Unlock Advanced Research with PRISMAI Integrated with over 4 crore judgments and laws — designed for legal practitioners, researchers, students and institutions - Know your Kanoon - Doc Gen Hub - Counter Argument - Case Predict AI - Talk with IK Doc - ... Upgrade to Premium Document Options Get in PDF Print it! [Cites 0, Cited by 0] [Section 140B] [Entire Act] Union of India - Subsection Section 140B(1) in The Aircraft Rules, 1937 (1)An Operations Manual in the form approved by the Director-General, shall be maintained by [every operator engaged in air transport services.] [Substituted by G.S.R. 413, dated 4.8.2001. ]