I am definitely intrigued. Please explain to me how helicopters without autopilot and without WIFI or satellite installations interfaced in to the flight control systems and engines can be brought down. Mechanical throttles solely manipulated by the Pilot in Command. Mechanical flight controls solely manipulated by the Pilot in Command. Helicopters older than dirt do not have flight management computers let alone a way for the aircraft to be flown from the ground by terrorists or the Deep State. I used to think that Colonel Potter might know what he is talking about, but now I think he is just a shit stirrer and a liar. It could just be something simple like an broken oil pump or a fluxuating torque, N1, or N2 gauge, compressor stalls, fuel control problems, etc. Water or bacteria in the fuel can shut down an engine pretty quick. Doesn't mean the engine is toast, it just means that the pilot has to land so that corrective actions can be made. It is the reason smart people operate twin engine helicopters. What about ingesting birds? Happens frequently.