NTATIONS AND WARRANTIES 2.1 Ownership; Priority Lien; No Violation 5 2.2 Insurer's Certificate 6 ARTICLE III — COVENANTS OF MORTGAGOR 6 3.1 Registration, Maintenance and Operation of Aircraft and Engines 6 3.2 Alterations, Modifications and Additions 3.3 Event of Loss 9 3.4 Insurance 10 3.5 Location of Aircraft 3.6 Application of Insuranc