Originally Posted by rv9builder
Tom, where did it crack? Did Van's have any suggestions about how to prevent the problem?
The crack is about 1.5 inches long and started about two inches above the trailing edge of the canopy skirt. The crack does not penetrate completely through the Lexan but has an internal void appearance like an elongated air bubble was trapped inside. The crack is near the fuel filler side of the canopy.
The best prevention is keeping the canopy free of contamination, particularly from fuel, and be sure to use only cleaning solutions approved for Lexan. I've been careful during the fueling process so my best guess is that my failure was related to stress and/or vibration.
On Van's website you can find some guidance on the proper care and feeding of your canopy.