So...
1st 6 months we make 1.9B
Due to rwy closure the profit was reduced by 1.0b, so we would have made 2.9B given no rwy closure.
Full year profit 5.5B. We made 2.2B savings due to lower price of oil. That means 5.5 -2.2 = 3.7 given no oil price drop.
So in the 2nd half we made 3.7 - 1.9 = 1.4B profit given no oil proce drop. And that is with 24 aircraft deliveries!
I smell a rat!