Reporting metadata specification


The reporting metadata specification is the list of mandatory fields which have to be provided to ICAO in the context of accident data reporting (ADREP). Metadata is data about accident data, allowing classification and categorisation for safety analysis purposes.

Metadata specification

The table below lists the data ICAO requires Member States to include as a minimum into the data report as per Chapter 7 of ICAO Annex 13. Highlighted fields are used to uniquely identify the report in the ICAO database. Notifications which do not contain this information will be rejected.

A subset of this data may already be available right after that the event occurred and should therefor be communicated in the initial notification sent to ICAO as per Chapter 4 of ICAO Annex 13.

Metadata specification for accident data reporting to ICAO
SectionNameData typeSource
Filing InformationState ReportingValue listISO 3166-1 list of country codes
Reporting orgainizationText 
State file numberText 
WhenLocal DateDate 
Local TimeTime 
WhereState of occurrenceValue listISO 3166-1 list of country codes
Location of occurrenceText 
FIRValue listFIR Codes
Latitude of occLatitude 
Longitude of occLongitude 
ClassificationOccurrence classValue listOccurrence Class Taxonomy
Occurrence categoryValue listOccurrence Category Taxonomy
SeverityDamage aircraftValue listDamage Aircraft Taxonomy
Injury levelValue listInjury Level Taxonomy
Aircraft identificationAircraft registrationText 
Serial numberText 
State of registryValue listISO 3166-1 list of country codes
Operation typeOperation typeValue listOperation Type Taxonomy
Mass groupMass groupValue list

MG1: 0-2250 kg

MG2: 2251 - 5700 kg

MG3: 5701 - 27000 kg

MG4: 27001 - 272000 kg

MG5: >272000 kg

UNK: Unkown

History of flight:ItinaryLast departure pointValue list4L Airport Codes
Planned destinationValue list4L Airport Codes
Flight phaseValue listFlight Phase Taxonomy
EventsEvent typeValue listEvent type taxonomy

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