Original Message

Bell 47 pilots had a bad habit of servicing their own chemical spray rigs while the engine and rotors were turning. 

They would sometimes walk behind the helicopter to get to the other side.... which means behind the tail rotor.  I know of two instances where complacency set in.... 

....and the pilot walked into his own tail rotor. 

I got my buttt severely chewed out for ducking under my tail boom while the helicopter was running.  [PHI]  I was lucky not to get fired. There was another pilot on board, ---- training in LFT.