How was it attached? Suction cup? if i use the suction cup i will use a custom made tether, strong cable with 2 swivel fitting to prevent the cable twisting up if it does come loose and spin in the breeze for a few hrs. usually suction mounted somewhere near a good tether point such as a tie down point and where it cannot interfere with a flight control, such as the rear strake of a jabiru. i dont want any video evidence landing on someones head/car/boat/house etc.
Just how much force would be exerted on a Gopro in flight? and its mount, when you consider most engine cowlings are held with just 4 or 6 dzus fasteners, not know for being super strong in the fastener department, yet strong enough to hold a sometimes large cowling on at VNE.. and up to the G limit.