Incident #236 Sighting Report — Hickam Field, Hawaii, 4 January 1949

This document details Incident #236, a UFO sighting reported on 4 January 1949 at Hickam Field, Hawaii. The primary witness was a Captain in the 1810th AACS Group, an experienced twin-engine pilot and communications officer. At approximately 1407 local time, the witness observed a flat, white, elliptical object that appeared to be the size of an AT-6 aircraft. The object was observed for 28 minutes, during which it performed rhythmic undulations, circled the area, and eventually departed at an accelerated speed while climbing at a 25-degree angle. The witness reported that the object had a non-reflecting surface but emitted a regular 'whitish reflection' or blink. No sound was heard, and no exhaust trail was visible. The witness, who was standing outside the Pacific Air Command Headquarters, was deemed highly credible by the investigating officer, Captain George E. Murray. The report includes extensive administrative correspondence between the 1810th AACS Group, the Air Materiel Command, and the Airways and Air Communications Service regarding the investigation and the submission of formal statements. The Air Materiel Command's official conclusion was that the evidence did not lead to an explanation, noting that if the object were truly the size of an AT-6 at 3,000 feet, more detail should have been observable. The file also contains references to other incidents and administrative tracking forms used by the Air Force to manage these reports under the auspices of Project Grudge and later Project Blue Book.