Substantial Damage [National Transportation Safety Board] Law and Legal Definition

According to 49 CFR 830.2 [Title 49 – Transportation; Subtitle B Other Regulations Relating to Transportation; Chapter VIII National Transportation Safety Board; Part 830 Notification and Reporting of Aircraft Accidents or Incidents and Overdue Aircraft, and Preservation of Aircraft Wreckage, Mail, Cargo, and Records; Subpart A – General], substantial damage means “damage or failure which adversely affects the structural strength, performance, or flight characteristics of the aircraft, and which would normally require major repair or replacement of the affected component. Engine failure or damage limited to an engine if only one engine fails or is damaged, bent fairings or cowling, dented skin, small punctured holes in the skin or fabric, ground damage to rotor or propeller blades, and damage to landing gear, wheels, tires, flaps, engine accessories, brakes, or wingtips are not considered "substantial damage" for the purpose of this part.”