Easy Access Rules for Aircraft Engine Emissions and Fuel Venting (CS-34)

Easy Access Rules for Aircraft Engine Emissions and Disclaimer Fuel Venting (CS - 34) (Amendment 2)

D ISCLAIMER

This version is issued by the European Aviation Safety Agency (EASA) in order to provide its stakeholders with an updated and easy-to-read publication. It has been prepared by putting together the certification specifications with the related acceptable means of compliance and guidance material. However, this is not an official publication and EASA accepts no liability for damage of any kind resulting from the risks inherent in the use of this document.

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Easy Access Rules for Aircraft Engine Emissions and Note from the editor Fuel Venting (CS - 34) (Amendment 2)

N OTE FROM THE EDITOR

The content of this document is arranged as follows: the certification specifications (CS) are followed by the related acceptable means of compliance (AMC) and guidance material (GM) paragraph(s).

All elements (i.e. CS, AMC and GM) are colour-coded and can be identified according to the illustration below. The EASA Executive Director (ED) decision through which the point or paragraph was introduced or last amended is indicated below the paragraph title(s) in italics .

Certification specification

ED decision

Acceptable means of compliance

ED decision

Guidance material

ED decision The format of this document has been adjusted to make it user-friendly and for reference purposes.

Any comments should be sent to erules@easa.europa.eu .

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Easy Access Rules for Aircraft Engine Emissions and Incorporated amendments Fuel Venting (CS - 34) (Amendment 2)

I NCORPORATED AMENDMENTS

CS/AMC/GM (ED DECISIONS )

CS/AMC/GM Issue No, Incorporated ED Decision Applicability date Amendment No ED Decision 2003/3/RM CS - 34/ Initial i ssue 17/10/2003 ED Decision 2013/002/R CS - 34/ Amendment 1 29/1/2013 ED Decision 2016/001/R CS - 34/ Amendment 2 26/1/2016 Note: To access the official versions, please click on the hyperlinks provided above.

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Easy Access Rules for Aircraft Engine Emissions and Table of contents Fuel Venting (CS - 34) (Amendment 2)

T ABLE OF CONTENTS

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Easy Access Rules for Aircraft Engine Emissions and Preamble Fuel Venting (CS - 34) (Amendment 2)

P REAMBLE

ED Decision 2016/001/R CS-34 Amendment 2 The following is a list of paragraphs affected by this amendment: CS 34.1 Amended CS 34.2 Amended AMC 34.2(a) to (f) Amended GM 34.2(a) and (b) Amended GM 34.2(f) to (i) Amended GM 34.2(j) to (p) Added GM 34.2 final section Amended ED Decision 2013/002/R CS-34 Amendment 1 The following is a list of paragraphs affected by this amendment: Preamble Preamble page added GM 34.2 (c) to (i) Added GM 34.2 final section Added Powered by EASA eRules Page 7 of 9 | Jun 2018

Easy Access Rules for Aircraft Engine Emissions and CS & AMC/GM for Aircraft Engine Fuel Venting (CS - 34) (Amendment 2) Emissions and Fuel Venting

CS & AMC/GM FOR A IRCRAFT E NGINE E MISSIONS AND F UEL

V ENTING

CS 34.1 Fuel venting

ED Decision 2016/001/R The aircraft must be designed to comply with the applicable fuel venting requirements defined under 21.A.18(b)(1).

[Amdt 34/2]

CS 34.2 Aircraft engine emissions

ED Decision 2016/001/R (See AMC 34.2 and GM 34.2 ) The aircraft engine must be designed to comply with the applicable emission requirements defined under 21.A.18(b)(2) and (3).

[Amdt 34/2]

AMC 34.2 Aircraft engine emissions

ED Decision 2016/001/R The acceptable means of compliance for aircraft engine emissions are presented in: (a) for measurement of reference pressure ratio, Appendix 1 to ICAO Annex 16, Volume II; (b) for smoke emission evaluation, Appendix 2 to ICAO Annex 16, Volume II; (c) for instrumentation and measurement techniques for gaseous emissions, Appendix 3, except for its attachments, to ICAO Annex 16, Volume II; (d) for specification for fuel to be used in aircraft turbine engine emission testing, Appendix 4 to ICAO Annex 16, Volume II; (e) for instrumentation and measurement techniques for gaseous emissions from afterburning gas turbine engines, Appendix 5, except for its attachments, to ICAO Annex 16, Volume II; and (f) for compliance procedure for gaseous emissions and smoke, Appendix 6 to ICAO Annex 16, Volume II.

[Amdt 34/2]

GM 34.2 Aircraft engine emissions

ED Decision 2016/001/R Guidance material for the application of the certification specifications for aircraft engine emissions is presented in: (a) for instrumentation and measurement techniques for gaseous emissions, the attachments to Appendix 3 to ICAO Annex 16, Volume II; (b) for instrumentation and measurement techniques for gaseous emissions from afterburning gas turbine engines, the attachments to Appendix 5 to ICAO Annex 16, Volume II; Powered by EASA eRules Page 8 of 9 | Jun 2018 Easy Access Rules for Aircraft Engine Emissions and CS & AMC/GM for Aircraft Engine Fuel Venting (CS - 34) (Amendment 2) Emissions and Fuel Venting (c) for definitions and symbols, Part I of the ICAO Environmental Technical Manual, Volume II; (d) for emissions certification of turbojet and turbofan engines intended for propulsion only at subsonic speeds, Part III, Chapter 2 of the ICAO Environmental Technical Manual, Volume II; except for the exemption process from the NOx emissions production cut - off requirements; (e) for turbojet and turbofan engines intended for propulsion at supersonic speeds, Part III, Chapter 3 of the ICAO Environ mental Technical Manual, Volume II; (f) for smoke emission evaluation, Appendix 2 to the ICAO Environmental Technical Manual, Volume II; (g) for instrumentation and measurement techniques for gaseous emissions, Appendix 3 to the ICAO Environmental Technica l Manual, Volume II; (h) for specification for HC analyser, Attachment A to Appendix 3 to the ICAO Environmental Technical Manual, Volume II; (i) for specification for fuel to be used in aircraft turbine engine emission testing, Appendix 4 to the ICAO Env ironmen tal Technical Manual, Volume II; (j) for measurement of reference pressure ratio, Appendix 1 to the ICAO Environmental Technical Manual, Volume II; (k) for specification for CO and CO2 analysers, Attachment B to Appendix 3 to the ICAO Environmental Technical Manual, Volume II; (l) for specification for NOx analyser, Attachment C to Appendix 3 to the ICAO Environmental Technical Manual, Volume II; (m) for calibration and test gases, Attachment D to Appendix 3 to the ICAO Environmental Technical Manual, Volume II; (n) for calculation of the emissions’ parameters, Attachment E to Appendix 3 to the ICAO Environmental Technical Manual, Volume II; (o) for specification for additional data, Attachment F to Appendix 3 to the ICAO Environmental Technical Manual, Volume II; and (p) for compliance procedure for gaseous emissions and smoke, Appendix 6 to the ICAO Environmental Technical Manual, Volume II.

References throughout these certification specifications to the ICAO Environmental Technical Manual, Volume II, refer to ICAO Doc 9501 — Environmental Technical Manual, Volume II — Procedures for the Emissions Certification of Aircraft Engines, Second Editio n 2 014 .

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