A330 crew rest?
 

I was just on delta metal A330 finishing a TATL and had a question about the magic middle compartment in the middle of the plane.

1. I've never seen a handicapped restroom on an airplane before, is this some new standard that new retrofits need to comply with? (this plane has one)

2. Behind this door was another non-passenger door which I saw two FA's go into -- but it appeared to only lead into another barely tiny bathroom on the other side of the existing HC restroom. Are there stairs to a lower crew rest section or something here?

I'm almost always on 764's and I think I might have a new favorite with 11C and 11F on this 330.

The crew rest is behind that mysterious door and down the steps below the main cabin

And to add the pilots rest is just outside the cockpit door on the right.

All twin isle aircraft are required to have at least one restroom accessible via the onboard wheelchair. But don't expect to see anything as large as an ADA restroom stall like you see on land. I would imagine it's a pretty awkward affair.

However, some crew (PMNW) prefer to use open WBC/BE seats for rest periods. They would use yellow tape to prevent passengers from changing into "their" seats. To me, it seemed tacky and unprofessional.

It could be more complicated... In A330 cabin crew rest area is build to cargo pallets. http://www.airbus.com/aircraftfamili...mily/a330-300/

I don't know the technical specifics but I would imagine that pallet-mounted rest area could be removed easily on shorter long-haul flights to accommodate more cargo when more profitable...