yee@trident.arc.nasa.gov (Peter E. Yee) (04/26/91)
KSC SHUTTLE STATUS REPORT - WEDNESDAY, APRil 24, 1991 - 11:30 AM
STS-39/DoD - DISCOVERY (OV 103) - PAD 39-A
LAUNCH - NO EARLIER THAN APRIL 28
WORK IN PROGRESS:
- Replacement of a failed high pressure oxidizer turbopump pres-
sure transducer and its electrical harness for the no. 3 main en-
gine.
- Preparations for payload servicing operations.
- Opening payload bay doors.
- Establishing access to the aft compartment.
WORK COMPLETED:
- Boiloff of liquid hydrogen propellant.
- Draining onboard propellants from the fuel cell storage tanks.
WORK SCHEDULED:
- Closing the aft compartment for flight, targeted for tomorrow
afternoon.
- Start of launch countdown tentatively scheduled for tomorrow
morning at 8:45 a.m at the T-43 hour mark.
- Launch no earlier than Sunday, April, 28 pending completion of
planned work.
STS-40/SPACELAB LIFE SCIENCES 1 - COLUMBIA (OV 102) - OPF BAY 1
LAUNCH - MAY
WORK IN PROGRESS:
- Weight and center of gravity determinations.
- Attaching the orbiter to the transporter tonight.
WORK SCHEDULED:
- Tow to the Vehicle Assembly Building targeted for 9 a.m. tomor-
row.
WORK COMPLETED:
- Aft compartment and crew cabin closed out for the transfer.
- Landing gear functional test.
- Main engine rollover preparations.
STS-43 - ATLANTIS (OV 104) - OPF BAY 2
WORK IN PROGRESS:
- Preparations to drain residual hypergolic propellants from the
onboard storage tanks.
- Removal of ferry flight fixtures.
- Inspections of the cabin air recirculation system.
- Removal of heat shields from around the main engines.
- Preparations to remove the no. 3 fuel cell.
- Auxiliary power unit lube oil service.
WORK COMPLETED:
- Preparations to drain the auxiliary power unit catch bottles.
- Carrier panels have been removed from the main engine area.
- Initial engine inspections.
- Tires removed.
WORK SCHEDULED:
- Tests of the orbiter's electrical system.
STS-40 SOLID ROCKET BOOSTERS - VAB
WORK IN PROGRESS:
- Preparations to mate the orbiter to the external tank.
- Routing cables between the tank and boosters and launch plat-
form.
- Closing out the solid rocket booster field joints for flight.