Report to the President by Emergency Board 166, appointed by Executive order 11276 dated Apr. 21, 1966, pursuant to sec. 10 of Railway labor act, as amended, to investigate and report its findings to the President of unadjusted disputes between Eastern Air Lines, Inc., National Airlines, Inc., Northwest Airlines, Inc., Trans World Airlines, Inc., and United Air Lines, Inc., and certain of their employees represented by International Association of Machinists, AFL-CIO, labor organization (NMB case A-7655).