De Havilland DHC-3 N455A

Summary

On 9 August 2010 at about 22:45 local time, a De Havilland DHC-3 registered N455A, operated by General Communication Corporation (GCI), was involved in an accident near Aleknagik, Alaska, United States. 9 people were on board and 5 died, 4 were seriously injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

9 August 2010 at 22:45

Classification

Accident

Location

Aleknagik, Alaska, United States

Coordinates

59.3239, -158.3708

Aircraft

De Havilland DHC-3

Registration

N455A

Category

Airplane

Engines

1

Operator

General Communication Corporation (GCI)

Operating rule

Part 91: General Aviation

Purpose of flight

Other Work Use

Phase of flight

Not recorded

Route

Aleknagik → Dillingham

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ANC10MA068

5 people died.

The pilot's temporary unresponsiveness for reasons that could not be established from the available information. Contributing to the investigation's inability to determine exactly what occurred in the final minutes of the flight was the lack of a cockpit recorder system with the ability to capture audio, images, and parametric data.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The Safety Board’s full report is available at http://www.ntsb.gov/publictn/A_Acc1.htm. The Aircraft Accident Report number is NTSB/AAR-11/03. On August 9, 2010, about 1442 Alaska daylight time, a single-engine, turbine powered, amphibious float-equipped de Havilland DHC-3T airplane, N455A, impacted mountainous, tree-covered terrain about 10 nautical miles (nm) northeast of Aleknagik, Alaska. The airline transport pilot and four passengers received fatal injuries, and four passengers received serious injuries. The airplane sustained substantial damage, including deformation and breaching of the fuselage. The flight was operated by GCI Communication Corp. (GCI), of Anchorage, Alaska, under the provisions of 14 Code of Federal Regulations Part 91. About the time of the accident, meteorological conditions that met the criteria for marginal visual flight rules were reported at Dillingham Airport, Dillingham, Alaska, about 18 nm south of the accident site. No flight plan was filed. The flight departed about 1427 from a GCI-owned private lodge on the shore of Lake Nerka and was en route to a remote sport fishing camp about 52 nm southeast on the Nushagak River.

Quoted verbatim from the NTSB record.