--- title: "ML.A.101 – ML.A.907: SECTION A — TECHNICAL REQUIREMENTS (Part-ML) — rule index · Avioverse" description: "ML.A.101 – ML.A.907, Regulation (EU) No 1321/2014. This Section establishes the measures to be taken in order to ensure that the aircraft is airworthy." url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements" --- # SECTION A — TECHNICAL REQUIREMENTS Annex Vb (Part-ML) · Continuing Airworthiness · Regulation (EU) No 1321/2014 · ML.A.101 – ML.A.907 On this page 1. ## [ML.A.101 Scope](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-101) This Section establishes the measures to be taken in order to ensure that the aircraft is airworthy. 2. ## [ML.A.201 Responsibilities](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-201) The owner of the aircraft shall be responsible for the continuing airworthiness of the aircraft and shall ensure that no flight takes place unless all of… [GM1 ML.A.201 Responsibilities](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-201#gm1-ml-a-201) [GM1 ML.A.201(e) Responsibilities](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-201#gm1-ml-a-201-e) [GM1 ML.A.201(f) Responsibilities](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-201#gm1-ml-a-201-f) [GM1 ML.A.201(h) Responsibilities](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-201#gm1-ml-a-201-h) 3. ## [ML.A.202 Occurrence reporting](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-202) The following persons shall report any safety-related event or identified condition of an aircraft or component that endangers or, if not corrected or… [GM1 ML.A.202 Occurrence reporting](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-202#gm1-ml-a-202) 4. ## [ML.A.301 Continuing-airworthiness tasks](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-301) The aircraft continuing airworthiness and the serviceability of operational and emergency equipment shall be ensured by: [GM1 ML.A.301(f) Continuing airworthiness tasks](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-301#gm1-ml-a-301-f) 5. ## [ML.A.302 Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302) The maintenance of each aircraft shall be organised in accordance with an AMP. [AMC1 ML.A.302 Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#amc1-ml-a-302) [AMC2 ML.A.302 Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#amc2-ml-a-302) [GM1 ML.A.302 Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#gm1-ml-a-302) [GM2 ML.A.302 Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#gm2-ml-a-302) [AMC1 ML.A.302(c) Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#amc1-ml-a-302-c) [AMC1 ML.A.302(c)(9) Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#amc1-ml-a-302-c-9) [GM1 ML.A.302(c)(2)(b) Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#gm1-ml-a-302-c-2-b) [GM1 ML.A.302(c)(3) Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#gm1-ml-a-302-c-3) [GM1 ML.A.302(c)(4) Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#gm1-ml-a-302-c-4) [AMC1 ML.A.302(d) Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#amc1-ml-a-302-d) [GM1 ML.A.302(d)(2) Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#gm1-ml-a-302-d-2) [GM1 ML.A.302(d)(2)(d) Aircraft maintenance programme](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-302#gm1-ml-a-302-d-2-d) 6. ## [ML.A.303 Airworthiness directives](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-303) Any applicable AD must be carried out within the requirements of that AD unless otherwise specified by the Agency. 7. ## [ML.A.304 Data for modifications and repairs](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-304) A person or organisation repairing an aircraft or a component shall assess any damage. 8. ## [ML.A.305 Aircraft continuing-airworthiness record system](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-305) At the completion of any maintenance, the certificate of release to service (CRS) required by point ML.A.801 shall be entered in the aircraft continuing… [AMC1 ML.A.305 Aircraft continuing-airworthiness record system](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-305#amc1-ml-a-305) 9. ## [ML.A.307 Transfer of aircraft continuing-airworthiness records](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-307) When an aircraft is permanently transferred from one owner to another, the transferring owner shall ensure that the continuing airworthiness records… 10. ## [ML.A.401 Maintenance data](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-401) The person or organisation maintaining an aircraft shall only use applicable maintenance data during the performance of maintenance. [GM1 ML.A.401(b) Maintenance data](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-401#gm1-ml-a-401-b) 11. ## [ML.A.402 Performance of maintenance](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-402) Maintenance performed by approved maintenance organisations shall be in accordance with Subpart F of Annex I (Part-M), Annex II (Part-145) or Annex Vd… [AMC1 ML.A.402 Performance of maintenance](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-402#amc1-ml-a-402) [AMC1 ML.A.402(b)(7) Performance of maintenance](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-402#amc1-ml-a-402-b-7) [AMC1 ML.A.402(b)(8) Performance of maintenance](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-402#amc1-ml-a-402-b-8) [AMC2 ML.A.402(b)(8) Performance of maintenance](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-402#amc2-ml-a-402-b-8) 12. ## [ML.A.403 Aircraft defects](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-403) Any aircraft defect