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EASA Easy Access Rules change brief

AMC-20 Amdt 23 - Airworthiness of Products, Parts and Appliances: May 2021 to Jan 2022

Use this brief to identify changed items and open the exact source wording. Deterministic AviationBot change signals support review triage; review order is not a legal-impact assessment.

Comparison completed

Modified
20
20 modified
Added
9
9 added
Removed
4
4 removed
Unchanged
58
58 unchanged

Regulatory sources represented

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Impacted items

33 results

Modified

Appendix 3 to AMC 20-20B Guidelines for establishing instructions for continued airworthiness of structural repairs and modifications

ERULES-1963177438-18066 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
29 May, 2021
Applicability Changed

Changed applicability term

Earlier evidence
Establish DT data implementation schedule Develop the neededDT data TCH tasks · Identify affected aeroplanes · Identify FCBS · Identify certification amendment level TCH and STCH tasks — Modifications · Review EASA approved modification dat
Numeric Value Changed

Changed numeric value

Earlier evidence
Establish DT data implementation schedule Develop the neededDT data TCH tasks · Identify affected aeroplanes · Identify FCBS · Identify certification amendment level TCH and STCH tasks — Modifications · Review EASA approved modification dat
Obligation Changed

Changed obligation term

Earlier evidence
Establish DT data implementation schedule Develop the neededDT data TCH tasks · Identify affected aeroplanes · Identify FCBS · Identify certification amendment level TCH and STCH tasks — Modifications · Review EASA approved modification dat
Reference Changed

Changed regulatory reference

Earlier evidence
Establish DT data implementation schedule Develop the neededDT data TCH tasks · Identify affected aeroplanes · Identify FCBS · Identify certification amendment level TCH and STCH tasks — Modifications · Review EASA approved modification dat

Modified

Appendix A to AMC 20-21 Enhanced Zonal Analysis Logic Diagram and Steps

ERULES-1963177438-7807 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
5 September, 2008
Applicability Changed

Changed applicability term

Earlier evidence
2 . Maintenance Programme Zonal Section Aircraft with ZIP Maintenance ProgrammeSystems and Powerplant Section Recommend inclusion in ATA 20 Define task and interval Is there an effective task to significantly reduce the likelihood of accumu
Numeric Value Changed

Changed numeric value

Earlier evidence
Continue the analysis No further action GVI consolidated in zonal inspection 9 . 8 . 7 . 6 . 5 . 4 . 3 . 2 . 1 . Consider consolidation with existing inspection tasks in Systems & Powerplant and / or Zonal Programmes GVI stand-alone GVI DET
Obligation Changed

Changed obligation term

Earlier evidence
List zone description and boundaries for GVI of all wiring in the zone List zone description and boundaries for zonal GVI Zonal GVI must be augmented with stand-alone GVI and / or DET inspection Some wiring requires GVI at more frequent int

Modified

AMC 20-3B Certification of Engines Equipped with Electronic Engine Control Systems

ERULES-1963177438-8992 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
1 January, 2021, 24 July, 2020
Numeric Value Changed

Changed numeric value

Earlier evidence
DEFINITIONS VISUALISED SYSTEMS Primary system May be one or more lanes ( channels ) Lanes typically have equal functionality ENGINE CONTROL SYSTEM Backup system May be hydromechanical control or less capable lane ALTERNATE MODE 1 ALTERNATE
Obligation Changed

Changed obligation term

Earlier evidence
DEFINITIONS VISUALISED SYSTEMS Primary system May be one or more lanes ( channels ) Lanes typically have equal functionality ENGINE CONTROL SYSTEM Backup system May be hydromechanical control or less capable lane ALTERNATE MODE 1 ALTERNATE
Reference Changed

Changed regulatory reference

Earlier evidence
DEFINITIONS VISUALISED SYSTEMS Primary system May be one or more lanes ( channels ) Lanes typically have equal functionality ENGINE CONTROL SYSTEM Backup system May be hydromechanical control or less capable lane ALTERNATE MODE 1 ALTERNATE

Modified

Appendix 2 to AMC 20-20B Guidelines for the development of a programme to preclude the occurrence of widespread fatigue damage

ERULES-1963177438-99999 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
29 May, 2021
Numeric Value Changed

