I'm assembling a presentation for junior staff on creating field observation reports. We often use the terms non-conforming, deficiencies, corrective action, etc., when describing work observed.
One of my coworkers shared with me the following excerpt from The Engineer's Manual of English, by W.O. Syperd, Alvin M. Fountain, and Sharon Brown, revised edition published 1943, by Scott, Foresman and Company.