# NTSB DEN82DA152: Cessna 172N, N6476G, Lander, WY, August 3, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: August 3, 1982, 11:00 local (17:00 UTC)
- Place: Lander, WY
- Coordinates: 42.829875, -108.719146 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.8299&lon=-108.7191&mi=10
- Phase of flight: [Unknown](https://openairdocs.org/ntsb-phases/990) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 3, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71356
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN82DA152
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71356/pdf
- Page: https://openairdocs.org/ntsb/DEN82DA152

## Analysis

THE PILOT REPORTED THAT THE AIRCRAFT SUDDENLY VEERED TO THE RIGHT AFTER HE HAD SLOWED TO ABOUT 30 TO 35 KTS. AN EXAMINATION REVEALED THAT THE NOSE GEAR FORK HAD FAILED IN TWO PLACES. THE BREAKS WERE JUST BELOW THE STRUT ATTACHMENT POINT AND DIRECTLY ACCROSS FROM ONE ANOTHER. SUBSEQUENTLY, THE NOSEWHEEL SEPARATED AND THE NOSE GEAR COLLAPSED. THE AIRCRAFT THEN TRAVELED ALONG ON ITS NOSE, VEERED OFF THE RUNWAY, AND STRUCK AN IRRIGATION DITCH. IT WAS NOTED THAT THE AIRCRAFT HAD BEEN USED EXTENSIVELY FOR STUDENT TRAINING AND WAS REGULARLY OPERATED INTO ROUGH AND UNIMPROVED FIELDS.

## Sequence of events

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

- Airframe/component/system failure/malfunction, unknown
  - landing gear,nose gear assembly - failure,total (cause)
  - landing gear,wheel - separation
- Nose gear collapsed, landing - roll
  - landing gear,nose gear - overload
- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command
  - ground loop/swerve - uncontrolled, pilot in command
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch (contributing factor)

## Aircraft

- Registration: [N6476G](https://openairdocs.org/aircraft/N6476G), registered now, S/N 17273601, 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: 17273601
- Airframe hours: 1252
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: D & Z Aviation, Inc.
- Registered owner: D & Z Aviation, Inc.
- Departed: SD54, MUD BUTTE, SD
- Destination: ANGIER, NC
- Airport: LND, Hunt, runway 21, 5,100 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; student; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 38 total, 31 in this make and model, 17 as pilot in command, 17 in the last 90 days, 15 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 40° at 60 knots
- Visibility: 60 statute miles
- Temperature: 174 °F
- Altimeter: 29.00 inHg
- Observed at: LND

## 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 19820803034769A](https://openairdocs.org/incident/19820803034769A), Aug 3, 1982: Cessna 172N, Lander, WY, Substantial damage. Aircraft veered off runway and ran through ditch during landing. Nose fork may have been damaged before accident.

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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