# NTSB SEA82DA131: Cessna 172N, N9528G, Roche Harbor, WA, July 29, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 29, 1982, 11:00 local (18:00 UTC)
- Place: Roche Harbor, WA
- Coordinates: 48.529281, -123.06002 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.5293&lon=-123.0600&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 29, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72405
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA82DA131
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72405/pdf
- Page: https://openairdocs.org/ntsb/SEA82DA131

## Sequence of events

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

- Undershoot, approach - vfr pattern - final approach
  - terrain condition (contributing factor)
  - object - animal(s) (contributing factor)
  - distance - misjudged, pilot in command (cause)
  - diverted attention, pilot in command (cause)
  - altitude - misjudged, pilot in command (cause)
  - airspeed - misjudged, pilot in command (cause)
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - rising (contributing factor)
- Nose gear collapsed, landing - flare/touchdown
  - landing gear,nose gear - overload
- Nose over, landing - roll

## Analysis

THE PILOT FLEW TO A PRIVATE AIRSTRIP THAT WAS OPEN TO GRAZING ANIMALS. DURING ARRIVAL, HE MADE A LOW PASS TO CHECK THAT THE RUNWAY WAS CLEAR OF ANIMALS AND OTHER OBSTRUCTIONS. HE THEN CIRCLED TO LAND. DURING FINAL APPROACH, HE NOTICED SHEEP COMING ONTO THE RUNWAY. AT ABOUT THAT TIME, A THROTTLE REDUCTION WAS MADE AND THE PLANE TOUCHED DOWN SHORT OF THE THRESHOLD ON A 10 DEGE UPSLOPE. THE NOSE GEAR COLLAPSED AND THE AIRCRAFT SLID ABOUT 50 FT THEN NOSED OVER.

## Aircraft

- Registration: [N9528G](https://openairdocs.org/deregistered/N9528G-2014-11-24), registration cancelled 2014-11-24, S/N 17273630, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17273630
- Airframe hours: 960
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Aviation Enterprizes, Inc.
- Registered owner: Aviation Enterprizes, Inc.
- Departed: 951, ROCHE HARBOR, WA
- Destination: JOHN'S ISLAND, WA
- Airport: 12, John'S Island, runway 36, 1,250 × 75 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 109 total, 28 in this make and model, 75 as pilot in command, 4 in the last 90 days, 3 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 5 knots
- Visibility: 20 statute miles
- Temperature: 149 °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 19820729047239A](https://openairdocs.org/incident/19820729047239A), Jul 29, 1982: Cessna 172N, Roche Harbor, WA, Substantial damage. Sheep on runway. Closed throttle to land short. Nose wheel severed by impact short of threshold. Airplane nosed over

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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