GM1 21L.B.144(a) Oversight programme

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

GM1 21L.B.144(a) Oversight programme ED Decision 2023/013/R CONTENTS An oversight programme typically consists of the elements detailed in this GM. (a)     Planned continued surveillance In the planned continued surveillance, the total surveillance actions are split into several audits that are carried out at planned intervals during the oversight cycle. One aspect may be audited once or several times, depending on its importance. All relevant aspects are audited at least once within an oversight cycle. (b)     Planned inspections of produced aircraft, engines, propellers and parts For the first-article inspection (of a new product or part produced for the first time), refer to [AMC1 21L.B.143(b)](#_DxCrossRefBm1649098272). For serial production, in order to perform the inspections effectively and efficiently, the competent authority should integrate a sampling plan, as part of the planning of the continued surveillance activities, which is appropriate to the scope and size of the declared production organisation. A flexible sampling plan allows to accommodate changes in the production rate and consider the results obtained from other samples or investigation activities. (c)      Unplanned reviews Unplanned reviews are specific additional investigations of a declared production organisation related to surveillance findings or external needs. The competent authority is responsible for deciding when a review is necessary, taking into account any changes in the scope of work, changes in personnel, reports on the organisation’s performance submitted by other EASA or competent authorities’ teams, and reports on the in-service products. ##### GM1 21L.B.144(a) Oversight programme *ED Decision 2023/013/R* **CONTENTS** An oversight programme typically consists of the elements detailed in this GM. (a) Planned continued surveillance In the planned continued surveillance, the total surveillance actions are split into several audits that are carried out at planned intervals during the oversight cycle. One aspect may be audited once or several times, depending on its importance. All relevant aspects are audited at least once within an oversight cycle. (b) Planned inspections of produced aircraft, engines, propellers and parts For the first-article inspection (of a new product or part produced for the first time), refer to [AMC1 21L.B.143(b)](#_DxCrossRefBm485231769). For serial production, in order to perform the inspections effectively and efficiently, the competent authority should integrate a sampling plan, as part of the planning of the continued surveillance activities, which is appropriate to the scope and size of the declared production organisation. A flexible sampling plan allows to accommodate changes in the production rate and consider the results obtained from other samples or investigation activities. (c) Unplanned reviews Unplanned reviews are specific additional investigations of a declared production organisation related to surveillance findings or external needs. The competent authority is responsible for deciding when a review is necessary, taking into account any changes in the scope of work, changes in personnel, reports on the organisation’s performance submitted by other EASA or competent authorities’ teams, and reports on the in-service products.