Greenland unidentified aerial event — November 1951

A gradually lighting and dimming object was observed from the aircraft which was at 5,000 ft. altitude. DEPARTMENT OF THE AIR FORCE STAFF MESSAGE DIVISION INCOMING CLASSIFIED MESSAGE FROM: CG ARCTIC REGION, AWDD, MGMT TO: DIRECTOR OF INTELLIGENCE, USAF FOR: CHG 23 NOV 51 SUBJECT: ROUND-UP REPORT ON UFO SIGHTINGS IN THE GREENLAND AREA DETAILS: ON 25 NOV 51 APPROX 1800L PILOT OF AC9 WHILE ON ROUTINE PATROL OBS A BRILLIANTLY LIGHTED OBEJCT FLYING AT HIGH ALTITUTE AND HIGH SPEED AT APP 25,000 FT. OBJECT OBSERVED BY PILOT FOR APPROX 2 MIN BEFORE DISAPPEARING FROM VIEW.