3. the valve cap on the wheel assy's is a different size from the caps on the brake bleeder ports so it is not possible to swap their position
Erm, actually on some you can. Not all wheels are fitted with the large bore inflation oriface thingy.
Seen A320 with large bore and A330 with small (standard) bore.
Operator specific perhaps.
British Commonwealth Aviation Regs
I think you need to read up a bit on the way the braking system works and its level of redundancy, losing one system hyd system wont mean you lose braking,
Oh dear. Back to class.
