ML.A.402 Performance of maintenance

• Regulation (EU) 2019/1383 found in: Continuing Airworthiness (1321/2014) Part-M Part-145 Part-66 Part-147 Part-T Part-ML Part-CAMO Part-CAO (Jul 2024)

ML.A.402 Performance of maintenance Regulation (EU) 2019/1383 (a) 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 (Part-CAO), as applicable. (b) For maintenance not performed in accordance with point (a), the person performing maintenance shall: (1) be qualified for the tasks performed, as required by this Annex; (2) ensure that the area in which maintenance is carried out is well organised and clean with no dirt or contamination; (3) use the methods, techniques, standards and instructions specified in the maintenance data referred to in point [ML.A.401](#_DxCrossRefBm1518545081); (4) use the tools, equipment and material specified in the maintenance data referred to in point [ML.A.401](#_DxCrossRefBm1518545081). If necessary, tools and equipment shall be controlled and calibrated to an officially recognised standard; (5) ensure that maintenance is performed within any environmental limitations specified in the maintenance data referred to in point [ML.A.401](#_DxCrossRefBm1518545081); (6) ensure that proper facilities are used in case of inclement weather or lengthy maintenance; (7) ensure that the risk of multiple errors during maintenance and the risk of errors being repeated in identical maintenance tasks are minimised; (8) ensure that an error-capturing method is implemented after the performance of any critical maintenance task; (9) perform a general verification after completion of maintenance to ensure that the aircraft or component is clear of all tools, equipment and any extraneous parts and material, and that all access panels removed have been refitted; (10) ensure that all maintenance performed is properly recorded and documented. #### ML.A.402 Performance of maintenance *Regulation (EU) 2019/1383* (a) 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 (Part-CAO), as applicable. (b) For maintenance not performed in accordance with point (a), the person performing maintenance shall: (1) be qualified for the tasks performed, as required by this Annex; (2) ensure that the area in which maintenance is carried out is well organised and clean with no dirt or contamination; (3) use the methods, techniques, standards and instructions specified in the maintenance data referred to in point [ML.A.401](#_DxCrossRefBm1203439968); (4) use the tools, equipment and material specified in the maintenance data referred to in point [ML.A.401](#_DxCrossRefBm1203439968). If necessary, tools and equipment shall be controlled and calibrated to an officially recognised standard; (5) ensure that maintenance is performed within any environmental limitations specified in the maintenance data referred to in point [ML.A.401](#_DxCrossRefBm1203439968); (6) ensure that proper facilities are used in case of inclement weather or lengthy maintenance; (7) ensure that the risk of multiple errors during maintenance and the risk of errors being repeated in identical maintenance tasks are minimised; (8) ensure that an error-capturing method is implemented after the performance of any critical maintenance task; (9) perform a general verification after completion of maintenance to ensure that the aircraft or component is clear of all tools, equipment and any extraneous parts and material, and that all access panels removed have been refitted; (10) ensure that all maintenance performed is properly recorded and documented.