You've ruffled a few feathers there mikeferg, but the way you put it means that you perhaps deserved a bit of a backlash.
Next point is, where are you operating and where are you aircraft registered? Its important because the various countries of registration operate quite different systems. In the UK for example, any task that is made mandatory in the country of origin or design is automatically applicable together with any extras that the UKCAA choose to impose. In the USA only FAA mandatories apply and they don't necessarily include everything from the country of origin.
So, if as it appears from the location at the foot of your post, you are in the USA, all the mandatories for your aircraft are on the FAA site to which MrLobotomy directed you, but to be more specific the ADs are given
here and Advisory Circulars are given
here. Your maintenance people will have been supplied with various telexes and advisory information from the manufacturers and possibly initiated actions before the FAA actually make them mandatory, but until they are listed they are only voluntary. [Don't forget to monitor the engine and equipment sections as well as the aircraft section. You have to comply with them as well.}
Service Bulletins are often superseded by revisions and in many cases it doesn't really matter which revision the SB was incorporated at - it depends on the effectivity section at the front of the SB itself. If you really want to know the current revision status of any SB the only way is to subscribe to the various manufacturers' SB services. Very costly! I'm afraid.you'll just have to trust 'the mechanic' or at least the back office chap who raised the relevant work package that the mechanic worked with ..