The concept of Aviation Product Liability is relatively simple. All parties in the chain of commerce are held liable for bodily injury or property damage caused by the commercial product. In the event of a lawsuit, the plaintiffs' counsel will identify the entire supply chain including the manufacturer. As a defendant, you will need to retain counsel with an aviation specialty. An aviation product liability insurance policy will help you avoid catastrophic expenses.
In aviation/aerospace the stakes are greater and especially for catastrophic losses.