First drop.

Өз DRAINS AVIONICS BAYS COOLING FLASH EVAPORATOR FROM BOTH SIDES AIR REVITALIZATION SYSTEM .............. 4-21 ACTIVE THERMAL CONTROL SYSTEM. ....... 4-21 WATER AND WASTE MANAGEMENT 5Ү5ЗТЕМ................................. 4-23 Water бцрріу............................. 4-23 Waste Сойһесіоп.......................... 4-23 FIRE DETECTION AND SUPPRESSION SYSTEM The Orbiter landing system remains essentially dormant. A landing gear retracted. The Orbiter thermal protection system (TPS) maintains the primary purpose.