In case you have a strong preference for 747s, take the 115. This is (and always was) a 747 flight. The 113 was (and is up to the end of March) a 777, and although the timetable shows a 747 for June, could conceivably get enhanced to a 777 again.

Just a thought.

Have arrived on the 115 several times and it was always empty at passport control.