# NTSB SEA91LA196: Piper PA-18-150, N2322A, Roy, MT, July 28, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 28, 1991, 08:15 local (14:15 UTC)
- Place: Roy, MT
- Coordinates: 47.420425, -108.979698 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.4204&lon=-108.9797&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 13, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41502
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA196
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41502/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA196

## Probable cause

THE FAILURE OF THE PILOT TO MAINTAIN CLEARANCE FROM OBSTACLES DURING TAKEOFF.

## Sequence of events

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

- On ground/water collision with object, takeoff - roll/run
  - clearance - not maintained, pilot in command (cause)
- On ground/water encounter with terrain/water, other

## Analysis

THE ACFT IMPACTED A FENCE POST DURING TAKEOFF GND RUN ON A ROAD, GND LOOPED AND IMPACTED TERRAIN.

## Aircraft

- Registration: [N2322A](https://openairdocs.org/aircraft/N2322A), registered now, S/N 18-1898, built 1952 (OpenAirDocs)
- Reported make and model: PIPER PA-18-150
- Registry model: [Piper PA-18A-135](https://openairdocs.org/model/piper-pa-18a-135) (registry code 7101822) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-1898
- Engines: LYCOMING O-320 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Edward R. Peigneux
- Registered owner: Edward R. Peigneux
- Airworthiness certificate: Standard, Normal
- Destination: MLK, MALTA, MT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; flight instructor, airline transport; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 7,900 total, 1,500 in this make and model, 7,800 as pilot in command, 27 in the last 90 days, 23 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 8 knots
- Visibility: 45 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 64 °F, dew point 45 °F
- Altimeter: 30.00 inHg
- Observed at: GTF, 100 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 19910728030939A](https://openairdocs.org/incident/19910728030939A), Jul 28, 1991: Piper PA18150, Roy, MT, Substantial damage. Wing struck a fence post while attempting takeoff on a narrow dirt road.

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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