My Phanto 3 4K tried trimming off the top of a 30+foot tree. The tree won. The drone, still operating bounced its way down through all the branches and landed upside down. I picked it up and the props started spinning, all was fine, no cracks etc. of course if I hadn’t almost messed my pants I would have turned it off right away. Very fortunate for sure. Your chimney was definaty harder than the branches, lolDJI Phantom 3 Standard drone (sunhans boosted) survived a crash into a chimney of a DECOMMISSIONED power station. Crash was caused by loss of signal and RTH. The drone bounced on impact, tumbled and fell, though recovered soon after, returning minus an LED cover and with torn transfers caused by a slight buckling of both fore arms