Final Answer:
NTSB Part 830 mandates immediate notification to the nearest NTSB field office by the operator of an aircraft when an aircraft accident occurs. Incidents requiring notification include specific events outlined in the regulation.
Step-by-step explanation:
According to NTSB Part 830, immediate notification to the NTSB is required for aircraft accidents. Incidents necessitating notification include substantial damage to the aircraft, the disappearance of an aircraft where wreckage hasn't been located, or an injury resulting in death within 30 days of the accident. Additionally, notification is required for events like the release of hazardous materials, flight control system malfunctions, and certain in-flight engine failures. Compliance with these notification requirements is crucial for initiating investigations, gathering crucial information, and enhancing aviation safety.