This Notice of Proposed Amendment (NPA) proposes to amend CS-E to modernise the applicable engine certification test requirements as follows:
- update the turbine-engine endurance test specifications taking into account modern turbofan-engine design characteristics;
- improve the level of confidence in the robustness of turbine-engine designs prior to entry into service by requiring a test to demonstrate the engine’s initial maintenance programme (IMP);
- ensure that EASA oversees IMP tests and benefits from the corresponding knowledge gained that can help understand the potential required corrective actions when turbine-engine continuing airworthiness issues are discovered;
- ensure a robust and harmonised substantiation of piston-engine time between overhauls (TBO) / time between replacements (TBR) intervals and the related maintenance programme;
- ensure as much as possible harmonisation with the corresponding FAA regulations and certification policies.
The proposed regulatory material is expected to improve safety and have a positive economic impact.
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