Line two.

Segments, repainted, and prepared again for flight. STRUCTURES The tank is expendable, most fluid controls and displays found in the atmosphere inside or outside the cabin to AIR REVITALIZATION SYSTEM .............. 4-21 ACTIVE THERMAL CONTROL SYSTEM. ....... 4-21 WATER AND WASTE MANAGEMENT 5Ү5ЗТЕМ................................. 4-23 Water бцрріу.............................