Emergencies ACCIDENTS AND INCIDENTS DEFINITIONS
The NTSB Part 830.2 defines “aircraft accident” and “aircraft incident.” As a professional crewmember you should have a basic understanding of these definitions and reporting responsibilities.
Aircraft Incident
An incident is an occurrence other than an accident, associated with the operation of an aircraft, which affects or could affect the safety of operations. • Flight control system malfunction or failure • Crewmember incapacitation • Failure of structural component of a turbine engine • Inflight fire • Aircraft collision inflight • Aircraft overdue and believed to be in an accident
Aircraft Accident
An accident is an occurrence associated with the operation of an aircraft which takes place between the time any person boards the aircraft with the intention of flight and all such persons have disembarked, and which any person suffers death or serious injury, or in which the aircraft receives substantial damage.
• Fatal injury means any injury which results in death at the time of or within 30 days of the accident
• Serious injury means hospitalization for 48 hours within seven days from date of injury
• Substantial damage means that damage which adversely affects the structural strength, performance, or flight characteristics of the aircraft
Reporting
The operator of an aircraft is required to notify the NTSB within 10 days of an aircraft accident or of any of the above incidents.
For large multi-engine aircraft (over 12,500 pounds max takeoff weight), the NTSB must also be notified in the event of:
• Inflight failure of electrical systems requiring sustained use of emergency bus powered by a backup source
• Inflight failure of hydraulic systems that results in sustained reliance on sole remaining hydraulic or mechanical system for movement of flight control surfaces
• Sustained loss of the power or thrust produced by two or more engines • An evacuation of an aircraft in which an emergency egress system is utilized
Human factors are the principal or major contributing causes of approximately :
80% of ALL aircraft accidents and an estimated 90% of all FATAL aircraft accidents. 78% of ALL accidents occur during Landing, Take-off & Taxi. Aviation Basics 36
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