I am scheduled on BA flights LAX-LHR-ABZ on December 7th. My original connection time at LHR was 1:30, which was fine as both flights arrive/depart in T5. Now i have been notified that the departure time on the LAX-LHR leg has been changed which now gives me just 50 minutes to connect from an international flight to a domestic. I did expect to receive a notice from BA that they were changing my ABZ flight due to the tight connection, but nothing so far. Is 50 minutes doable?