A preconditioned air system for cooling an interior cabin space of a parked aircraft includes a thermal energy storage unit, which contains a thermal energy storage medium for storing cooling capacity. The method and system utilize a centralized database of subscriber information and a service node to make multiple outbound calls from the service node to multiple telephone lines assigned to a subscriber. The V-shaped opening decreases in width from the forward end of the blades to the rearward end of the blades. The entry includes blocking criteria. The rotating knob is mounted rotatably in the mounting hole in the waste case and has at least one engaging segment selectively engaging the positioning segments of the waste case. The heat sink device also includes a moving device operable to move one of the anvil and the finger member relative to the other to change the pressing force generated by the compressible member.