IRImplementing rule
ETSO-2C519a
EMERGENCY BREATHING SYSTEMS (EBSs)
1 Applicability
This ETSO provides the requirements which emergency breathing systems (EBSs) for operations to or from helidecks that are located in hostile sea areas (as defined in Annex I (‘Definitions for terms used in Annexes II to V’) to Commission Regulation (EU) No 965/2012) that are designed and manufactured on or after the date of this ETSO must meet in order to be identified with the applicable ETSO marking.
2 Procedures
2.1 General
The applicable procedures are detailed in CS-ETSO, Subpart A.
2.2 Specific
None.
3 Technical Conditions
3.1 Basic
3.1.1 Minimum Performance Standard
The applicable standards are those provided in AeroSpace and Defence Industries Association of Europe — Standardization (ASD-STAN) document prEN4856, edition P2, dated June 2022.
3.1.2 Environmental Standard
See CS-ETSO, Subpart A, paragraph 2.1.
3.1.3 Software
None.
3.1.4 Airborne Electronic Hardware
None.
3.2 Specific
3.2.1 Failure Condition Classification
None.
4 Marking
4.1 General
See CS-ETSO, Subpart A, paragraph 1.2.
4.2 Specific
The specific marking requirements are detailed in ASD-STAN document prEN4856, edition P2, dated June 2022.
5 Availability of Referenced Documents
See CS-ETSO, Subpart A, paragraph 3.
[Amdt ETSO/16]
[Amdt ETSO/18]
IR · ETSO-2C519a — CS-ETSO · CS-ETSO Easy Access Rules · EAR revision 1 Oct 2026