General maintenance handbook for airway facilities. - [Washington, D.C., 1981]. - v. 10/5/81. CRDP Program Historic Shelflist record. Subjects--Topical Terms: Aeronautics--Safety regulations--United States--Handbooks, manuals, etc. GPO Item No.: 0431-C-04 Gov. Doc. Class. No.: TD 4.8/2:6000.15 A/CH.3