The Act applies to work on a covered interstate instrumentality or production facility even though performed during periods of temporary non-use or idleness.
Walton v. Southern Package Corp., 320 U.S. 540; Slover v. Wathen & Co., 140 F. (2d) 258 (C.A. 4); Bodden v. McCormick Shipping Corp., 188 F. (2d) 733; and Russell Co. v. McComb, 187 F. (2d) 524 (C.A. 5).