The Vixen incident was caused by the loss of a panel in the Stbd upper wing boom used to store tools, in this case the tools fell out after the panel departed the aircraft along with a roll of Kimwipe which fluttered to the ground gently unwinding! A relacement panel was robbed from a Vixen at Bruntingthorpe to enable the aircraft to fly back to Bournemouth . The Ryan incident occured right in front of us as we taxied in at the end of displaying the Canberra, not what you like to see at a display.