The Canadian Transportation Sanctuary Board (TSB) has suggested that all commercially operated de Havilland DHC-2 Beaver genre aircraft should be equipped with a stall warning system.
TSB has also entreated Transport Canada to make its suggestion mandatory for Beaver-type aircraft direct commercially in the country.
The recommendation was given after completing an investigation of a floatplane explosion that occurred in August 2015 near Tadoussac, Quebec, Canada.
“A play for time warning system on board all commercially operated de Havilland DHC-2 aircraft will dispose cede pilots and passengers a last defence against this type of diminution of control.”
Taking place during a sightseeing flight, the incident trashed the aircraft and fatally injured all the six occupants.
During its investigation into the fact, TSB found that the pilot made a low-altitude turn that commences to an aerodynamic stall and caused the aircraft to enter a spin, where the aircraft pivots and descends vertically.
TSB noted that a spin does not cause an misadventure if it occurs at a sufficient altitude for the pilot to regain control of the aircraft.
TSB moderate Kathy Fox said: “In this accident, the aircraft had no stall warning arrangement.
“Despite the pilot’s considerable experience, and even though he was an instructor on this aircraft kind, he did not perceive that a stall was imminent when he made the turn.”
Canada currently has 382 write down DHC-2 aircraft, of which 223 are used in commercial operations.
Fox combined: “A stall warning system on board all commercially operated de Havilland DHC-2 aircraft ordain give pilots and passengers a last defence against this paradigm of loss of control.”
In 2013, TSB recommended Transport Canada to facilitate the placement of lightweight flight data recorders on sightseeing planes to help the advice providers to monitor how their aircraft are being flown.