# NTSB DEN86LA096: Cessna R172K, N736GS, Ft. Bridger, WY, March 9, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 8, 1986, 18:00 local (Mar 9, 1986, 01:00 UTC)
- Place: Ft. Bridger, WY
- Coordinates: 41.319908, -110.380401 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.3199&lon=-110.3804&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16935
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN86LA096
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16935/pdf
- Page: https://openairdocs.org/ntsb/DEN86LA096

## Sequence of events

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

- In flight encounter with weather, maneuvering - turn to reverse direction
  - weather condition - snow
  - flight into known adverse weather - inadvertent, pilot in command (cause)
  - weather condition - fog
  - in-flight planning/decision - poor, pilot in command (cause)
  - light condition - dusk
- Loss of control - on ground/water, landing - roll
  - precautionary landing - performed, pilot in command
- Nose over, landing - roll
  - terrain condition - rough/uneven

## Analysis

ACCORDING TO THE PLT, HE AND HIS PASSENGER WERE FERRYING AN ACFT BACK TO THE POINT OF ORIGIN AFTER A SAR MISSION FOR THE CIVIL AIR PATROL, WHEN THEY ENCOUNTERED IMC WEATHER. THE PLT STATED HE WAS MAKING A PRECAUTIONARY LANDING ON A DIRT ROAD WHEN THE ACFT TRAVELED OFF THE SIDE OF THE ROAD AND NOSED OVER.

## Aircraft

- Registration: N736GS (not matched to a registry record)
- Reported make and model: CESSNA R172K
- Category: Airplane
- Serial number: R1722521
- Engines: CONTINENTAL IO-360-K 195 horsepower reciprocating
- Damage: Substantial damage
- Flight: Ferry, Part 91
- Registered owner: Civil Air Patrol
- Airworthiness certificate: Standard, Normal
- Departed: RKS, ROCK SPRINGS, WY
- Destination: EVW, EVANSTON, WY
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 172 total, 8 in this make and model, 137 as pilot in command, 9 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Dusk
- Wind: 315° at 10 knots
- Lowest ceiling: 60 ft overcast
- Temperature: 34 °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 19860308049029A](https://openairdocs.org/incident/19860308049029A), Mar 8, 1986: Cessna R172K, Ft Bridger, WY, Substantial damage. Nosed over after precautionary landing on a dirt road. VFR pilot encountered IFR weather in mountainous area.

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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