Look up:-
http://ad.easa.europa.eu [EASA Airworthiness Directives Tool] Very useful just enter your aircraft type in the search box and all relevant ADs are displayed.
www.gsac.fr click on "telechargements" and on "Consignes de navigabilite" also includes the guides to implementation of part M, and much other useful stuff. All documents, forms, the Declaration of Maintenance, responsaibilities of owners, responsibilities of maintenance orgs, etc, available on this easy to use website.
If you have a piece of equipment which might be subject to AD action, enter the manufacturers name in the Resp for navigabilite section and the ADs will come up. EG: enter "MT Propeller", or "Becker radio", "Lycoming", etc.
http://www.apex-aircraft.com/
Click on support, and support-navigation for list of ADs, SLs, SBs, etc.
Being a commercial outfit, they will charge you money for details of the SBs, SLs, and type specific maintenance programmes which are part of the French language manuals.