A fan blade for a gas turbine engine has an aerofoil part and a root part. The player comprises a reading unit, a central processing unit, a memory unit and an output unit. The sleeve is arranged radially outside of the insert portion and the soft pipe, and presses the soft pipe toward the insert portion. The rigid member holds the electrode at a fixed angle from the central axis of the handle portion. Based upon the interrogation results, the computer or computers responsible for controlling access to a resource will control the remote computer’s access to the requested resource.