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Simulated radar data, colour photos

FAA via National Archives / The Black Vault · 19 pages · text from the file's own layer

This FAA release, obtained through The Black Vault, collects material on the radar data from Japan Air Lines Flight 1628 over Alaska on November 17, 1986. It includes a March 5, 1987 explanation by FAA public affairs officer Paul Steucke, a February 1987 Airway Facilities memo, and Dennis Simantel's analysis attributing the returns to uncorrelated primary and beacon targets, considered normal. It also contains regenerated radar image photos and a Philadelphia Inquirer magazine article on the sighting and the FAA's inconclusive review.

MemorandumU.S. Department
of Transportation
Federal Aviation
Administration
Subject: INFORMATION: Description of Radar Split Image;
AAL-5 Meno of 2/5/87
From Manager, Airway Facilities Division, AAL-400
To Public Affairs Officer, AAL-5
Date :
Reply to
Attn . of
FEB 2 7 1987
'Ihis letter transmits our analysis of the radar targets associated with
JAL flight 1628, on November 17, 1986, arrl supplements discussions we have
had~ what has been referred. to as "split ima.ges".
We concur with the interpretation provided to you by the Alaskan Region
Air Traffic Division.
'Ihe attached Analysis of Uncorrelated Primacy arrl Beacon Targets by Dennis
Sima.ntel covers the subject in :rrore detail, an:l addresses the questions
raised in your letter.
Paul, I appreciate the team approach you have taken to more fully
un:ierstarrl a complex issue. 'Ihe issue is an excellent example of how
"interdeperrlent" we are. If we can provide any more infonnation, please
7LiC.
David F. Morse
Attaclnrent
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Document, cited by the archive. The PDF is mirrored here; the original link is above. 19 pages are in the text index: search them above, or from the library's search.