Equipment element with retractable line

A method for installing an equipment element in an aircraft comprising:

• arranging, in a transport position, a line arrangement of the equipment element inside a cavity of the equipment element, the cavity being surrounded by walls of the equipment element, the equipment element including a terminal device secured to one of the walls;
• securing the equipment element to the transportation means;
• withdrawing the line arrangement from the cavity until an end of the line arrangement can be connected with an end of a line with a supply device;
• guiding the line arrangement with a line guide while setting a length of the line arrangement, the line guide comprising an opening in one of the walls, the opening guiding the line arrangement;
• attaching the terminal device of the equipment element by connecting the end of the line arrangement with the end of the line to the supply device;
• and
• shortening the line arrangement to a minimal length by retracting the line arrangement via a line retraction mechanism inside the cavity, the line retraction mechanism being arranged between the line guide and the terminal device.

An aircraft, comprising:

• an equipment element comprising:
• a plurality of walls;
• a cavity surrounded by the plurality of walls;
• a terminal device secured to a wall of the plurality of walls;
• a line arrangement connecting the terminal device with a supply device of the aircraft and arranged inside the cavity of the equipment element in a transport position;
• a line retraction mechanism arranged in the cavity of the equipment element and adapted to set a length of the line arrangement between the equipment element and the supply device;
• and
• a line guide comprising an opening in at least one of the plurality of walls that is adapted to guide the line arrangement while the length of the line arrangement is set,
• wherein the line retraction mechanism is arranged between the line guide and the terminal device.