yee@trident.arc.nasa.gov (Peter E. Yee) (03/05/91)
KSC SHUTTLE STATUS REPORT - FRIDAY, MAR. 1, 1991 - 9:30 a.m.
STS-39/DoD - DISCOVERY (OV 103) - PAD A
LAUNCH - LATE APRIL, EARLY MAY
WORK IN PROGRESS:
- Preparations for rolling back to the Vehicle Assembly Building
no earlier than 12:01 a.m. March 7.
- Demate the orbiter midbody umbilical unit.
- Payload electrical demates.
WORK SCHEDULED:
- Disconnection of ordnance devices on Monday.
- Transferring the STS-39 Air Force Program 675 payload from
Discovery's payload bay to the Payload Changeout Room on Monday.
- Offloading hypergolic propellants from the orbital maneuvering
system and reaction control system on Tuesday.
CONCERNS:
- Shuttle officials decided yesterday to roll Discovery back for
repairs to the cracked hinges for the external tank umbilical
door drive mechanism. Repairs will be made in the Orbiter
Processing Facility.
STS-37/GAMMA RAY OBSERVATORY - ATLANTIS (OV 104) - OPF BAY 2
LAUNCH - APRIL
WORK IN PROGRESS:
- Preparations for rollover to the VAB on March 6.
- Thermal protection system operations.
- Closeouts of the midbody in preparation for rollover to the
VAB.
- Positive pressure tests of the vehicle.
- Installation of wing struts.
WORK COMPLETED:
- Successful tests of the thruster on the right orbital maneuver-
ing system pod.
- Checks of water spray boiler no. 2.
WORK SCHEDULED:
- Payload bay door closure this weekend.
- Transfer of the vehicle to the Vehicle Assembly Building on
March 6.
STS-40/SPACELAB LIFE SCIENCES 1 - COLUMBIA (OV 102) - OPF BAY 1
LAUNCH - MAY
WORK IN PROGRESS:
- Tests of the power reactant storage and distribution system.
- Offloading residual hypergolic propellant from the orbital
maneuvering system and reaction control system.
- Preparations to deservice freon.
- Preparations to drain the auxiliary power unit catch bottles.
- Checks of the main propulsion system.
- Installation of the environmental control system dump nozzle.
- Replacement of the payload bay door environmental seal.