# NTSB ANC83LA086: Cessna 170, N2487D, Central, AK, May 23, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 23, 1983, 14:15 local (22:15 UTC)
- Place: Central, AK
- Coordinates: 65.789115, -144.200256 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=65.7891&lon=-144.2003&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4123
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC83LA086
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4123/pdf
- Page: https://openairdocs.org/ntsb/ANC83LA086

## 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 - unfavorable wind (contributing factor)
  - weather condition - crosswind (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - inadvertent, pilot in command
- Main gear collapsed, landing - roll
  - landing gear,main gear - overload

## Analysis

THE PLT REPORTED THAT DURING ARRIVAL, HE CHECKED THE WINDSOCK & NOTED A X-WIND CONDITION OF 10 KTS OR LESS. HOWEVER, HE SAID THE WINDSOCK WAS BEING BLOWN FROM SIDE TO SIDE. WHILE LANDING ON RWY 26, THE ACFT VEERED TO THE RIGHT. SUBSEQUENTLY, THE LEFT GEAR FAILED. THE PLT REPORTED THAT THE WIND WAS GUSTY.

## Aircraft

- Registration: [N2487D](https://openairdocs.org/aircraft/N2487D), registered now, S/N 20639, built 1952 (OpenAirDocs)
- Reported make and model: CESSNA 170
- 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: 20639
- Airframe hours: 3841
- Engines: CONTINENTAL O-300-A 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Lyle Edward Neff
- Registered owner: James Studer Ben Lumond Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 14, 1982
- Departed: FAI, FAIRBANKS, AK
- Flight plan: VFR
- Airport: CHP, Circle Hot Springs, runway 26, 3,670 × 60 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 363 total, 7 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 10 knots, gusting 15
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 81 °F
- Altimeter: 29.00 inHg

## Other investigations on N2487D (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 ANC91LA141](https://openairdocs.org/ntsb/ANC91LA141), Sep 4, 1991: Cessna 170-B (N2487D), Iowa Ridge, AK, substantial damage. Probable cause: THE PILOT-IN-COMMAND'S FAILURE TO IDENTIFY THE ROUGH AND UNEVEN, UNSUITABLE TERRAIN. CONTRIBUTING TO THE ACCIDENT WAS THE ROUGH AND UNEVEN TERRAIN.
- [NTSB ANC88LA084](https://openairdocs.org/ntsb/ANC88LA084), Jul 9, 1988: Cessna 170B (N2487D), Anchorage, AK, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.