Originally Posted by
Saint4805
I just called BA customer services in Turkey who were helpful and clear.
All trolley cabin bags must be checked into the hold. PAX are allowed to bring any other non-wheeled cabin bag e.g. rucksack plus another small bag e.g. laptop bag/handbag on board. The non-wheeled cabin bag can go in the overhead bin and the small bag under the seat in front. I just hope the check-in and gate staff are singing from the same hymn sheet.
Reading all of the above it appears to revolve (pun intended) around wheels. So roll on (pun again intended) the new generation of carry on luggage where the wheels can be removed and stowed in a special small compartment shortly before adherence to this rule is checked.