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This Black Vault release contains the Air Force's 2001 response from the 341st Space Wing FOIA office at Malmstrom AFB, Montana, to a request about the 16 March 1967 Echo Flight missile shutdown, with excerpts from 341st Strategic Missile Wing histories covering 1967 to early 1968. The histories say all ten Echo Flight launch facilities lost strategic alert almost simultaneously. Investigators could not find a logical cause and found rumors of UFOs near Echo Flight to be unfounded.
“Seattle”11 pages
FIRM NAME AND ADDRESS THE BOEING COMPANY P.O. BROADWAY SEATTLE 24, WASHINGTON ENGINEERING CHANGE PROPOSAL 1 MODEL OF THE MODEL Figure A 1248 VES. NO. 81205 SYSTEM DESIGNATION WS-133A DCP NO. 1141-1 TITLE REV. R CORREC. 2 COMPATIBILITY RECOMMENDED 3 CONTRACT INFORMATION Cable Assembly Set, Launcher CONTRACT SPECIFICATION 4 PART OF PARTNERSHIP TO BE AFFECTED Cable Assembly Set, Launcher PART NO. OF FILM AFFECTED No Change IN PROC. YES NO 5 TIME OF CHANGE Provide Protection for Monitor Lines for VRGA Channels 26 and 27 6 DESCRIPTION OF CHANGE A. This change will require the revision of the following schematic drawings to change the nomenclature on cabling affected: 21-52047 21-53057 21-54327 21-52987 21-55927 21-53407 21-54520 B. Figure A 1248 hardware will not be affected. C. Interchangeability: The functional interchangeability of the Figure A 1248 cables will not be affected by this change. D. Items in lines 10, 17, 18, 19 and 20 which are not checked (x) are not affected. 7 STATEMENT FOR CHANGE See JCP 11412 X APPLICATION ANGUAGE FOR JCP 11412 INITIAL BY CONTRACT NO. 1 CONVENIABLE WORKER OR SUPERVISOR 2 THE TOP FINANCIALIST REPORTING. 3 OTHER 8 DEVELOPMENT REQUIREMENT None, the development of Figure A 1248 has been completed. 9 ALTERNATIVE SOLUTIONS None 10 PRODUCTION EFFECTIVITY 11 ESTIMATED COST FOR CHANGE MOTES See JCP 11412 page 12 RECOMMENDATIONS FOR ADDITION N/A 13 RATIFACTIVE EFFECTIVITY N/A
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