fast puzzle, knock knock

[A440A@AOL.COM]

Greetings, 
    A new Steinway D.  Going over the action, I notice a knocking sound when 
the pedal is used in rapid repetition.  I guess people most often call it 
"fluttering the pedal", (which calls to mind a goodle Southern boy trying to 
impress the flower of the Confederacy).  This noise was the result of a 
factory defect, and I fixed it with a screwdriver and  my cordless drill with 
a #9 bit.  
  It was not in the trapwork. It was not in the underlevers.  I didn't touch 
the tray. 
Regards, 
Ed Foote 

(oohh, I hope it takes everybody a whole long time, but this is a fast 
crew.....)