This document contains guidance for the system and service 
requirements performance, availability and integrity for an End-
to-End System providing Aeronautical Mobile Satellite Services 
(AMSS) to end users. The primary elements of the End-to-End 
System are also considered individually. The material should be 
useful to users, designers, manufacturers and installers of the 
AMSS system and its elements.  Superseded DO-215

NOTE:  The electronic DO-215A is a pdf file but it is not in 
searchable format.