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Declassified 341st SMW unit histories

USAF via The Black Vault · 88 pages · text by OCR

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.

  • p. 7 …Guidance & Control channel 50 dump data was collected from E-7 facility and E-8 Facility…
  • p. 10 …Targeting support was schedualed for a G&C Channel 50 data dump at LF's E…
  • p. 11 …72 The crew also stated; the LF, E-8 had a channel 26 which indicated it…
  • p. 12 …74 Channel 50 data was extracted from sites E-7 and E-8 immediately after the…
  • p. 13 been recorded in channel 50 data. (U) The only non-detectable fault from the G&C…
  • p. 34 …the system to shut down with a Channel 9 & 12 No-Go. (U) Subsequent testing at…
  • p. 37 …Also, known was that the C-53P Logic Coupler will cause Channel 9 & 12 No-GO…
  • p. 38 …EHP or electrostatic nature. $ ^{62} $ (0) A Channel 9 & 12 No-Go shut down has never…
  • p. 42 …RUNWBA9143 SECRET SHUT DOWN WITH CHANNEL 9 & 12. SUBSEQUENT TESTING AT AUTONETICS AS PERFECTED IN THE…
  • p. 44 …Instructions for retest of VRSA Channels 26 and 27 and for personnel and weapon system safety…
  • p. 48 …This caused the system to shut down with a Channel 9 & 12 No-Go. 135 (U…
  • p. 53 …to Voice 152 Reporting Signal Assemble (VRSA) Channels 26 and 27. (U) Boeing ECP 1141 dash…
  • p. 61 …When a site has operational Hardened Voice Channel (HVC) circuits connected for use, a second sub…
  • p. 65 …721 Channels 26 and 27. 6 A. Background: 1. In response to 0°04 direction Contractor…
  • p. 66 …VRSA channels 26 and 27 are used to monitor equipment in the support building and overvoltage…
  • p. 68 …YES NO 5 TIME OF CHANGE Provide Protection for Monitor Lines for VRGA Channels 26 and…
  • p. 69 …Provide Protection for Monitor Lines for VRSA Channels 26 and 27 6 DELIVERY IN CHANGE A…
  • p. 70 …Instructions for retest of VRSA Channels 26 and 27 and for personnel and weapon system safety…
  • p. 71 …will improve service life of the VRSA channels 26 and 27 by protecting them from damage…
  • p. 72 …1967 YES X NO SUBJECT $\textcircled{3}$ DC Supply for Isolation Relays - VRSA Channels 26 and…
  • p. 84 …Headquarters, 15th AF ordered a test to determine if the channel 20 was being caused by…
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Document, cited by the archive. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 88 pages are in the text index: search them above, or from the library's search.