Tom Schmidt & John Walker unscrew the "jesus nut" Jesus nut is off, ready to pull the mast assembly.
Tom Schmidt steadys the blade head as John Walker lifts it off of 803  
  Old blades are off.
Installing the new blades in the main rotor head.  
New blades are on! Out for our first ground turn.
  Tweaking the trim tab.
First ground turn for the new blades. Note the timing light flash in the windshield.
First hover.  
After a couple of minor tweeks, Chris reinstalls all the safety wires. Off for one more flight.
She tested perfectly! Blades are as perfectly balanced as you could ask for. She is on smooth bird!