Short answer - secure anything that is removable or bring it onto the plane with you.
If something comes unattached during the flight, they may not find it in the baggage compartment.
Follow the link in my signature to the disABILITIES FAQs thread or look near the top of this board.
There is a post in that thread about air travel.
This is what we do when we travel with our daughter's wheelchair
- before travel, we check and tighten all screws and bolts
- we gate check her wheelchair so that we can use it to the door of the plane.
- just before getting on the plane, we remove everything that is not bolted or screwed on
- the pieces we remove include her seat back (attached with a sliding lever on each side); headrest (attached with 2 stews that can easily loose); the seat cushion (attached with Velcro); arm rests (secured with a lever type fastener); anti-tippers (attached with a push pin)
The anti-tippers are pretty securely attached, but we had one get bent once and at a replacement cost of $100, I choose to remove them and carry them on.
When she had swing away foot rests, we removed those also
- after the pieces are removed, I fold the wheelchair and fasten seatbelt and foot straps - if you don't, they can get caught In the wheels, which is a real pain.
- I put the smaller pieces into a bag and carry the bag, plus the seat back and cushion onto the plane with me. They go into the overhead bin or closet, if the plane has them.
- the wheelchair pieces do not count toward your carry on allowance
- I do a quick damage check and put the wheelchair back together at the door of the plane, then my husband brings our daughter out.
When we get to the resort, we check all bolts and screws again because they sometimes loosen due to the vibrations of the plane during the flight.