1)No FAA age limit for cabin crew for 14CFR121 certificated operations, and this can be proven by looking at some of the grandma's on some NWA and UAL flights.
2)Now, with your FAA ATPL license, you can operate that 'N' registered Gulfstream 'til you're 80 (if you like) provided you can pass the standard FAA medical (First or second class, depending) and can pass the yearly check.
The oldest business jet Captain I personally know is 72, but there may indeed be older similar pilots
3) Pierre will learn three new words....button your lip
In the same ballpark, Vagabond 747.
Altho pilots of US aircarriers will still be limited to age 60 in the USA, they can certainly go overseas and continue to fly until 65, at other airlines, provided the concerned CAA's allow.