Originally Posted by JohnAx

Speaking of quirks, I could have sworn I posted this follow-up a couple of hours ago:

I rechecked availability on EF and indeed saw F0 A0 again. Note that this was without typing CX into the airline-choice field. I backed up and did it again, this time specifying CX, as you may have done. Guess what - availability (presumably incorrectly) becomes F4 A4.

Also, the a/c type was 744 for the first case (typing nothing in the airline box) and 74A the second time.

As I mentioned above, I'd previously noticed problems with typing in an airline designator. Among other things, I was looking for avail on a CX HKG-PEK flight and since there are a zillion others, I put CX in the box. No CX flight!!! Erase it, and the CX flight appears, you just have to search diligently to find it among the chaff.