JFK to San Juan on 3-1-07

[Delta777LR]

my dad and I are planing a trip to San Juan from 3-1 to 3-4. I Believe im flying either on American or JetBlue, im not sure which airline yet at least till next week or so. I flew American Airlines on an A300 back in 2003 and now im wonder what other type of aircrafts American uses to San Juan other than the Airbus A300?

[Iberia A340-600]

Currently American is flying 3 daily A300s, 1 daily 757-200 from JFK, 1 Daily 757-200 from EWR, and a daily 767-300 flight.