NDT Basic Theory.pdffTECHNICAL MANUAL NONDESTRUCTIVE INSPECTION METHODS, BASIC THEORY (ATOS) THIS MANUAL SUPERSEDES T.O. 33B-1-1, DATED 1 JANUARY 2005, AND ALL SUBSEQUENT CHANGES. THIS MANUAL HAS BEEN EXTENSIVELY REWRITTEN; THEREFORE, REVISION BARS HAVE BEEN OMITTED. ARMY Wherever the text of this manual refers to Air Force technical orders for supportive information, PERSONNEL: refer to the comparable Army documents. NAVY OPNAV instruction 4790.2 and weapon system specific manuals take precedence over this manual. PERSONNEL: DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. PA Case Number SPR50014. Submit recommended changes or problems with this Technical Order to 558 CBSS/GBHA.