Project 10073 Record Card — Sighting near Prince Christian, Greenland, 29 August 1954

This document comprises a series of military communications and a Project 10073 record card detailing an unidentified aerial phenomenon sighting on 29 August 1954. The incident occurred near Prince Christian, Greenland, at approximately 1405 GMT. The primary witnesses were the crew of a Royal Dutch Airlines DC-4 aircraft (call sign PHDFZ), which was en route to Europe. The crew, including a co-pilot with 12 years of experience and a 2nd engineer, reported observing three or four objects in formation. The objects were described as black or dark in color and lenticular or oval in shape. They were sighted flying parallel to the aircraft's track, positioned between cloud layers. The pilot estimated the objects' speed at 100 knots and noted that they maneuvered and changed course during the ten-minute observation period. The crew reported no contrails, no noise, and no physical interaction. Military authorities confirmed that no GCI or GCA radar contact was made with the objects. The report emphasizes the reliability of the Dutch airline crew, noting that the aircraft commander was an ex-US Navy pilot. The sighting was formally categorized as 'UNIDENTIFIED' by the Air Technical Intelligence Center (ATIC). The documentation includes various teletype messages sent between the 64th Air Division at Pepperrell AFB and other intelligence commands, requesting a check of flight plans for possible correlation, though no explanation was found.