News release

Investigation report: Fatal collision with terrain in Diamond Valley, Alberta

The Transportation Safety Board of Canada (TSB) is an independent agency that advances transportation safety by investigating occurrences in the air, marine, pipeline and rail modes of transportation.

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TSB investigator and RCMP constable at the scene of the fatal glider accident near Black Diamond / Cu Nim Aerodrome, Alberta, on 29 May 2024 (Source: TSB)

Investigation report: Fatal collision with terrain in Diamond Valley, Alberta

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Deployment

TSB is deploying a team of investigators following an aircraft accident at Halifax Stanfield International Airport, Nova Scotia

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Figure 4. North rail from the roadbed approaching the bridge showing grinding marks, circled in yellow (Source: TSB)

Undetected rail flaw led to broken rail and derailment near Dunsinane, New Brunswick

Stall, spin, and collision with terrain Privately registered Sportinė Aviacija ir Ko LAK-17B FES (glider), C-FMXC Black Diamond/Cu Nim Aerodrome, Alberta, 1.8 NM SE


Main-track train derailment Canadian National Railway Company Freight train L59411-30 Mile 32.7, Sussex Subdivision Near Dunsinane, New Brunswick


Aft fuselage strike and hard landing WestJet Encore Ltd. Bombardier Inc. DHC-8-402, C-GJWE Calgary International Airport (CYYC), Alberta


Rescue operation and subsequent loss of life Fishing vessel Mucktown Girl and Canadian Coast Guard ship Jean Goodwill 87.5 nautical miles southeast of Canso, Nova Scotia


Runway overrun Porter Airlines Inc. De Havilland Aircraft of Canada Ltd. DHC-8-402, C-GLQB Sault Ste. Marie Airport (CYAM), Ontario


Train derailment Canadian National Railway Company (CN) Mile 69, St-Hyacinthe Subdivision Longueuil, Quebec


Collision with terrain Privately registered  Piper PA-28-180, C-GGOR Brisco, British Columbia, 2 NM W


Collision with terrain 1401380 Ontario Limited (dba Wilderness North Air) Cessna 208B Caravan, C-GMVB Nakina Airport, Ontario, 30.8 NM NNW


Mooring accident Roll-on/roll-off ferry Madeleine II Cap-aux-Meules, Quebec


Collision with terrain Great Slave Helicopters 2018 Ltd. Bell Textron Inc. 212 Fort Good Hope Airport (CYGH), Northwest Territories