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Category: ESARRs ESARRs

ESARR 2 - Reporting and Assessment of Safety Occurrences in ATM


ESARR 2 mandates the implementation of a harmonised occurrence reporting and assessment scheme by EUROCONTROL member states. ECAC member states who are not members of EUROCONTROL are also encouraged to apply it.

The requirement promotes a consistent and systematic reporting and assessment process, encourages the establishment of a non-punitive environment and is designed to act as an effective contribution to accident and serious risk bearing incident prevention.

ESARR 2 defines:

  • Requirements on the main phases of the occurrence reporting and assessment process: occurrence reporting; data collection, data analysis, risk classification, recommendation formulation; recommendation implementation and monitoring; safety data and experience exchange.
  • The ATM-related occurrences which shall, as a minimum, be reported and assessed by States.
  • The minimum appropriate safety data which shall be collated and reported to EUROCONTROL by States, expressed in terms of high level safety indicators.
  • Harmonised terms and definitions.

Severity Classification Schemes

Severity classification schemes for ATM related occurrences are developed in a companion document to ESARR 2 (see below) to enable its implementation by national regulatory and service provider organisation. The schemes allow:

  • Classification of occurrences according to the severity of their effect on the safe operations of aircraft and occupants; and
  • Classification of occurrences according to the severity of their effect on the ability to provide safe ATM services.


Implementation of ESARR 2 by service providers and States will enable:

  • Assessment of safety performance against performance targets and related trends over time.
  • Identification of key risk area to act upon.
  • Identification of ATM system contribution to all types of safety occurrences.
  • Identification of risk reduction strategies, approaches and measures.

Transposition into Community Law

The majority of ESARR 2 requirments has been transposed into European Community law by the following Directives:

For more detailed informaion go to article: Transposition of ESARRs into Community Law

Further Reading