# NTSB DEN82FA175: Convair 340, N477KW, Del Norte, CO, August 25, 1982

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: August 25, 1982, 13:30 local (19:30 UTC)
- Place: Del Norte, CO
- Coordinates: 37.669391, -106.349411 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.6694&lon=-106.3494&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report August 25, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70435
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN82FA175
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70435/pdf
- Page: https://openairdocs.org/ntsb/DEN82FA175

## Analysis

ACCORDING TO THE FLIGHT CREW, VMC HAD DETERIORATED INTO IMC OVER THE MOUNTAINS. AFTER ENTERING IFR CONDITIONS THE ACFT IMPACTED A MOUNTAIN RIDGE.

## Sequence of events

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

- In flight encounter with weather, cruise - normal
  - weather condition - clouds (contributing factor)
  - vfr flight into imc - continued, pilot in command (cause)
- In flight collision with terrain/water, climb
  - terrain condition - mountainous/hilly (contributing factor)

## Aircraft

- Registration: N477KW (not matched to a registry record)
- Reported make and model: CONVAIR 340
- Category: Airplane
- Serial number: 210
- Airframe hours: 37102
- Engines: P & W R-2800-CB3 2800 horsepower reciprocating
- Damage: Substantial damage
- Flight: Ferry, Part 91
- Operator: Air Resorts Airlines
- Registered owner: National Services Inc.
- Departed: C, PUEBLO, CO
- Destination: C, CARLSBAD, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; flight instructor, airline transport, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; flight hours: 11,000 total, 670 in this make and model, 180 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Temperature: 131 °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 19820825041269A](https://openairdocs.org/incident/19820825041269A), Aug 25, 1982: Cvac 340CVAC, Del Norte, CO, Destroyed. After entering clouds, aircraft impacted mountain during an attempted climb to VMC 10 miles west of wolf creek pass

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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