Ok, just a guess here on my part looking at EF at this moment. I don't know where you are located or what date preference you are using on EF and with AA so please don't take offense but July 4th for AA107 is T0 on EF but April 7th is T7. Although looking at the difference in aircraft I suspect you want July 4th.

AA 107 0 LHR JFK 77W Daily Coach - MileSAAver Award T 0
07/04/13 5:00 PM 07/04/13 8:00 PM 77% / 24m


AA 107 0 LHR JFK 777 Daily Coach - MileSAAver Award T 7
04/07/13 5:00 PM 04/07/13 8:00 PM 77% / 24m