Originally Posted by
vctenderness
After 40 years flying as cabin crew I had a pretty good basic knowledge of the flight deck.
However if I had been sitting in on the German Wings flight whilst the Captain was absent I would not have noticed anything unusual in the co pilot altering the flight level it would be a normal action if he had received instructions from ATC.
I'd be willing to bet that every member of the cabin crew realised that descending 30,000 feet less than an hour after departure from BCN wasn't SOP.