# NTSB SEA90LA058: Piper PA18-150, N83681, Redmond, OR, March 28, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 28, 1990, 09:30 local (17:30 UTC)
- Place: Redmond, OR
- Coordinates: 44.260223, -121.220977 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.2602&lon=-121.2210&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 12, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41180
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA90LA058
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41180/pdf
- Page: https://openairdocs.org/ntsb/SEA90LA058

## Probable cause

PILOT DID MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE DURING THE TAKEOFF GROUND RUN. THE PILOT WAS UNABLE TO ADEQUATELY CORRECT THE SITUATION BEFORE THE AIRPLANE EXITED THE RUNWAY AND GROUND LOOPED RESULTING IN THE COLLAPSE OF THE MAIN LANDING GEAR.

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - directional control - not maintained, pilot in command (cause)
  - remedial action - inadequate, pilot in command (contributing factor)
  - ground loop/swerve - uncontrolled, pilot in command (contributing factor)
- Main gear collapsed, takeoff - roll/run

## Analysis

DURING THE TAKEOFF GROUND ROLL, THE AIRPLANE BEGAN TO VEER TO THE LEFT. THE PILOT WAS UNABLE TO REGAIN CONTROL OF THE AIRPLANE BEFORE IT EXITED THE RUNWAY AND GROUND LOOPED TO THE RIGHT COLLAPSING THE MAIN LANDING GEAR.

## Aircraft

- Registration: [N83681](https://openairdocs.org/aircraft/N83681), registered now, S/N 18-7709119 (OpenAirDocs)
- Reported make and model: PIPER PA18-150
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-7709119
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Tognoli, Steve
- Airport: RDM, Roberts Fld, runway 10, 6,999 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 55; flight engineer, commercial, flight instructor, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; flight hours: 15,000 total, 200 in this make and model, 18,854 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- 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 19900328011789A](https://openairdocs.org/incident/19900328011789A), Mar 28, 1990: Piper PA18150, Redmond, OR, Substantial damage. Ground looped on takeoff. Collapsed right landing gear.

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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