# NTSB SEA82DA077: Robinson R-22, N1KH, Hillsboro, OR, March 21, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: March 21, 1982, 14:30 local (21:30 UTC)
- Place: Hillsboro, OR
- Coordinates: 45.439643, -122.960128 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.4396&lon=-122.9601&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 21, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71026
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA82DA077
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71026/pdf
- Page: https://openairdocs.org/ntsb/SEA82DA077

## Sequence of events

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

- Roll over, hover
  - autorotation - attempted, pilot in command (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)

## Analysis

THE INSTRUCTOR PILOT WAS DEMONSTRATING A HOVERING AUTOROTATION TO THE STUDENT FROM APPROXIMATELY AN 18 INCH ALTITUDE. SHORTLY AFTER TOUCHDOWN, WHICH WAS LEVEL AND WITHOUT MOVEMENT IN ANY DIRECTION, THE AIRCRAFT STARTED TO ROLL TO THE LEFT. THE PILOT REPORTED INSUFFICIENT CONTROL AVAILABLE TO STOP THE ROLL AND SUBSTANTIAL DAMAGE RESULTED WHEN THE MAIN ROTOR BLADES CONTACTED THE GROUND. UPON EXITING THE HELICOPTER THE PILOT NOTICED A STRONG WIND FROM THE RIGHT.

## Aircraft

- Registration: N1KH (not matched to a registry record)
- Reported make and model: ROBINSON R-22
- Category: Helicopter
- Serial number: 0184
- Airframe hours: 150
- Engines: LYCOMING O-320 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Kitti Hawk, Inc.
- Registered owner: Kitti Hawk, Inc.
- Departed: 12, HILLSBORO, OR
- Destination: 12, HILLSBORO, OR
- Airport: 12, Willamette Valley

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 10,500 total, 45 in this make and model, 8,500 as pilot in command, 70 in the last 90 days, 30 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 7 knots
- Visibility: 30 statute miles
- Temperature: 163 °F
- Altimeter: 30.00 inHg
- Observed at: HIO, 5 nm away

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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