GM1 21L.A.273(h) Production control system and 21L.A.275(e) Obligations of a natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1)

• ED Decision 2023/013/R found in: Initial Airworthiness and Environmental Protection (748/2012) Part-21 Part-21L (Jul 2024)

GM1 21L.A.273(h) Production control system and 21L.A.275(e) Obligations of a natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1) ED Decision 2023/013/R MAINTENANCE ACTIVITIES Point [21L.A.273](#_DxCrossRefBm1649097756)(h) requires the natural or legal person that produces under Subpart R to have procedures that cover maintenance activities of new aircraft it has manufactured, as necessary to keep them in an airworthy condition. The natural or legal person that produces under Subpart R should not maintain a newly manufactured aircraft beyond the point at which the applicable operational rules require maintenance to be performed by an approved maintenance organisation (point [21L.A.275](#_DxCrossRefBm1649098162)(e)). If the production organisation intends to maintain the aircraft beyond that point, it should apply for and obtain an appropriate maintenance approval (see Articles 3 and 4 of Regulation (EU) No 1321/2014). MAINTENANCE OF AIRCRAFT Examples of such maintenance activities are the following: — preservation, periodic inspection visits, etc.; — embodiment of a service bulletin (SB); — application of airworthiness directives (ADs); — repairs; — maintenance tasks resulting from special flights; and — maintenance tasks to maintain airworthiness during flight training, demo flights and other non-revenue flights. Any maintenance activities should be recorded in the aircraft logbook. It should be signed off for attesting the conformity of the work performed with the applicable airworthiness data. If the aircraft logbook is not available, or if the production organisation prefers to use a separate form (for instance, for a large work package or for delivery of the aircraft to the customer), the production organisation should use EASA Form 53B which should subsequently become part of the aircraft maintenance records. ##### GM1 21L.A.273(h) Production control system and 21L.A.275(e) Obligations of a natural or legal person issuing a statement of conformity (EASA Form 52B) or an authorised release certificate (EASA Form 1) *ED Decision 2023/013/R* **MAINTENANCE ACTIVITIES** Point [21L.A.273](#_DxCrossRefBm485231252)(h) requires the natural or legal person that produces under Subpart R to have procedures that cover maintenance activities of new aircraft it has manufactured, as necessary to keep them in an airworthy condition. The natural or legal person that produces under Subpart R should not maintain a newly manufactured aircraft beyond the point at which the applicable operational rules require maintenance to be performed by an approved maintenance organisation (point [21L.A.275](#_DxCrossRefBm485231659)(e)). If the production organisation intends to maintain the aircraft beyond that point, it should apply for and obtain an appropriate maintenance approval (see Articles 3 and 4 of Regulation (EU) No 1321/2014). **MAINTENANCE OF AIRCRAFT** Examples of such maintenance activities are the following: — preservation, periodic inspection visits, etc.; — embodiment of a service bulletin (SB); — application of airworthiness directives (ADs); — repairs; — maintenance tasks resulting from special flights; and — maintenance tasks to maintain airworthiness during flight training, demo flights and other non-revenue flights. Any maintenance activities should be recorded in the aircraft logbook. It should be signed off for attesting the conformity of the work performed with the applicable airworthiness data. If the aircraft logbook is not available, or if the production organisation prefers to use a separate form (for instance, for a large work package or for delivery of the aircraft to the customer), the production organisation should use EASA Form 53B which should subsequently become part of the aircraft maintenance records.