We've been on a fairly long trip, and after one of the days, I opened the stove lid to see that the burner plate on one burner had come apart, and the other burner plate was loose. After searching, I found two screws in the top drawer under the stove. I could see that one screw was still holding the other burner plate on, but one was missing. I removed the stove top from the counter and turned it over to remove the metal cover plate so I could put the burner plate back on, and the other screw that was missing rolled out. I put a little blue loctite on the screws so they wouldn't back out again.
The other issue I found was that there was some corrosion on the bottom cover plate below the igniter, and some gunk around the connector for the igniter. I unscrewed the igniter button, and the AAA battery was completely corroded over. Might be another maintenance item to remove/replace the battery after each season. I prefer to use a hand lighter anyways, so I likely won't replace the igniter.