Post published:November 19, 2015Post category:Advertisements / CollectiblesPost comments:0 Comments Advert for TCAS (traffic collision avoidance system) 1988Share This Tags: american airlines, piedmont, southwest You Might Also Like Classic Airline Postage Stamps November 6, 2015 the Mysterious Ghosts of Flight 401 October 31, 2013 Collection (AMC) Mike Sellers April 24, 2014Leave a ReplyYou must be logged in to post a comment.