Every AD in the library whose text names the de Havilland DHC-4A, of which 10 are registered in the US.
3 not superseded. 3 listed in all, newest published February 14, 2008.
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.
