# NTSB SEA85LA221: Cessna 170B, N1930C, Winnemucca, NV, September 21, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 21, 1985, 14:10 local (21:10 UTC)
- Place: Winnemucca, NV
- Coordinates: 41.120445, -118.04956 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.1204&lon=-118.0496&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40244
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA221
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40244/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA221

## 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
  - weather condition - crosswind (contributing factor)
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - weather condition - gusts (contributing factor)
  - weather evaluation - poor, pilot in command (cause)
  - compensation for wind conditions - not used, pilot in command (cause)
  - aborted takeoff - not selected, pilot in command (cause)

## Analysis

THE PLT WAS ATTMEPTING TO DEPART RWY 02 AND THE WIND WAS FROM 300 DEGS AT 15 KTS GUSTING TO 20 KTS. DIRECTIONAL CONTROL OF THE ACFT WAS NOT MAINTAINED AND IT VEERED OFF THE SIDE OF THE RWY DURING THE TAKEOFF GROUND RUN.

## Aircraft

- Registration: [N1930C](https://openairdocs.org/aircraft/N1930C), registered now, S/N 26075, built 1953 (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 26075
- Airframe hours: 3971
- Engines: FRANKLIN O-300-A 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Larry G.Sawatzky
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 22, 1985
- Destination: 032, REEDLEY, CA
- Airport: WMC, Winnemucca Municipal, runway 2, 5,000 × 120 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; commercial; airplane ratings: multi-engine land, single-engine land; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 340 total, 326 in this make and model, 238 as pilot in command, 6 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 15 knots, gusting 20
- Visibility: 50 statute miles
- Lowest ceiling: 12,000 ft broken
- Temperature: 75 °F, dew point 30 °F
- Altimeter: 30.00 inHg
- Observed at: WMC

## 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 19850921073129A](https://openairdocs.org/incident/19850921073129A), Sep 21, 1985: Cessna 170B, Winnemucca, NV, Substantial damage. Lost directional control during gusty crosswind takeoff roll. Veered off side of 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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