yee@trident.arc.nasa.gov (Peter E. Yee) (04/19/89)
KSC SPACE SHUTTLE PROCESSING REPORT - TUESDAY, APRIL 18, 1989 STS-30 - ATLANTIS (0V 104) - PAD 39-B The helium signature test of the main propulsion system is underway and will continue through tonight. This test will indicate if there are any leaks in the system. After the test, workers will finish closing out the orbiter's aft compartment. The space suits are being installed in the airlock today. There is no space walk planned for this mission, however, the suits are always flown in case one should become necessary. Yesterday, 18 flight batteries were installed in the Inertial Upper Stage and tomorrow a simulated payload launch countdown will be conducted. Launch of mission STS-30 is scheduled for April 28 at 2:24 p.m. (EDT) with a window of 23 minutes. The countdown is scheduled to begin at 8 a.m. Tuesday, April 25 and the five- member flight crew will arrive that afternoon. STS-28 - COLUMBIA (OV 102) - OPF BAY 1 Orbiter systems testing is continuing this week including checkout of the Ku-band antenna, main propulsion system testing, water spray boilers, air revitalization system and waste containment system. Testing of the power reactant storage and distribution system has been completed. Workers are installing the gaseous oxygen flow control valves and checking out the television system this week. Thermal protection system operations are continuing. Work is underway to prepare the two orbital maneuvering system pods for installation on the orbiter. STS-33 DISCOVERY (OV 103) - OPF BAY 2 Structural post-flight inspections and window polishing are continuing this week. A systems test of the power reactant storage and distribution system has been completed. Other activities planned include measuring the tip loads for the external tank 17-inch disconnect valve, draining the auxiliary power units' catch bottles, tile waterproofing and inspection of heat shields. STS-28 SOLID ROCKET BOOSTERS - VAB/RPSF The right aft booster on Friday was stacked on the launch platform and technicians are calibrating instrumentation. The left forward segment is in the VAB transfer aisle and is scheduled to be lifted today for inspections of its tang end. Joint closeouts are active on the left booster. At the RPSF, technicians are preparing other STS-30 segments for stacking in the RPSF.