# NTSB SEA85LA185: Beech B-35, N3729N, Auburn, WA, July 30, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 29, 1985, 17:30 local (Jul 30, 1985, 00:30 UTC)
- Place: Auburn, WA
- Coordinates: 47.310546, -122.220542 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.3105&lon=-122.2205&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40215
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA185
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40215/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA185

## 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)

## Analysis

DIRECTIONAL CONTROL OF THE ACFT WAS LOST FOR UNKNOWN REASONS JUST PRIOR TO ROTATION. THE ACFT THEN VEERED OFF THE RIGHT SIDE OF THE RWY.

## Aircraft

- Registration: N3729N (not matched to a registry record)
- Reported make and model: Beech B-35
- Category: Airplane
- Serial number: D-938
- Engines: CONTINENTAL E-185-1 185 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Don C. Swaw
- Airworthiness certificate: Standard, Normal
- Departed: S50, AUBURN, WA
- Airport: S50, Auburn Municipal

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 84 °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 19850729037569A](https://openairdocs.org/incident/19850729037569A), Jul 29, 1985: Beech 35BEECH, Auburn, WA, Substantial damage. Directional control was lost prior to rotation. Aircraft veered off runway.

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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