If the CAA have, or are ever likely to permit A319 operations into London City, my fur will turn pink!
I think you mean A318, only a single number wrong, but a totally different aircraft.
Is London City safe? Two tyre bursts and it is not? Swiss bent a 146, far more serious than a flat Dunlop.
Yes it is a safe airport, with safe procedures and safe crew flying the planes in and out.