Which of the following is a mandatory reporting requirement for an aircraft accident?

The requirement to report property damage over $25,000 stems from the regulations established by the Federal Aviation Administration (FAA). In the context of an aircraft accident, the definition of an accident includes any occurrence involving an aircraft that results in substantial damage, which is defined as damage that affects the structural integrity, performance, or flight characteristics of the aircraft.

When property damage exceeds the threshold of $25,000, it signifies a significant incident that could have implications for safety, regulatory compliance, and further investigations. This reporting helps ensure that the appropriate responses are initiated and that safety measures can be examined and improved.

In contrast, minor damage to the aircraft may not reach this threshold and thus does not necessitate a mandatory report. Normal flight operations and in-flight turbulence are routine events that do not involve accidents or significant damage, and therefore do not carry any reporting requirement.