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The Pilots Desk
ICAOICAO Annex 13

ICAO Annex 13 — Aircraft Accident and Incident Investigation

Read the official rule

Annex 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.