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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
programs analysis has been finalized and correlated with SAMSO's EMP tests results in a joint conference. On 27 - 28 July 1967, OOAMA conducted an engineering inspection at Malmstrom AFB of the interconnecting box, ESA panel, and missile away drawers at LCFs, Alpha 01 and Echo 01. The inspection found approximately 200 were checked. There were no set pattern of loose connections noted on SIN lines or Command lines. The interconnecting box was inspected for loose connections, arcing, burned areas, and tampering, with none discovered. Missiles away drawers involved in the incident were checked and found operation as designed. Thus no major problems were uncovered. 144 MISSILE INCIDENTS-Echo Flight Testing (EMP) The direct relationship of EMP testing and Echo Flight Incident are intermixed, these EMP tests will be included in this section. (U) SAMSO has been conducting EMP tests at Warren AFB, Wyo., but the results are unknown to this office. The tests made on Delta Flight were completed on all test objectives. SAMSO, with the completion of these tests, began EMP testing at the 564th
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