General45KISO 4500119KISO 190119K1ISO 9001AviationA13Annex 13A19Annex 19IOIOSA
Aviation A13
ICAO Annex 13

Aircraft Accident and Incident Investigation

ICAO Annex 13 defines how aviation accidents, serious incidents, and incidents must be classified, notified, and investigated. SIRAM implements the full taxonomy, notification timelines, and investigation workflow — out of the box.

See how SIRAM maps to Annex 13 → Explore the platform
What is Annex 13?
ICAO Annex 13 (Standards and Recommended Practices — Aircraft Accident and Incident Investigation) is adopted by all 193 ICAO member states. It defines: occurrence classification, State obligations for investigation, investigator authority, notification requirements (72-hour rule), investigation methodology, safety recommendations, and final report requirements.
Applies to
All aviation operators: airlines, charter operators, MROs, flight schools, and ground handling. Applies to State investigation authorities and operators providing information to investigations. Mandatory for all ICAO signatory states.
Airlines & AOC holdersCharter operatorsMROsFlight schoolsGround handling
Standard overview

What Annex 13 requires

Key civilization and clauses — and what they mean for your organisation.

Chapter 1
Definitions
Accident, serious incident, incident — precise classification definitions with severity criteria. Defines 'State of Occurrence', 'State of Registry', 'State of Operator', 'State of Design'.
Chapter 3
Applicability and objectives
Sole objective of investigation is prevention — not blame. Mandatory investigation trigger thresholds by occurrence category.
Chapter 4
Notification
State of Occurrence notifies State of Registry, State of Operator, State of Design, and ICAO. 72-hour notification deadline for accidents and serious incidents.
Chapter 5
Investigation
Investigator authority, access to wreckage, flight recorders, evidence. State of Operator rights and responsibilities.
Chapter 6
Evidence recording
Cockpit voice recorder (CVR), flight data recorder (FDR), air traffic services records, weather data, crew information.
Chapter 7
Final report
Report format, safety recommendations, dissemination obligations, State response to recommendations.
Compliance mapping

How SIRAM maps to Annex 13

Every civilizatio clause mapped to the platform module that delivers it — with governance validation built in.

Occurrence classification (Ch.1 definitions)
Incident Reporting module
ICAO Annex 13 taxonomy pre-configured: accident / serious incident / incident / occurrence. Classification on submission — no manual review required.
72-hour notification (Ch.4)
Notifications module
Automatic countdown timer on occurrence submission. CASA / CAAV notification template pre-populated. Escalation if deadline approaches.
Investigation authority (Ch.5)
Governance Engine — Check 1 (Entitlement)
Investigator authority validated before investigation workspace opens. ICAO Annex 13 investigator qualification categories enforced.
Evidence recording (Ch.6)
Investigation module
FDR / CVR data reference logging, flight crew information capture, evidence chain with hash verification.
Safety recommendations (Ch.7)
Investigation module + Risk Management
Safety recommendation tracking from ATSB / NTSB / ICAO reports. Linkage to corrective actions and risk register updates.
Immutable investigation record
Neo4j audit trail
Append-only graph storage. Every finding, evidence item, and recommendation linked with cryptographic timestamp — provably unmodified.
Why SIRAM

The SIRAM difference on Annex 13

Not just aligned — implemented.
Most incident systems capture what happened. ICAO Annex 13 requires structured investigation of why it happened, who had authority to investigate, and what safety recommendations were generated. SIRAM implements all three — occurrence classification on submission, governance-validated investigator authority, HFACS root cause methodology, and safety recommendation tracking. The 72-hour notification is not a calendar reminder; it is an automated countdown with template auto-population and escalation if the deadline approaches.

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Annex 13 compliance?

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