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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
FDCP 528 PAGE 6 OF ___ 1. MCL NO. 2827 MINUTEMAN WEAPON SYSTEM FACILITIES WORKING GROUP ACTION SHEET 2. DAY MONTH YEAR DATE: 29 November 1965 3. THE PROPOSED FACILITY CHANGE AS DESIGNATED BY THE MCL NUMBER IN BLOCK I. ABOVE WAS REVIEWED AT FWG MEETING NO. 90. ACTION TAKEN ON THIS CHANGE WAS: ☐ 1. APPROVED AS WRITTEN ☐ 2. APPROVED WITH FOLLOWING CHANGES OR COMMENTS ☐ 3. RETURNED TO ORIGINATOR: ☐ AS NOT JUSTIFIED: ☐ FOR ADDITIONAL JUSTIFICATION FOR FOLLOWING REASON: The FWG classified this FCIR for design action. A Routine priority FECP 528 will be submitted to the CCB for final determination. Work with DCP 1141 and if approved accomplish concurrently. ☐ SKETCHES ATTACHED TO CHANGE ARE ADEQUATE ☐ SKETCHES WILL BE PROVIDED BY THE A/E ON TBD 4. CLASSIFICATION OF CHANGE: ☐ CLASS I ☐ CLASS II 6. PRIORITY FOR CHANGE: ☐ EMERGENCY ☐ URGENT ☐ ROUTINE 8. FACILITY AREA AFFECTED: ☐ LF ☐ LCF ☐ SMSB ☐ OTHER 5. INTERFACE AFFECTED: ☐ YES ☐ NO ECP ACTION REQUIRED: ☐ YES ☐ NO 7. ESTIMATED COST FOR CHANGE: Labor 4 MH at $11 = $44 Mat'1 = 1/$45/Fac EFFECTIVITY FOR CHANGE BASE TO BE ACCOMPLISHED BY CONSTRUCTION CONTRACTOR BASE TO BE ACCOMPLISHED BY ASSEMBLY AND CHECKOUT CONTRACTOR YAFB YAFB LF's 02-09 WING I MAFB WING I MAFB All Flights WING II EAFB WING II EAFB All Flights WING III MTAFB WING III MTAFB All Flights WING IV WAFB WING IV WAFB All Flights WING XV FEWAFB WING XV FEWAFB All Flights WING XV GFAFB WING XV GFAFB SQDN 20 HAFB SQDN 20 HAFB ETF HAFB ETF HAFB LFSB
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