Rather than chip it off, take some MEK on a rag and rub at it until you can inspect it, or a dab of paint remover will easily lift it. You can then fair the edges in and retouch with paint and you will hardly notice.
I agree with others. Doubtful it is a crack.
Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.