--- title: "CAO.A.025 Combined airworthiness exposition — Part-CAO · Avioverse" description: "The CAO shall provide a manual containing at least the following information:" url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-cao/section-a-organisation-requirements/cao-a-025" --- # CAO.A.025 Combined airworthiness exposition Annex Vd (Part-CAO) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025 IR Implementing rule ## CAO.A.025 Combined airworthiness exposition (a) The CAO shall provide a manual containing at least the following information: (1) a statement signed by the accountable manager confirming that the [organisation](https://avioverse.aero/glossary/easa/organisation) will at all times work in accordance with the requirements of this Annex and the CAE; (2) the CAE's scope of work; (3) the title(s) and name(s) of the person(s) referred to in points (a) and (b) of point CAO.A.035; (4) an organisation chart showing the chains of responsibility between the person(s) referred to in points (a) and (b) of CAO.A.035; (5) a list of [certifying staff](https://avioverse.aero/glossary/easa/certifying-staff) with their scope of approval, if such staff exist; (6) a list of staff responsible for the development and approval of [aircraft](https://avioverse.aero/glossary/easa/aircraft) [maintenance](https://avioverse.aero/glossary/easa/maintenance) programmes (AMPs) with their scope of approval, if such staff exist; (7) a list of airworthiness review staff with their scope of approval, as well as staff authorised to develop an evaluation programme and conduct the corresponding investigation activities, if such staff exist; (8) a list of staff responsible for the issuance of permits to fly, if such staff exist; (9) a general description and location of the facilities; (10) procedures specifying how the CAO shall ensure compliance with the requirements of this Annex; (11) the CAE amendment procedure, as provided for in point (b) of point CAO.A.105. (b) The initial CAE shall be approved by the competent authority. (c) Amendments to the CAE shall be handled in accordance with point CAO.A.105. IR · CAO.A.025 — Regulation (EU) No 1321/2014 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025 AMC Acceptable means of compliance ## AMC1 CAO.A.025 Combined airworthiness exposition (CAE) This AMC provides an outline of the layout of an acceptable CAE. | Chapter | Description | Implementing rule reference | | ------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- | | PART A — GENERAL DESCRIPTION | | | | A.1 | Statement by accountable manager | CAO.A.025(a)(1); CAO.A.035(a) | | A.2 | General presentation of the [organisation](https://avioverse.aero/glossary/easa/organisation) | CAO.A.035(a); CAO.A.100(e) | | A.3 | Description and location of the facilities | CAO.A.025(a)(9); CAO.A.030 | | A.4 | Scope of work | CAO.A.020(a); CAO.A.025(a)(2); CAO.A.095(e); Appendix I point (a) | | A.5 | Exposition amendments and changes to the organisation | CAO.A.025(a)(11)/(c); CAO.A.105 | | A.6 | Procedure for alternative means of compliance | CAO.A.017 | | A.7 | Management personnel | CAO.A.025(a)(3); CAO.A.035(b); CAO.A.100(a) | | A.8 | Organisation chart | CAO.A.025(a)(4) | | A.9 | Manpower resources | CAO.A.035(d) | | A.10 | List of [certifying staff](https://avioverse.aero/glossary/easa/certifying-staff) | CAO.A.025(a)(5) | | A.11 | List of staff responsible for the development and approval of the [aircraft](https://avioverse.aero/glossary/easa/aircraft) [maintenance](https://avioverse.aero/glossary/easa/maintenance) programme (AMP) | CAO.A.025(a)(6) | | A.12 | List of airworthiness review staff | CAO.A.025(a)(7); CAO.A.045(d) | | A.13 | List of staff responsible for the issuance of permits to fly | CAO.A.025(a)(8) | | A.14 | List of staff responsible for the evaluation programme | CAO.A.025(a)(7) | | PART B — GENERAL PROCEDURES | | | | B.1 | Quality (or organisational review) system | CAO.A.100(a)/(b)/(d)/(e)/(f) | | B.2 | Audit plan (or frequency and content of organisational review) | CAO.A.100(b)/(f) | | B.3 | Monitoring of maintenance contracts | CAO.A.100(b)(2) | | B.4 | Qualification, assessment and training of staff | CAO.A.035(c)/(d)/(e)/(f); CAO.A.040(a); CAO.A.045(a)/(b)/(c); CAO.A.060(a) | | B.5 | One-off certification authorisation | CAO.A.040(b) | | B.6 | Limited certification authorisation | CAO.A.040(c) | | B.7 | Subcontracting | CAO.A.095(a)(2)/(b)(3); CAO.A.100(f) | | B.8 | Maintenance data and [continuing airworthiness](https://avioverse.aero/glossary/easa/continuing-airworthiness) management data | CAO.A.055(a); CAO.A.080 | | B.9 | Records management and retention | CAO.A.035(e); CAO.A.040(d); CAO.A.045(e); CAO.A.050(b); CAO.A.060(j); CAO.A.075(a)/(b)(9); CAO.A.090; CAO.A.100(c); CAO.A.085 | | B.10 | Carrying out the airworthiness review | CAO.A.085; CAO.A.095(c)(1); CAO.A.095(c)(2) | | B.11 | Conformity with approved flight conditions | CAO.A.095(d) | | B.12 | Issue of the permit to fly | CAO.A.095(d); CAO.A.045(a) | | B.13 | Development and implementation of an evaluation programme | CAO.A.095(c)(3) | | B.14 | Procedure for the issue of a recommendation to the competent authority for the issue of a Part-66 licence in accordance with point 66.B.105 (limited to the cases in which the competent authority for the Part-CAO approval and for the Part-66 licence is the same). | 66.B.105 | | PART C — MAINTENANCE PROCEDURES | | | | C.1 | Maintenance — general | CAO.A.025(10) | | C.2 | Work order acceptance | CAO.A.055(b) | | C.3 | Components, equipment, tools and material (supply, acceptance, segregation, storage, calibration, etc.) | CAO.A.050; CAO.A.060(d); CAO.A.030(b) | | C.4 | Maintenance facility (selection, organisation, cleanliness and environmental limitations) | CAO.A.060(b)/(e)/(f) | | C.5 | Maintenance accomplishment and maintenance standards | CAO.A.095(a)(1); CAO.A.060(c); Appendix I points (b)/(c)/(d) | | C.6 | Prevention of maintenance error | CAO.A.060(g)/(i) | | C.7 | Critical maintenance tasks and error-capturing method | CAO.A.060(h) | | C.8 | Fabrication | CAO.A.020(c) | | C.9 | Certifying staff responsibilities and maintenance release | CAO.A.040(a); CAO.A.065; CAO.A.070; CAO.A.095(a)(4) | | C.10 | Defects arising during maintenance | CAO.A.075(b)(6) | | C.11 | Maintenance away from approved location | CAO.A.095(a)(3) | | C.12 | Procedure for [component](https://avioverse.aero/glossary/easa/component) maintenance under aircraft or engine rating | Appendix I point (b)/(c) | | C.13 | Procedure for maintenance on installed engine (or component) under engine (or component) rating | Appendix I point (c)/(d) | | C.14 | Special procedures (specialised tasks, non-destructive testing (NDT), engine running, etc.) | CAO.A.030(a); Appendix I point (e) | | C.15 | Issue of airworthiness review certificate (ARC) under maintenance privilege | CAO.A.095(c)(2) | | PART D — CONTINUING AIRWORTHINESS MANAGEMENT PROCEDURES | | | | D.1 | Continuing airworthiness management — general | CAO.A.025(10); CAO.A.095(b)(1); CAO.A.075(a)/(b)(7)/(b)(9) | | D.2 | Minimum equipment list (MEL) (and configuration deviation list (CDL)) application | CAO.A.075(a) | | D.3 | AMP development, control and periodic review | CAO.A.075(a)/(b)(1)/(b)(2); CAO.A.095(b)(2) | | D.4 | Airworthiness directives and other mandatory airworthiness requirements | CAO.A.075(a)/(b)(5)/(b)(8) | | D.5 | Modifications and repairs | CAO.A.075(b)(3) | | D.6 | [Pre-flight inspection](https://avioverse.aero/glossary/easa/pre-flight-inspection) | CAO.A.075(a) | | D.7 | Defects | CAO.A.075(b)(6) | | D.8 | Establishment of contracts and work orders for the maintenance | CAO.A.075(a)/(b)(4)/(b)(7) | | D.9 | Coordination of maintenance activities | CAO.A.075(b)(8) | | D.10 | Mass and balance statement | CAO.A.075(a)/(b)(10) | | D.11 | Issue of ARC or ARC recommendation | CAO.A.095(c)(1)(i); CAO.A.095(c)(1)(ii) | | D.12 | ARC extension | CAO.A.095(b)(4) | | D.13 | Maintenance check flights | CAO.A.075(a) | | PART E — SUPPORTING DOCUMENTS | | | | E.1 | Sample documents | | | E.2 | List of subcontracted organisations | | | E.3 | List of organisations contracted by the CAO | | | E.4 | Aircraft technical log system (if applicable) | | | E.5 | List of the currently approved alternative means of compliance | | | E.6 | Copy of contracts for subcontracted continuing airworthiness tasks | | AMC · AMC1 CAO.A.025 — Regulation (EU) No 1321/2014 · ED Decision 2026/005/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025 AMC Acceptable means of compliance ## AMC2 CAO.A.025 Combined airworthiness exposition (CAE) (a) Personnel should be familiar with those parts of the CAE that are relevant to their tasks. (b) The CAO may use electronic data processing (EDP) for the publication of the CAE. Attention should be paid to the compatibility of the EDP systems with the necessary dissemination, both internally and externally, of the CAE. AMC · AMC2 CAO.A.025 — Regulation (EU) No 1321/2014 · ED Decision 2020/002/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025 [All rules in SECTION A — ORGANISATION REQUIREMENTS](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-cao/section-a-organisation-requirements) Consolidated from the EASA Easy Access Rules (revision 2 Sep 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.