Project 10073 Record Card — Sighting near Cape Makkovik, 17 April 1958

This document consists of a Project 10073 record card and associated teletype correspondence regarding an unidentified aerial phenomenon reported on April 17, 1958. The incident occurred at 0655Z, approximately 10 miles south of Cape Makkovik, Canada, at coordinates 5508 N 5850 W. The object was described as a round, red, blinking light, roughly the size of a pea. It was tracked by the 923rd AC&W radar unit and observed visually for approximately 10 minutes. The object was noted to have moved 46 degrees during the observation period and was observed to be south-bound, making a detour around an iceberg. Weather conditions at the time were clear with 15 miles of visibility. The report includes a note that an intercepter sighted an icebound trawler at the position where the object faded from radar. The duty controller, Captain A. W. Peter, suggested the object was likely a helicopter operating from the icebreaker. This conclusion was supported by the Aerospace Studies Institute, which noted that the object was observed to be very close to the ground or water and exhibited generally slow speed, consistent with a helicopter. The documentation includes technical details such as radar bearings and meteorological data, alongside handwritten annotations and internal assessments confirming the likely identification of the object as a helicopter.