An audit of 1975 mainline field girth weld radio-graphs conducted during the spring, revealed 3,955 discrepancies. As of early July, more than 2,200 of these discrepancies had been resolved., 1976-07, PCA0002-2a-22, Folder: PCA0002-2a. 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/17441 Accessed February 22, 2025.