Every AD in the library whose text names the Enstrom Helicopter 480B, of which 56 are registered in the US.
7 not superseded, 1 of them with a repeat action. 8 listed in all, newest published January 17, 2018.
Listed by the model designations in each AD's text. An AD written for a part number, or for "all" engines of a maker, may name no model and so not appear here: search the library for the part or the maker as well.
