(One type of airplane black box is used to record cockpit conversations (in case of catastrophe during a flight). That type is actually bright orange. They are called Black boxes after the man who invented it: Mr Black. They are also designed to be bombproof.) Most of that is irrelevant.
This geocache is a different type of airplane! black box. As you will discover, it is much more delicate, so please be gentle and replace carefully. No heavy swaps please.
7JET7 by coincidence