 Air Mail was flown exclusively by the U.S. Army (as the "Army Air Corps Mail Operation") from February 19 to May 8, 1934, when new temporary contracts with private carriers were put into effect.During this period there were a total of 66 accidents resulting in the deaths of 12 Army pilots including two who were killed on the last AACMO flight on June 6, 1934.Air Mail as a distinct service was effectively ended within the United States on October 10, 1975, however, when all domestic intercity First Class mails began to be transported by air whenever practical and/or expeditious at the normal First Class rate.