Air transportation

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Air transportation safety investigation report

Swissair Flight 111 Abbreviated Investigation Chronology

September 2, 1998: At 21:18 Atlantic daylight time (ADT), Swissair Flight 111 (SR 111), a McDonnell Douglas MD-11 aircraft, departs John F. Kennedy Airport, New York, en route to Geneva, Switzerland, with 215 passengers and 14 crew members on board. Approximately 53 minutes after take-off, while cruising at 33 000 feet, the crew notices an unusual smell in the cockpit.

Safety communications related to TSB investigation A21C0038: April 2021 collision with terrain on Griffith Island, Nunavut

The occurrence

Late afternoon on 25 April 2021, the Great Slave Helicopters 2018 Ltd. Airbus Helicopters AS350 B2 (A21C0038) departed from a remote camp on Russell Island, Nunavut (NU), on a day visual flight rules (VFR) flight to Resolute Bay Airport, NU. On board were the pilot, an aircraft maintenance engineer, and a biologist.

Findings from TSB investigation A21C0038: April 2021 collision with terrain on Griffith Island, Nunavut

Investigations conducted by the Transportation Safety Board of Canada (TSB) are complex since an accident rarely results from a single cause. In the case of the 2021 fatal collision with terrain of an Airbus Helicopters AS350 helicopter on Griffith Island, Nunavut (A21C0038), several factors led to the accident. The seven findings below detail the causes and contributing factors that led to this occurrence. Additionally during the course of the investigation, the TSB also made six findings as to risk.

Backgrounder: safety communications arising from Safety Issue Investigation A18Q0140 into aircraft landings at airports undergoing construction

The investigation

This safety issue investigation (A18Q0140) examines a series of 18 occurrences that took place at certain airports undergoing construction in Quebec and Nunavut between 2013 and 2018. In these occurrences, the width of the runway was reduced rather than the length. In all but two cases, aircraft had manoeuvred on the closed portion of the runway during takeoff or landing.

The Transportation Safety Board of Canada (TSB) is issuing a Board recommendation and a safety concern as a result of this safety issue investigation.

Backgrounder: A17Q0030

Investigation findings for TSB investigation A17Q0030 Mid-air collision near Montréal/St-Hubert Airport, Quebec, March 2017

Investigations conducted by the Transportation Safety Board of Canada (TSB) are complex – an accident is never caused by just one factor. The March 2017 mid-air collision near the Montréal/St-Hubert Airport, Quebec was no exception. There were many factors that caused this accident, the details of which are contained in the 7 findings as to causes and contributing factors.

Backgrounder

TSB recommendations to address the risk of runway incursions

Risk of collisions on runways between the parallel runways on the south complex of Toronto/Lester B. Pearson International Airport (A17O0038)

The Transportation Safety Board of Canada (TSB) has identified the risk of collisions on runways as a serious risk in the Canadian aviation sector; this issue has persisted on the TSB’s Watchlist since 2010.

Backgrounder

Air transportation safety investigation Report A17O0038

Runway incursions between the parallel runways on the south complex of Toronto/Lester B. Pearson International Airport

The Transportation Safety Board of Canada (TSB) has identified the risk of collisions on runways as a serious risk in the Canadian aviation sector; this issue has persisted on the TSB’s Watchlist since 2010.