147 Bomber Reconnaissance Squadron (Determined To Defend), RCAF Station, Tofino, British Columbia. Bolingbroke IV aircraft 9031 collided in mid-air with Bolingbroke 9121 during formation flying practice and crashed into the sea off Vancouver Island with the loss of the entire crew of 9031
Warrant Officer Class 2 James Andrew Horton (RCAF) (pilot) Warrant Officer Class 2 William Joseph Toner (RCAF), Warrant Officer Class 2 Henry John Hyde (RCAF) and passenger Private Gerald Joseph Jean (Canadian Army) were all missing, presumed killed and their bodies were not found
Warrant Officer Horton, Warrant Officer Hyde and Warrant Officer Toner are commemorated on the Ottawa Memorial. Private Jean is Commemorated on the Halifax Memorial
Bolingbroke 9121 survived the crash with damage to the port wing but landed safely with no crew lost. Warrant Officer Class 2 J. H. Frey (RCAF) and Warrant Officer Class 2 J. A. Miller (RCAF) were uninjured
The Accident Investigation found pilot error on the part of Warrant Officer Class 2 James Andrew Horton (RCAF) to be the main cause of this accident but also recommended changes to regulations regarding formation flying training flights
Quietus Last Flight, Accident Proneness in WWII, Wartime Aviation Stories on the Canadian Home Front by Anne Gafiuk, Chapter 15