594S, San Benito, TX, June 16, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 15, 1984, 19:00 local (Jun 16, 1984, 00:00 UTC)
- Place: San Benito, TX
- Coordinates: 26.129745, -97.629142 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=26.1297&lon=-97.6291&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21369
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW84LA274
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21369/pdf
- Page: https://openairdocs.org/ntsb/FTW84LA274

## Sequence of events

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

- In flight collision with object, maneuvering - aerial application
  - object - wire,transmission (contributing factor)
  - clearance - misjudged, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

AT THE BEGINNING OF THE INITIAL SWATH RUN THE ACFT COLLIDED WITH POWER LINES. THE POWER LINES REMAINED ATTACHED TO THE ACFT THROUGHOUT THE UNCONTROLLED DESCENT INTO A COTTON FIELD.

## Aircraft

- Registration: [N8594S](https://openairdocs.org/deregistered/N8594S-2021-05-08), registration cancelled 2021-05-08, S/N 301-0158, built 1978 (OpenAirDocs)
- Reported make and model: Air Tractor AT301
- 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: 301-0158
- Airframe hours: 2105
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Dales Flying Service Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Departed: 53XS, SAN BENITO, TX

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 5,900 as pilot in command, 24 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 13 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 72 °F
- Altimeter: 29.00 inHg
- Observed at: MFE, 40 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 19840615025629A](https://openairdocs.org/incident/19840615025629A), Jun 15, 1984: Airtrc AT301, San Benito, TX, Substantial damage. Aircraft struck powerlines during aerial application flight.

## Other investigations on N8594S (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 FTW00LA159](https://openairdocs.org/ntsb/FTW00LA159), May 30, 2000: Air Tractor AT-301 (N8594S), Garwood, TX, substantial damage. Probable cause: The failure of the supercharger seal resulting in the loss of engine power. A factor was the lack of suitable terrain for the forced landing.

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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