Scenery Animation Manager (SAM) is a global X-Plane plugin providing different animations for custom sceneries such as moving jetways, helpful position guidance systems and animated hangars.
Airplane related animations can be used with nearly every default as well as 3rd party aircraft. You can check the Aircraft Compatibility List for further details.
The Plugin requires a correctly configured scenery in order to work. There are several freeware and payware products available.
If you like to include an animation in your own custom scenery check out the Developer Guide for further information.