# NTSB DEN90LA160: Cessna 180B, N59KM, Akron, CO, July 12, 1990

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 12, 1990, 09:00 local (15:00 UTC)
- Place: Akron, CO
- Coordinates: 40.160335, -103.2107 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.1603&lon=-103.2107&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 17971
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN90LA160
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17971/pdf
- Page: https://openairdocs.org/ntsb/DEN90LA160

## Probable cause

THE PILOT'S FAILURE TO CORRECT A SWERVE DURING LANDING ROLL. A FACTOR WAS WIND GUSTS.

## 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 - gusts (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
- Nose over, landing - roll
  - terrain condition - rough/uneven

## Analysis

AFTER TAKEOFF, THE PILOT NOTICED OIL ON THE WINDSCREEN, AND RETURNED FOR LANDING. DURING LANDING ROLL, A GUST PUSHED THE PLANE OFF THE RUNWAY TO THE LEFT. THE PLANE GROUND LOPPED, SHEARED THE LEFT MAIN GEAR, NOSED OVER AND CAME TO REST INVERTED. THE VERTICAL STABILIZER, TAIL SECTION AND BOTH WINGS WERE DAMAGED.

## Aircraft

- Registration: [N59KM](https://openairdocs.org/aircraft/N59KM), registered now, S/N 50503, built 1959 (OpenAirDocs)
- Reported make and model: CESSNA 180B
- Registry model: [Cessna 180B](https://openairdocs.org/model/cessna-180b) (registry code 2072606) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 50590
- Engines: CONTINENTAL O-470-R 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Glenn Cunningham
- Departed: AKO
- Destination: RAPE, RAPID CITY, SD
- Airport: AKO, Washington Co., runway 27, 4,100 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; flight instructor, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 3,700 total, 100 in this make and model, 25 in the last 90 days, 15 in the last 30 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 10 knots, gusting 12
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: -0 °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 19900712025449A](https://openairdocs.org/incident/19900712025449A), Jul 12, 1990: Cessna 180B, Akron, CO, Substantial damage. Noticed oil on windshield. Returned. Lost control ran off runway. Nosed over. Blamed wind gust. Source oil 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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