What happened
A cargo operation departed from Saint-John, New Brunswick, at 13:48 local time, destined for Goose Bay. The flight was carrying a total of four occupants, consisting of one pilot and three passengers. During the flight, the pilot communicated with air traffic control at 14:34 local time, reporting that the aircraft was operating under instrument flight rules (IFR) at an altitude of 7,000 feet in the vicinity of Chatham. At that time, the pilot provided an estimated arrival time over Seven Islands of 15:44.
Shortly after this final radio contact, the aircraft vanished from radar surveillance. Search and rescue operations were initiated to locate the missing plane and its passengers; however, these efforts were halted several days later when no evidence of the wreckage or the individuals on board could be located. The debris was not discovered until 27 August 1953, when it was spotted by a pilot flying for Trans-Gaspesian Airline.
Findings
No specific cause for the disappearance was determined at the time of the initial search, as the loss of radar contact occurred without any prior distress signals or mechanical warnings being transmitted to air traffic control.