ICAOICAO Annex 13
ICAO Annex 13 — Aircraft Accident and Incident Investigation
Read the official ruleAnnex 13 sets the framework for accident and incident investigation — the rights and responsibilities of the state of occurrence, registry, operator and manufacturer; the conduct of independent, no-blame investigations aimed solely at prevention; and the protection of safety information. The NTSB, AAIB, BEA and others operate under it. *Summary only — consult ICAO and your investigation authority.*
This is an original plain-English explanation for training and reference, not legal advice and not for navigation. Always rely on the current official rule linked above. Last reviewed June 2, 2026.