First Flight Challenges
There rarely seem to be any challenges these days.
In the old days the test pilots would strap themselves in, light the fires and take the aircraft up for a quick circuit and get it back down ASAP before one of the many items that are clearly wrong / broken / rattling / wobbling / leaking / overheating bring it down in a smoking ruin of bent, shattered and charred aluminium. A lifetime of excitement compressed into 5 minutes of sheer exhilaration, possibly ending in some parachute time.
Nowadays it's normal to be able to take the plane up for hours on the first flight and fully explore the flight envelope. One wonders what the remainder of the flight test campaign is really for these days.
Of course, this is a good thing.
Anyway, congrats to Airbus and the wider aviation community for getting it right so often. It's become so normal that we moan about delays.