The EASA requirements for continuing airworthiness are described in a Regulation known (at least until next amendment) as “Regulation (EU) No 1321/2014“, which is a a set of rules divided by different domain as below detailed.

The Regulation is mostly applicable to EU registered Aircraft (including any component for installation thereto), unless their regulatory safety oversight has been delegated to a third country and they are not used by an EU operator.

The set of rules within the Regulation are made of five ANNEXES (I, II, III, IV and V), also named rispectively:

  • EASA Part M
    Rules for the maintenance management of the aircraft, focusing on “engineering companies” known as “CAMO” who are responsible for the airworthiness of the aircraft. They monitor the aircraft, the engines, the components and plan the maintenance actions to ensure the aircraft is always “safe for flight”.
  • EASA Part 145
    Rules for the maintenance organisations that carry out the maintenance works on aircraft and components (including engines).
  • EASA Part 66
    Rules for the maintenance licenses for the engineers (mechanics and avionics) who work in the Part 145 Maintenance Organisations.
  • EASA Part 147
    Rules for the training organisations that are supposed to train the engineers (mechanics and avionics) who will work on aircraft and components within Part 145 Organizations.
  • EASA Part T
    Rules for aircraft registered in a non-EU country whose oversight has not been delegated to an EU Member State. It is about the airworthiness management of aircraft which are leased for a short term (less than 7 months). Here are the requirements for the CAMO (approved in accordance with Part-M, subpart G) to become a CAMO-T (approved in accordance with Pat-T, subpart G as well) for the managed of such leased aircraft.

These are the rules that are strictly dedicated to the aircraft and its components during their “operative life”, therefore the period which is subsequent to the design and production phases (for which the EASA Part 21 rules).

Recently the EASA has published a consolidated version of the whole Continuing Airworthiness Regulation and you can just click below to accede to it.

As EASA explains on its website: 

This document includes the current applicable Implementing Rules (IRs), Acceptable Means of Compliance (AMC) and Guidance Material (GM) in a consolidated, easy-to-read format. It covers all the annexes of Regulation (EU) No 1321/2014, i.e. Part-M, Part-145, Part-66, Part-147 and Part-T and offers advanced navigation features through links and bookmarks as well as identification of General Aviation alleviations.

NOTE: The linked file is up to date (JUNE 2017)