They will do the final passes. (Since this pipe has a .462 thousandths of an inch wall thickness, three fill passes are required. If it has been .562 pipe four fill passes would have been made.), 1976-07, PCA0002-2b-27, Folder: PCA0002-2b. Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977, PCA 2. Alaska State Library - Historical Collections Finding Aids. https://alaska.libraryhost.com/repositories/2/archival_objects/17526 Accessed February 22, 2025.