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733667-001-019-0019
National Archives and Records Administration
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Intelligence summary
This document is a memorandum from the Federal Aviation Administration (FAA) regarding the radar images of Japan Air Lines flight 1628, which experienced intermittent radar images attributed to 'split images'. The FAA seeks clarification on this phenomenon for public communication.
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Jun 15, 1987
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Document Date (year hint) for 733667-001-019-0019
Jun 16, 2026
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Ingestion Date for 733667-001-019-0019
Jun 16, 2026
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Document Record Date for 733667-001-019-0019
Jun 16, 2026
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1,002 characters, transcribed via OCR. Errors reflect the source scan. Compare with the original ↗
Subject:
From:
To:
Q Memorandum
US. Department
of Transportation . ,
Federal Aviation
Administration
A
ACTION: Description of Radar Split Image Oate: February 5, 1987
PUBLIC AFFAIRS OFFICER, AAL-5 primes
Manager, Airways -Facilities, AAL-400
The Alaskan Region FAA Air Traffic Division has informed me that the'
intermitent radar images of Japan Air Lines flight 1628, on November 17,
1986, which occured between Ft. Yukon and Anchorage, are the result of
"split images".
Do you concur with this interpretation? If you do, please provide me
with an easy to understand written description of what a "split Image"
is, how it occurs, approximately how often it occurs, and why it might
have, or did occur on this flight segment of this flight. 2
Your response will be used to provide the news media and the public with
an explanation of what a "split image" is and how it relates to this
flight..
I will need this information for media response by February 18, 1987.
Thank you.
AN
Paul Steucke