It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
I wonder if the pilot stopped the rotors on purpose (is that possible to do manually, for emergencies?), perhaps a foreseen fault, and better option to halt the rotors before impact. Just the roof looks really thin and hardly able to provide a strong enough barrier between the blades and the interior, should they directly touch.
A helicopter that crashed into a bar in Glasgow, killing nine people, did not suffer an engine failure, investigators have said. An initial report from the Air Accidents Investigation Branch (AAIB) found that "all significant components were present" when the police aircraft came down on the Clutha bar last month. It also confirmed that while all rotor blades were attached at the time of impact, neither the main blades nor the tail blades were rotating. "Initial evidence indicated that the helicopter struck the flat roof of the single-storey building with a high rate of descent and low/negligible forward speed," the report said. It added: "Initial assessment provided no evidence of major mechanical disruption to either engine and indicated that the main rotor gearbox was capable of providing drive."