AA 136 is my preferred LAX-LHR flight, but it does seem to have bad luck. I was on board last 9 August and we were one of the last planes allowed to land in LHR before the airport was shut down as the "bottle bomb" arrests were made.
Nothing like completing the 11+ hour flight and then suddenly stopping on the ramp then being told the airport was shut down. We stayed on board for over 3 hours without having any clue what was happening, although the AA staff handled the situation well.
I flew back to LAX on 16 August and had the closest thing the UK and US governments could get to a full body cavity search. Good times. Not!