# NTSB CHI85LA283: Air Tractor AT301, N23702, Roseau, MN, July 10, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 10, 1985, 14:30 local (19:30 UTC)
- Place: Roseau, MN
- Coordinates: 48.840805, -95.760398 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.8408&lon=-95.7604&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): 13137
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85LA283
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13137/pdf
- Page: https://openairdocs.org/ntsb/CHI85LA283

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, maneuvering - aerial application
  - engine assembly,cylinder - failure,total (cause)
- Forced landing, descent - emergency
  - terrain condition - crop
- Nose over, landing - roll
  - terrain condition - soft (contributing factor)

## Analysis

THE AIRCRAFT HAD BEEN AIRBORNE ABOUT 15 MIN ENGAGED IN AG SPRAY OPERATIONS WHEN THE PILOT DESCRIBED HEARING A LOUD BAND. ENGINE POWER DECREASED TO IDLE. PILOT LD IN SOFT SOIL AND NOSED OVER INVERTED.EXAM DISCLOSED #2 PISTON HAD FAILED.

## Aircraft

- Registration: [N23702](https://openairdocs.org/deregistered/N23702-2018-03-02), registration cancelled 2018-03-02, S/N 301-0419, built 1982 (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: 301-0415
- Engines: P&W R-1340-AN-1 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Leon Schultz
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, April 12, 1985, 136 hours before
- Departed: ROSEAU, MN

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 25,000 total, 800 in this make and model, 136 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 30° at 6 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 73 °F, dew point 52 °F
- Altimeter: 29.00 inHg
- Observed at: GFK, 81 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 19850710030599A](https://openairdocs.org/incident/19850710030599A), Jul 10, 1985: Airtrc AT301, Roseau, MN, Substantial damage. Number 2 cylinder failed during a spraying run. Landed in a field with soft soil and nosed over.

## Other investigations on N23702 (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 MKC89LA091](https://openairdocs.org/ntsb/MKC89LA091), Apr 15, 1989: Air Tractor AT-301 (N23702), Roseau, MN, substantial damage. Probable cause: FUEL STARVATION DUE TO FUEL ICE.

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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