Definition
An occurrence associated with the operation of an aircraft, taking place between the time any person boards the aircraft with the intention of flight and the time all such persons have disembarked, in which any person suffers death or serious injury, or the aircraft receives substantial damage.
Plain English
An event involving an aircraft in which someone is seriously hurt or killed, or the aircraft itself is significantly damaged, occurring between the moment people board to fly and the moment everyone has gotten off.
Context Anchor
You will see this term in safety discussions, accident reports, instructor guidance, and conversations about risk management and decision-making.
Derivation
Accident comes from Latin words meaning “to happen” or “to fall upon.” That helps because an aircraft accident is an event that occurs during aircraft operation and has serious consequences, not just a small inconvenience or routine maintenance problem.
Why Pilots Care
Determines legal reporting requirements, insurance outcomes, and whether lessons from the event must be formally addressed.
Intuition Check
Do not assume aircraft accident means any mistake, rough landing, or mechanical problem. In aviation use, it means a serious event tied to aircraft operation that causes death, serious injury, or major aircraft damage.
Example Sentence 1
After the runway excursion caused substantial damage to the wing spar, the event was classified as an aircraft accident and reported to the NTSB.
Example Sentence 2
Denial that an aircraft accident could happen often appears in early training when students skip thorough preflight checks.