# NTSB DEN86LA225: Piper PA-18, N1590P, Worland, WY, August 8, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 8, 1986, 17:20 local (23:20 UTC)
- Place: Worland, WY
- Coordinates: 43.999992, -107.949592 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.0000&lon=-107.9496&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 10, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 17031
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN86LA225
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17031/pdf
- Page: https://openairdocs.org/ntsb/DEN86LA225

## Sequence of events

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

- On ground/water encounter with weather, landing - flare/touchdown
  - weather condition - gusts (contributing factor)
  - ground loop/swerve - not corrected, pilot in command (cause)
- Nose over, landing - roll

## Analysis

ON LANDING, WIND GUST LIFTED LEFT WING AND TAIL SECTION. ACFT NOSED OVER.

## Aircraft

- Registration: [N1590P](https://openairdocs.org/aircraft/N1590P), registered now, S/N 18-3755, built 1954 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-135](https://openairdocs.org/model/piper-pa-18-135) (registry code 7101820) (OpenAirDocs)
- Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-3755
- Engines: LYCOMING O-320-A2A 150 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Larry Dudden
- Airworthiness certificate: Standard, Normal
- Departed: CPR, CASPER, WY
- Airport: WRL, Worland Muni, runway 28, 3,000 × 100 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: front; flight hours: 346 total, 179 in this make and model, 341 as pilot in command, 27 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 12 knots, gusting 28
- Visibility: 40 statute miles
- Lowest ceiling: 10,000 ft broken
- Temperature: 82 °F, dew point 46 °F
- Altimeter: 29.00 inHg

## 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 19860808038179A](https://openairdocs.org/incident/19860808038179A), Aug 8, 1986: Piper PA18135, Worland, WY, Destroyed. The aircraft was blown over during landing rollout.

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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