# NTSB DEN83LA023: Cessna 170A, N9164A, Durango, CO, November 11, 1982

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: November 11, 1982, 12:00 local (19:00 UTC)
- Place: Durango, CO
- Coordinates: 37.269397, -107.879989 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.2694&lon=-107.8800&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report November 11, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70528
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN83LA023
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70528/pdf
- Page: https://openairdocs.org/ntsb/DEN83LA023

## 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
  - weather condition - crosswind (cause)
  - wind information - not obtained, pilot in command (cause)
  - weather condition - gusts (cause)
  - judgment - poor, pilot in command (cause)
  - go-around - not performed, pilot in command (cause)
  - ground loop/swerve - uncontrolled, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch (contributing factor)

## Analysis

THE PILOT LANDED AT A PRIVATE AIRSTRIP AND LOST CONTROL OF AIRCRAFT IN A CROSSWIND. THE AIRCRAFT DEPARTED THE RUNWAY AND COLLIDED WITH A DITCH. THE PILOT BELIEVED HE LOST CONTROL OF HIS AIRCRAFT BECAUSE OF THE WET RUNWAY AND STRONG CROSSWIND.

## Aircraft

- Registration: [N9164A](https://openairdocs.org/deregistered/N9164A-2013-07-29), registration cancelled 2013-07-29, S/N 19358, built 1950 (OpenAirDocs)
- Reported make and model: CESSNA 170A
- Registry model: [Cessna 170A](https://openairdocs.org/model/cessna-170a) (registry code 2072304) (OpenAirDocs)
- Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 19358
- Airframe hours: 1121
- Engines: CONTINENTAL C-145-2 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: L. Chandler Dunagan
- Registered owner: L. Chandler Dunagan
- Departed: 7E7, CAMP VERDE, AZ
- Destination: EVANSVILLE, IN
- Airport: 5CO0, Animas, runway 19, 5,000 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 72; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 916 total, 24 in this make and model, 6 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 22 knots
- Visibility: 3 statute miles
- Lowest ceiling: 1,500 ft overcast
- Temperature: 90 °F

## Other investigations on N9164A (2)

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 LAX85LA085](https://openairdocs.org/ntsb/LAX85LA085), Dec 25, 1984: Cessna 170A (N9164A), Cottonwood, AZ, substantial damage
- [NTSB LAX81DUK05](https://openairdocs.org/ntsb/LAX81DUK05), Sep 13, 1981: Cessna 170A (N9164A), Cottonwood, AZ, 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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