I have cracks on the upper half of the engine cowling of a RV10.
They start from the in front of the three screws and the first screw hole then go up around half of the curve of the nose on both sides.
I took it off this weekend and put two lawyers of fiberglass on the back side, even around the curved portion. Flew it 4 hours not sure its stopped cracking further?? I ve started taking pictures after each flight.
Ive owned it for the last two years and flown it almost 200 hours. Its a 2010 that was flown 200 in its first 6 years. Notice small cracking a year ago but only seemed like surface cracks. The prop has been dynamically balance and my last Savvy report says no miss firing.
Any Suggest would be great!