BA own about the same number of GE engined -200 aircraft as RR Trent powered types.
We still have 3 of the original GE -76 "A market" short range -200s ply the UK to east coast routes, whilst the longer range -85 powered models are used world wide, but lack the range and bunks of the longer legged Trent models.
BA evacuation procedures require the Fuel Cutoff Switches to be operated BEFORE the Fire Switches as a relic of the days before the Fire Switch was modified to automatically shutoff all of the fuel pump/spar valves.
AFAIK, all BA aircraft have been modified since the BA38 incident.