# NTSB SEA86LA123: Beech A23-24, N4841B, Sunnyside, WA, May 10, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: May 10, 1986, 11:30 local (18:30 UTC)
- Place: Sunnyside, WA
- Coordinates: 46.439331, -119.909744 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.4393&lon=-119.9097&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40404
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA123
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40404/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA123

## 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 - crosswind (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - dirt bank/rising embankment (contributing factor)
- Nose gear collapsed, landing - roll

## Analysis

AFTER COMPLETING SEVERAL TOUCH AND GOES, THE PILOT LOST CONTROL OF THE AIRCRAFT ON LANDING ROLLOUT DUE TO A LIGHT GUSTING CROSSWIND. THE PILOT WAS UNABLE TO AVOID DEPARTING THE RUNWAY TO THE LEFT STRIKING A FOUR FOOT EMBANKMENT COLLAPSING THE NOSE GEAR.

## Aircraft

- Registration: [N4841B](https://openairdocs.org/deregistered/N4841B-1988-11-21), registration cancelled 1988-11-21, S/N MA223 (OpenAirDocs)
- Reported make and model: Beech A23-24
- Registry model: [Beech A23-24](https://openairdocs.org/model/beech-a23-24) (registry code 1151226) (OpenAirDocs)
- Category: Airplane
- Serial number: MA223
- Airframe hours: 2238
- Engines: LYCOMING IO-360-A2B 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mary Arthur
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 1, 1985
- Departed: 1S5, SUNNYSIDE, WA
- Airport: 1S5, Sunnyside, runway 25, 3,400 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 64; student; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 80 total, 72 in this make and model, 33 as pilot in command, 17 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 3 knots, gusting 12
- Visibility: 30 statute miles
- Lowest ceiling: 10,000 ft broken
- Temperature: 50 °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 19860510053269A](https://openairdocs.org/incident/19860510053269A), May 10, 1986: Beech A2324, Sunnyside, WA, Substantial damage. Lost directional control on rollout and veered into an embankment. Solo student reached for boost pump on touchdown.

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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