# NTSB SEA93LA058: Boeing A75N1, N56843, Bend, OR, January 31, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 31, 1993, 11:45 local (19:45 UTC)
- Place: Bend, OR
- Coordinates: 44.069507, -121.250091 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.0695&lon=-121.2501&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 13, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 42981
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA93LA058
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42981/pdf
- Page: https://openairdocs.org/ntsb/SEA93LA058

## Probable cause

DIRECTIONAL CONTROL NOT MAINTAINED AND GROUND LOOP/SWERVE NOT CORRECTED BY THE PILOT IN COMMAND.

## 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
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - not corrected, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
- Nose over, landing - roll

## Analysis

THE AIRCRAFT SWERVED OFF THE LEFT SIDE OF A 75 FT. WIDE RUNWAY DURING LANDING GROUND ROLL, IMPACTED A SNOW BERM, AND NOSED OVER.

## Aircraft

- Registration: [N56843](https://openairdocs.org/aircraft/N56843), registered now, S/N 75-536, built 1940 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 75-536
- Airframe hours: 3076
- Engines: P&W R-985-AN1 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Walsh, Don R.
- Registered owner: Sharkey, Edward L.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, August 1, 1992
- Airport: S07, Bend Municipal, runway 16, 5,005 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 24,000 total, 5 in this make and model, 16,000 as pilot in command, 32 in the last 90 days, 15 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 3 knots
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 28 °F, dew point 16 °F
- Altimeter: 30.00 inHg
- Observed at: RDM, 10 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 19930131001179A](https://openairdocs.org/incident/19930131001179A), Jan 31, 1993: Boeing A75N1, Bend, OR, Substantial damage. Swerved into a snowbank and nosed over on landing roll. Low time in tailwheel aircraft. Aircraft not airworthy.

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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