Documents / Official release
This 1949 War Department file 319.1, Flying Discs, is a set of U.S. Air Force Flight Service Center reports on unidentified flying objects sent to the Air Materiel Command at Wright-Patterson. The reports cover sightings over Kansas City and Olathe, Rome, Seattle, Greenville, Spokane, Medford, Columbus, Portland, Mountain Home, Jackson and Chanute AFB. Most remain unexplained, but the Greenville object was found to be a weather balloon. The file also holds a 1948 order telling units to report disc sightings.
From the source:Release of 2026-05-08 Incident: 1/9/50, N/A. This file primarily contains incident reports on Unidentified Flying Objects (UFOs) written in compliance with the 1948 Flight Service Regulation (FSR) 200-4. The incidents were witnessed by military sources, as well as by some Civilian Aviation Authority (CAA) ones. The reports typically include information such as dates, locations, weather, and altitude, plus detailed descriptions of appearance and movement. Some messages from the Military Air Transport Service (MATS) and Army Airways Communications System (AACS) are also included, as well as additional military intelligence reports, several diagrams, and a report from a weather station in Japan.
“Headquarters”23 pages
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WGI 350
SUBJECT: Semi-Monthly Intelligence Summary
TO : Commanding General Military Air Transport Service Washington 25, D.C.
In accordance with provisions of letter, Headquarters, Air Weather Service, subject as above, file A-2, WEA 350.05, the following report is submitted for the period ending 15 June 1949.
. During a test hop of an RB 29, a radar operator from the 514th Reconnaissance Squadron (VLR) Weather made the following observations and report:
On Monday, the 2nd of May, 1949, we took off in aircraft number 45-21824 for the purpose of test hopping the ship. Take off was made at approximately 1500K. The radar set was turned on at approximately 1515K and was tuned in. Guam and Rotata were picked up by radar and after about ten (10) minutes of operation some type of interference was noticed on the scope. It came in in the same form as a regular range marker except that the pulses were approximately ten (10) miles apart. They only covered the area covered by Guam plus about five (5) degrees on either side of the island. The scope was on the one hundred (100) mile range.
As the range was reduced the interference grew larger on the scope. On an attached sheet of paper there is a sketch of the scope as it appeared with the interference drawn in. I do not believed that what was picked up on this flight was intentional jamming.
## COMMENT
The operator who made the above observation is one of the 514th Reconnaissance Squadrons' most experienced radar operators and is very proficient in the operation of radar equipment. He checked the set after landing and could find no malfunctions.
2 b. On the 8th of June 1949, at a position of $ 1 2 0^{\circ} $ $ 2 5^{\prime} \mathrm{N} $ and $ 1 4 0^{\circ} $ $ 2 0^{\prime} \mathrm{E} $ an RB 29 aircraft from the 514th Reconnaissance Squadron made the following sighting:
At 1109Z while flying a heading of 80 degrees, at 18500 ft on a routine Vulture Baker weather reconnaissance mission, a white billowing substance was sighted at an altitude of 30000 to 35000 ft. The sighting was made by two crew members, lst Lt. Ernest Swanson, weather observer and M/Sgt Walter Rogers engineer. What appeared to be a traveling contrail was Not linked to a story yet.
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 143 pages are in the text index: search them above, or from the library's search.