Develop of little and superficial cracks over canopy and in door upper mount area is a known probem. Anyway, normally, the cracks will not result in main structure cracks or damage. If you use the aircraft a lot without cabin door installed be carefully on VNe values as stated in Flight Manual.
Also, if you operate hooking within the limits no crack should be developed in that area.
Anyway if you have a FLIR installed you must have an STC application and a FLIR Supplement in your customized Flight Manual.
Have you found also some crakcs in the lower left-hand zone where the FLIR is mounted in the proximity of the mounting tube?
I'm not a Eurocopter Engineer, but an Young HelPilot still working in engineering department of a CAMO which sometimes I receive these issues.
Regards,
PapaEcho