Changed numeric value

Earlier evidence
YES NO FOR EACH AREA , DETERMINE THE WFD AVERAGE BEHAVIOUR IN THE FLEET ( See 4 . 3 . 2 onwards ) ESTABLISH ISP , INSPECTIONINTERVAL AND METHOD AND SCHEDULE FOR TERMINATING ACTION ( See 4 . 3 . 9 / / 10 / 11 ) ESTIMATE ALLOWABLE FATIGUE DAM
Obligation Changed

Changed obligation term

Earlier evidence
CRACK LENGTH REQUIRED RESIDUAL STRENGTH WFD ( Average Behavior a crit ACTUAL RESIDUAL STRENGTH FLIGHT CYCLES NOTE : No scale implied . For definition use only . Probability Density Function for Cycles to MSD / MED CRACK INITIATION WFD ( ave
Reference Changed

Changed regulatory reference

Earlier evidence
CRACK LENGTH REQUIRED RESIDUAL STRENGTH WFD ( Average Behavior a crit ACTUAL RESIDUAL STRENGTH FLIGHT CYCLES NOTE : No scale implied . For definition use only . Probability Density Function for Cycles to MSD / MED CRACK INITIATION WFD ( ave

Modified

Incorporated amendments

ERULES-1963177438-18060 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Numeric Value Changed

Changed numeric value

Newer evidence
ED Decision 2022 / 001 / R | AMC-20 / Amendment 23 | 27 / 1 / 2022
Reference Changed

Changed regulatory reference

Newer evidence
ED Decision 2022 / 001 / R | AMC-20 / Amendment 23 | 27 / 1 / 2022
Table Structure Changed

Validated table shape changed

Modified

Annex 2 to Appendix 2 to AMC 20-20B Example of how to establish an LOV

ERULES-1963177438-18076 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
29 May, 2021
Numeric Value Changed

Changed numeric value

Earlier evidence
WFD ( average behaviour ) SMP ISP Flight cycles / hours Candidate LOV 1 Candidate LOV 2 Candidate LOV 3 Crack length Residual strength
Reference Changed

Changed regulatory reference

Earlier evidence
WFD ( average behaviour ) SMP ISP Flight cycles / hours Candidate LOV 1 Candidate LOV 2 Candidate LOV 3 Crack length Residual strength

Modified

ERULES-1963177438-18061

ERULES-1963177438-18061 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
18 December, 2020
Numeric Value Changed

Changed numeric value

Newer evidence
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Acceptable means of compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference Changed

Changed regulatory reference

Earlier evidence
16
Newer evidence
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Modified

Preamble

ERULES-1963177438-18062 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Numeric Value Changed

Changed numeric value

Newer evidence
2022 / 001 / R Amendment 23 The following is a list of paragraphs affected by this amendment : AMC 20-136A | Amended ( NPA 2020-09 ) AMC 20-158A | Amended ( NPA 2020-09 ) AMC 20-193 | Created ( NPA 2020-09 ) SUBPART B — LIST OF AMC-20 ITEMS
Reference Changed

Changed regulatory reference

Newer evidence
2022 / 001 / R Amendment 23 The following is a list of paragraphs affected by this amendment : AMC 20-136A | Amended ( NPA 2020-09 ) AMC 20-158A | Amended ( NPA 2020-09 ) AMC 20-193 | Created ( NPA 2020-09 ) SUBPART B — LIST OF AMC-20 ITEMS

Modified

SUBPART B -- LIST OF AMC-20 ITEMS

ERULES-1963177438-17859 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
29 May, 2021
Numeric Value Changed

Changed numeric value

Earlier evidence
20-136
Newer evidence
20-136A
Table Structure Changed

Validated table shape changed

Modified

Appendix 1 to AMC 20-9 PDC versus DCL: A Comparison

ERULES-1963177438-6957 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
29 December, 2006
Numeric Value Changed

Changed numeric value

Earlier evidence
1to
Newer evidence
1 to

Modified

Appendix 3 to AMC 20-24

ERULES-1963177438-7797 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
2 May, 2008
Numeric Value Changed

