PROJECT 10073 RECORD CARD: Cartwright, Labrador, 13 March 1951

On 13 March 1951, at 2045Z, an unidentified aircraft was reported heard over the reporting station at Cartwright, Labrador, located at 53 degrees 40 minutes North latitude and 56 degrees 50 minutes West longitude. The aircraft was described as moving in a South East direction. Following the report, the Northeast Air Command (NEAC) conducted an investigation, which included checking flight plans and position reports with Gander Air Traffic Control, Harmon Airways, and Argentia Naval Radio. These checks yielded no information regarding any aircraft in the Cartwright area at that time. The report notes that attempts to contact the aircraft via radio were unsuccessful. It was suggested that ionic disturbances in the area may have prevented the aircraft from reporting its position or filing a flight plan. The incident was formally documented on a Project 10073 record card. The final conclusion reached by the military authorities was that the event was a report of an aircraft and explicitly 'not a UFO report.' The incident was subsequently carried in military records as an 'Unknown a/c' by NEAC. A follow-up message (EN 0429) confirmed that a check of all bases and aircraft control centers within the NEAC area revealed no aircraft over the Cartwright area on that date, and the aircraft remained unidentified within the command.