It happens when I'm over water (Blake Sea), so there are no "forbidden" areas beneath me. It's an anphibian plane so if they'd let me re-rez the damn thing I wouldn't be as angry. I'll try the NE quadrant like he was saying, but there's still no reason for it to be happening.
Also, what if I'm not flying a seaplane? I'll have to somehow get it back in the air after I finally figure out how I'm gonna re-rez it in the water. Convenient, huh?