Changed numeric value

Earlier evidence
System [ 40 ]
Newer evidence
System2

Modified

GM1 to AMC 20-189 -- PR management

ERULES-1963177438-20405 GM to AMC (Guidance material to acceptable means of compliance)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
1 January, 2021, 24 July, 2020
Numeric Value Changed

Changed numeric value

Newer evidence
[ Amdt 20 / 19 ]

Modified

GM2 to AMC 20-189 -- OPR classification

ERULES-1963177438-20404 GM to AMC (Guidance material to acceptable means of compliance)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
1 January, 2021, 24 July, 2020
Numeric Value Changed

Changed numeric value

Newer evidence
[ Amdt 20 / 19 ]

Modified

Note from the editor

ERULES-1963177438-18059 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
18 December, 2020
Reference Changed

Changed regulatory reference

Newer evidence
This document will be updated regularly to incorporate further amendments .

Modified

Appendix 5 to AMC 20-20B -- Guidelines for ensuring the validity of continuing structural integrity programmes

ERULES-1963177438-18073 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
29 May, 2021
Table Structure Changed

Validated table shape changed

Added

AMC 20-136A Aircraft Electrical and Electronic System Lightning Protection

ERULES-1963177438-19877 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Content Added

Item added

Removed

AMC 20-136 Aircraft Electrical and Electronic System Lightning Protection

ERULES-1963177438-9011 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
16 July, 2015
Content Removed

Item removed

Added

AMC 20-158A Aircraft electrical and electronic system high-intensity radiated fields (HIRF) protection

ERULES-1963177438-19880 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Content Added

Item added

Removed

AMC 20-158 Aircraft Electrical and Electronic System High-Intensity Radiated Fields (HIRF) Protection

ERULES-1963177438-9013 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
16 July, 2015
Content Removed

Item removed

Added

AMC 20-189 The Management of Open Problem Reports (OPRs)

ERULES-1963177438-17862 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
1 January, 2021, 24 July, 2020
Content Added

Item added

Added

AMC 20-193 Use of multi-core processors

ERULES-1963177438-19884 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Content Added

Item added

Added

Appendix 1 to AMC 20-136A -- Definitions and acronyms

ERULES-1963177438-19878 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Content Added

Item added

Removed

Appendix 1 to AMC 20-136 Definitions and acronyms

ERULES-1963177438-9012 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
16 July, 2015
Content Removed

Item removed

Added

Appendix 1 to AMC 20-158A -- Definitions and acronyms

ERULES-1963177438-19881 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Content Added

Item added

Removed

Appendix 1 to AMC 20-158 Generic transfer functions and attenuation

ERULES-1963177438-9014 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
16 July, 2015
Content Removed

Item removed

Added

Appendix 2 to AMC 20-136A -- Examples of lightning safety assessment considerations -- Level A systems on large aeroplanes

ERULES-1963177438-19879 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Content Added

Item added

Added

Appendix 2 to AMC 20-158A -- Generic transfer functions and attenuation

ERULES-1963177438-19882 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Content Added

Item added

Added

Appendix 3 to AMC 20-158A -- Examples of HIRF safety assessment considerations -- Level A systems on large aeroplanes

ERULES-1963177438-19883 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
27 January, 2022
Content Added

Item added

Modified

AMC 20-10 Acceptable Means of Compliance for the Approval of Digital ATIS via Data Link over ACARS

ERULES-1963177438-6954 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
29 December, 2006

Modified

AMC 20-115D Airborne Software Development Assurance Using EUROCAE ED-12 and RTCA DO-178

ERULES-1963177438-9015 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
25 October, 2017

Modified

AMC 20-25A Airworthiness considerations for Electronic Flight Bags (EFBs)

ERULES-1963177438-15029 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
9 July, 2019, 28 February, 2019

Modified

Appendix 4 to AMC 20-20B Guidelines for the development of a corrosion prevention control programme

ERULES-1963177438-18072 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
29 May, 2021

Modified

Disclaimer

ERULES-1963177438-18058 AMC to CS (Acceptable means of compliance to certification specification)

Domain
Initial airworthiness
Subject
AMC-20
Regulatory date
18 December, 2020
About this comparison
Earlier source file
file_ftLzkYEblJP
Newer source file
file_tNNDI2wQkpg
Comparison method
stripped-html-v1+rich-v11
Signal method
signals-v2