Air transportation safety investigation A13P0166

Controlled flight into terrain

Air Nootka Ltd.
de Havilland DHC-2 (floatplane) C-GPVB
Hesquiat Lake, British Columbia 3 nm W
16 August 2013

View final report

The occurrence

At 1015 Pacific Daylight Time, the de Havilland DHC-2 (Beaver) floatplane (registration C-GPVB, serial number 871), operated by Air Nootka Ltd., departed Hesquiat Lake, British Columbia, with the pilot and 5 passengers for Air Nootka Ltd.'s water aerodrome base near Gold River, British Columbia. Visibility at Hesquiat Lake was about 2 ½ nautical miles in rain, and the cloud ceiling was about 400 feet above lake and sea level. Approximately 3 nautical miles west of the lake, while over Hesquiat Peninsula, the aircraft struck a tree top at about 800 feet above sea level and crashed. Shortly after the aircraft came to rest, a post-crash fire developed. All 6 persons on board survived the impact, but the pilot and 1 passenger died shortly after. A brief 406 megahertz emergency locator transmitter signal was transmitted, and a search and rescue helicopter recovered the survivors at about 1600.

Media materials

News release

Deployment notice

Investigation information

Map showing the location of the occurrence

Investigator-in-charge

Travis Shelongosky has been involved in aviation since childhood. The son of a Canadian Forces fighter pilot, he was building and flying model aircraft before he was a teenager, and hang gliding by age 15. Mr. Shelongosky is a licensed pilot and a graduate of the British Columbia Institute of Technology's Aircraft Maintenance Engineer (AME) program. After receiving his AME licence, he worked for Central Mountain Air and Harbour Air maintaining a variety of aircraft, including the Beech 1900, Douglas DC-3, de Havilland DHC-2 and DHC-3, and Cessna 180 and 185. He also built, flies and maintains an amateur-built aeroplane.

Mr. Shelongosky joined the TSB as a technical investigator in 1998 and became a senior investigator in 2001. He has participated in over 70 class 2 or 3 investigations, 15 of them as investigator-in-charge. During his tenure with the TSB, his aviation education has continued with on-the-job learning as well as numerous courses ranging from material failure analysis to investigative interviewing.

Photos

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Class of investigation

This is a class 3 investigation. These investigations analyze a small number of safety issues, and may result in recommendations. Class 3 investigations are generally completed within 450 days. For more information, see the Policy on Occurrence Classification.

TSB investigation process

There are 3 phases to a TSB investigation

1. Field phase: a team of investigators examines the occurrence site and wreckage, interviews witnesses and collects pertinent information.
2. Examination and analysis phase: the TSB reviews pertinent records, tests components of the wreckage in the lab, determines the sequence of events and identifies safety deficiencies. When safety deficiencies are suspected or confirmed, the TSB advises the appropriate authority without waiting until publication of the final report.
3. Report phase: a confidential draft report is approved by the Board and sent to persons and corporations who are directly concerned by the report. They then have the opportunity to dispute or correct information they believe to be incorrect. The Board considers all representations before approving the final report, which is subsequently released to the public.

For more information, see our Investigation process page.

The TSB is an independent agency that investigates air, marine, pipeline, and rail transportation occurrences. Its sole aim is the advancement of transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.