# NTSB DEN86LA177: Cessna 182P, N9099M, Sheridan, WY, June 28, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 28, 1986, 09:00 local (15:00 UTC)
- Place: Sheridan, WY
- Coordinates: 44.789962, -106.949958 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.7900&lon=-106.9500&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16993
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN86LA177
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16993/pdf
- Page: https://openairdocs.org/ntsb/DEN86LA177

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - improper use of, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - terrain condition - downhill (contributing factor)
  - object - fence (contributing factor)

## Analysis

A LOSS OF DIRECTIONAL CONTROL OCCURRED DURING LANDING ROLL AND THE ACFT DEPARTED THE LEFT SIDE OF THE GRASS/DIRT LANDING STRIP. THE ACFT THEN TRAVELED DOWN A SLIGHT EMBANKMENT AND COLLIDED WITH A WIRE FENCE AND FENCE POSTS.

## Aircraft

- Registration: [N9099M](https://openairdocs.org/deregistered/N9099M-1992-01-15), registration cancelled 1992-01-15, S/N 18264674 (OpenAirDocs)
- Reported make and model: CESSNA 182P
- Registry model: [Cessna 182P](https://openairdocs.org/model/cessna-182p) (registry code 2075816) (OpenAirDocs)
- Category: Airplane
- Serial number: 18264674
- Airframe hours: 1996
- Engines: CONTINENTAL O-470-R 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: John A. Wilson
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, February 18, 1986, 37 hours before
- Departed: SHR, SHERIDAN, WY
- Destination: SHERIDAN, WY
- Airport: 76 Ranch, runway 1, 1,400 × 30 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 190 total, 164 in this make and model, 30 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 35° at 9 knots
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point -0 °F
- Altimeter: 30.00 inHg
- Observed at: SHR, 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 19860628028489A](https://openairdocs.org/incident/19860628028489A), Jun 28, 1986: Cessna 182P, Sheridan, WY, Substantial damage. Aircraft departed the side of the runway and went through a fence. Pilot failed to maintain directional control.

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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