# NTSB SEA85FYM01: Air Tractor AT301, N3652F, Weston, OR, April 30, 1985

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: April 30, 1985, 09:09 local (16:09 UTC)
- Place: Weston, OR
- Coordinates: 45.799407, -118.259048 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.7994&lon=-118.2590&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40067
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85FYM01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40067/pdf
- Page: https://openairdocs.org/ntsb/SEA85FYM01

## 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
  - clearance - inadequate, pilot in command (cause)
  - altitude - inadequate, pilot in command (cause)
  - object - tree(s) (contributing factor)

## Analysis

DURING THIS AERIAL APPLICATION FLIGHT THE AIRCRAFT CLIPPED A TREE AND THEN IMPACTED WITH THE GROUND. THE PILOT WAS SERIOUSLY INJURED WHEN THE STITCHING ON THE SHOULDER HARNESS FAILED AND THE PILOT WAS THROWN FORWARD.

## Aircraft

- Registration: [N3652F](https://openairdocs.org/deregistered/N3652F-2018-01-18), registration cancelled 2018-01-18, S/N 301-0267, built 1980 (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: 301-0267
- Airframe hours: 2258
- Engines: P&W R1340-AN1 1340 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Registered owner: Larry E. Denton
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 4, 1984, 304 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; commercial; airplane ratings: single-engine land; instrument ratings: helicopter; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 2,320 total, 154 in this make and model, 1,809 as pilot in command, 140 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 48 °F, dew point -0 °F

## 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 19850430015069A](https://openairdocs.org/incident/19850430015069A), Apr 30, 1985: Airtrc AT301, Weston, OR, Substantial damage. Wing struck tree during spray run and aircraft impacted ground. Shoulder harness stitching failed on impact.

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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