# NTSB SEA85LA005: Cessna 172N, N739UW, Ashford, WA, October 7, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 7, 1984, 14:00 local (21:00 UTC)
- Place: Ashford, WA
- Coordinates: 46.880245, -121.739677 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.8802&lon=-121.7397&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40076
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA005
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40076/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA005

## Analysis

THE ACFT GROUND LOOPED DURING A LANDING IN A GUSTY X-WIND. AFTER DIRECTIONAL CONTROL WAS LOST THE ACFT VEERED OFF THE RWY STRIKING TREES. NO ACCIDENT REPORT FORM WAS FILED BY THE PLT.

## Sequence of events

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

- Loss of control - on ground/water, landing - flare/touchdown
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - weather condition - gusts (contributing factor)
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - not corrected, pilot in command (contributing factor)

## Aircraft

- Registration: [N739UW](https://openairdocs.org/deregistered/N739UW-1989-09-12), registration cancelled 1989-09-12, S/N 17270826 (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Category: Airplane
- Serial number: 17270826
- Engines: LYCOMING O-320-H2AP 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Norman Grier
- Airworthiness certificate: Standard, Normal
- Departed: S36, KENT, WA
- Destination: S14, ASHFORD, WA
- Airport: S14, Hewitt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; airline transport; airplane ratings: single-engine land; instrument ratings: airplane; medical: unknown, unknown; seat: left

## Weather

- Conditions: Visual (VMC), Day
- Wind: 200° at 15 knots, gusting 20
- Visibility: 25 statute miles
- Lowest ceiling: 10,000 ft broken
- Temperature: 75 °F, dew point 55 °F
- Altimeter: 30.00 inHg
- Observed at: OLM, 23 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 19841007074969A](https://openairdocs.org/incident/19841007074969A), Oct 7, 1984: Cessna 172N, Ashford, WA, Substantial damage. Lost directional control landing in a gusty wind. Left the runway and struck trees.

## Other investigations on N739UW (1)

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.

- [NTSB SEA86LA057](https://openairdocs.org/ntsb/SEA86LA057), Feb 12, 1986: Cessna 172 (N739UW), Renton, WA, substantial damage

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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