# NTSB SEA93LA014: Cessna 182A, N4020D, Ashton, ID, October 31, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 31, 1992, 16:15 local (23:15 UTC)
- Place: Ashton, ID
- Coordinates: 44.050994, -111.319297 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.0510&lon=-111.3193&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report September 28, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 42957
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA93LA014
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42957/pdf
- Page: https://openairdocs.org/ntsb/SEA93LA014

## Probable cause

A POWER LOSS FOR UNDETERMINED REASONS. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS THE SOFT TERRAIN.

## Analysis

THE PILOT REPORTED THAT APPROXIMATELY 35 MINUTES INTO THE FLIGHT AND WHILE ESTABLISHED IN CRUISE AT APPROXIMATELY 1500 FEET AGL ENROUTE FROM WEST YELLOWSTONE, MONTANA, TO ST. ANTHONY, IDAHO, THE ENGINE ABRUPTLY STOPPED OPERATING. ATTEMPTS TO RESTART WERE UNSUCCESSFUL AND THE PILOT EXECUTED A FORCED LANDING IN AN SOFT AGRICULTURAL FIELD. DURING THE LANDING ROLL THE AIRCRAFT NOSED OVER. POST CRASH EXAMINATION REVEALED EVIDENCE OF FUEL IN BOTH FUEL TANKS. THE ENGINE AND FUEL SYSTEM WERE EXAMINED AND NO MECHANICAL MALFUNCTION COULD BE FOUND.

## Sequence of events

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

- Loss of engine power, cruise
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - soft (contributing factor)

## Aircraft

- Registration: [N4020D](https://openairdocs.org/deregistered/N4020D-1995-09-12), registration cancelled 1995-09-12, S/N 34720 (OpenAirDocs)
- Reported make and model: CESSNA 182A
- Registry model: [Cessna 182A](https://openairdocs.org/model/cessna-182a) (registry code 2072704) (OpenAirDocs)
- Category: Airplane
- Serial number: 34720
- Engines: CONTINENTAL O-470-L 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Medley, Willy D.
- Registered owner: Medley, Willy D.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 1, 1992
- Departed: U53, W. YELLOWSTONE, MT
- Destination: U12, ST. ANTHONY, ID

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 45; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 790 total, 640 in this make and model, 53 in the last 90 days, 8 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 260° at 6 knots
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 46 °F, dew point 30 °F
- Altimeter: 30.00 inHg
- Observed at: IDA, 44 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 19921031044539A](https://openairdocs.org/incident/19921031044539A), Oct 31, 1992: Cessna 182A, Ashton, ID, Substantial damage. Reported powerloss en route. Nosed over on forced landing in a soft field. Cause power loss unknown.

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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