On 6/5/20 4:25 PM, wrote:
Are they so bad that polishing them out with fine wet sandpaper is out of the question?


Don't know. He did use the term "corroded" so that implies a
significant problem. He is an A&P who works on helicopters, hoping to
find technical documentation on the issue. Says the factory is shut
down with the virus situation and not currently responding to support
requests.