that seriously endangers the flight safety shall be rectified before further flight. [AMC1 ML.A.403 Aircraft defects](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-403#amc1-ml-a-403) [GM1 ML.A.403 Aircraft defects](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-403#gm1-ml-a-403) [AMC1 ML.A.403(d) Aircraft defects](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-403#amc1-ml-a-403-d) 13. ## [ML.A.501 Classification and installation](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-501) Unless otherwise specified in Subpart F of Annex I (Part-M), in Annex II (Part-145), in Annex Vd (Part-CAO) to this Regulation or in point 21.A.307 of… [GM1 ML.A.501(a) Classification and installation](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-501#gm1-ml-a-501-a) [AMC1 ML.A.501(a)(ii) Classification and installation](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-501#amc1-ml-a-501-a-ii) [AMC1 ML.A.501(e) Classification and installation](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-501#amc1-ml-a-501-e) 14. ## [ML.A.502 Component maintenance](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-502) Components which are accepted by the owner in accordance with point (b)(2) of point 21.A.307 of Annex I (Part 21) or with point (b)(2) of point 21L.A.193… [GM1 ML.A.502 Component maintenance](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-502#gm1-ml-a-502) [GM1 ML.A.502(c) Component maintenance](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-502#gm1-ml-a-502-c) 15. ## [ML.A.503 Service-life-limited components](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-503) The term ‘service life-limited components’ contains the following components: 16. ## [ML.A.504 Control of unserviceable components](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-504) A component shall be considered unserviceable in any of the following circumstances: 17. ## [ML.A.801 Aircraft certificate of release to service](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-801) A CRS shall be issued after the required maintenance has been carried out properly on an aircraft. [AMC1 ML.A.801 Aircraft certificate of release to service](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-801#amc1-ml-a-801) [AMC1 ML.A.801(e) Aircraft certificate of release to service](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-801#amc1-ml-a-801-e) [AMC1 ML.A.801(f) Aircraft certificate of release to service](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-801#amc1-ml-a-801-f) 18. ## [ML.A.802 Component certificate of release to service](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-802) Except for the cases covered by point (c) of point ML.A.502, a component CRS shall be issued after the required maintenance work has been properly… 19. ## [ML.A.803 Pilot-owner authorisation](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-803) To qualify as a pilot-owner, the person must: hold a valid pilot licence or equivalent licence issued or validated by a Member State for the aircraft… [AMC1 ML.A.803 Pilot-owner authorisation](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-803#amc1-ml-a-803) 20. ## [ML.A.901 Airworthiness review — General](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-901) To ensure the validity of the airworthiness certificate, an aircraft shall periodically undergo an airworthiness review in accordance with point ML.A.903. [GM1 ML.A.901 Aircraft airworthiness review](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-901#gm1-ml-a-901) 21. ## [ML.A.902 Validity of the airworthiness review certificate](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-902) An ARC shall be valid for 1 year and its validity may be extended for another year for a maximum of two consecutive extensions. 22. ## [ML.A.903 Airworthiness review process](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-903) An airworthiness review is a process that comprises all the tasks and activities for evaluating the airworthiness status of an aircraft based on a… [AMC1 ML.A.903(i) Airworthiness review](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-903#amc1-ml-a-903-i) 23. ## [ML.A.904 Airworthiness review staff](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-904) Airworthiness review staff acting on behalf of the competent authority shall be qualified in accordance with point ML.B.901(c). [GM1 ML.A.904(c) ;(d) Qualification of airworthiness review staff](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-904#gm1-ml-a-904-c) 24. ## [ML.A.905 Transfer of aircraft registration within the Union](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-905) When transferring within the Union an aircraft registration of an aircraft that has, at the time of application, an airworthiness certificate issued in… 25. ## [ML.A.906 Airworthiness review of aircraft without an airworthiness certificate issued in accordance with Regulation (EU) No 748/2012](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-906) When applying for an airworthiness certificate for aircraft not having an airworthiness certificate issued in accordance with Regulation (EU) No 748/2012… 26. ## [ML.A.907 Findings](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-a-technical-requirements/ml-a-907) Following receipt of the notification of findings from the competent authority in accordance with point ML.B.907, the person or organisation responsible… Consolidated from the EASA Easy Access Rules (revision 2 Sep 2025, extracted 13 Oct 2026) for convenience. 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