Hairline crack in my hedder tube.

OK here,s pics of the crack in my hedder,the small black line is the crack and the round black mark is not a hole,it,s carbon.What,s your take on this?These are still under warranty..
View attachment New 24 foot Enclosed trailer Oct.2010 028.jpg

View attachment New 24 foot Enclosed trailer Oct.2010 029.jpg

View attachment New 24 foot Enclosed trailer Oct.2010 030.jpg