I got it - CGr = Crashed & Grounded. I feel for you.

And, seriously, bless you heart. Never had to make a call to the Coast Guard (except to an auxiliary to report HALF a capsized canoe with prop slashes bobbing along nose up that we came across early one morning in the middle of Cayuga Lake). Came close on Lake Ontario in a storm that blew in while still six hours from shore trying to get across to the canal at Oswego.