Unsecured tool bag may have caused Ontario helicopter crash that killed 4:TSB
An improperly secured tool bag hit the rear rotor of a helicopter before the aircraft crashed in eastern Ontario, killing four people on board, the Transportation Safety Board said Thursday, as it issued a warning on the risks of unsecured cargo.
The board said its preliminary investigation into the Dec. 14 crash near Tweed, Ont., suggested the tool bag being carried on a platform outside the Hydro One helicopter was the main cause of the deadly incident.
Shortly before the crash, the helicopter’s pilot picked up three linemen at the base of a high-power transmission tower and was transporting them to a nearby staging area, the TSB said.
A few bags used for tools and supplies were being carried on the platform extending out of the right side of the helicopter. The bags are normally secured with double-lock carabiners, the TSB said.