Operator: The helicopter for the 100 hour is over here.
Engineer: Whats that stuck on the windscreen?
Owner: Its this great stuff they use on racing cars
Eng: Have you got an approval for that?
Op: Err well no but we think it's a great idea.
Eng: I think it's a great idea as well, when you've got an approval for it or taken it off I will come back and certify the aircraft for you.
Have a nice day, Byeeeee !!!!!