Every AD in the library whose text names the Helicopter Transport Services CH-54B, of which 5 are registered in the US.
1 not superseded, 1 of them with a repeat action. 1 listed in all, newest published July 22, 1999.
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.
