Mostly testing and approving.Yup... and the reason is because some engineer designed a $10,000 toilet seat.
Everything bolted down into an aircraft has to demonstrate it will not break off its mounts under acceleration forces that would occur in a survivable accident. The test is performed by pulling on the object in 3 direction at G loads specified by the FAA.I'm not trying to be stupid John but what is a crash load? Just interested how the testing works.
Interesting. That’s probably why sometimes when I’m looking for electronics parts I will run across something like a potentiometer that for my needs is a $2 part whereas the top prices for components that perform the same function can be in the thousands.Mostly testing and approving.
All aircraft parts...especially in the interior are tested for G forces, burn rate and toxicity.
It could be an off the shelf part from Home Depot....but until it's tested and approved and has documentation to back it....