sentences:  Specific terms of the agreement were not disclosed.The agreement was a lucrative move for American Airlines which like AMR Eagle Holdings was also a subsidiary of AMR Corporation, by offering the mainline carrier prime gate opportunities and landing slots at Boston Logan, New York LaGuardia, and Washington National airports, plus acquisition of an outstanding order of Embraer ERJ 135 jets.The airline held twenty firm orders and forty options for Embraer equipment with first deliveries scheduled in August 1999.