A quick check on Wikipedia's Malmstrom AFB article shows that a few lines have been added listing Oscar Flight as was the intent of Wiki to merge it with Malmstrom:
"On March 24, 1967, ten of the base's Minuteman ICBMs known as Oscar Flight became inoperative, allegedly after UFOs were seen hovering over them. Personnel who have reported witnessing the UFOs include Captain (then First Lieutenant) Robert Salas,Colonel Frederick Meiwald, First Lieutenant Robert C. Jamison, and Staff Sergeant Louis D. Kenneweg"
The only problem with this entry is that it gives the impression that Oscar did have all ten of it's missiles drop off alert, but that the cause was allegedly UFO's over the flight area. At least that's how I read it.
Again, there is no references given that state that this did in fact occur ( ten missiles off alert). It should had been written that "allegedly Oscar Flight became inoperative..." and that there are no eye witnesses or official Air Force investigation to corroborate the event.
Oh well...such is Wikipedia allowing a folktale to go unchallenged and giving a fabrication the air of legitimacy. To Wiki's editors, I have to ask you...truly now, did it really happen?