yee@trident.arc.nasa.gov (Peter E. Yee) (09/22/90)
KSC SHUTTLE STATUS REPORT - FRIDAY, SEPT. 21, 1990 11:30 AM
STS-41 - DISCOVERY (OV 103) - PAD 39-B
Final securing of the high pressure turbo pump fuel duct on
main engine 2 has been completed and a flight readiness test of
the main engines is underway. Engine valves and acutators are
cycled during this test. A partial helium signature test is set
for tomorrow as part of checks of the new duct.
Flight batteries for the Ulysses Inertial Upper Stage were
installed yesterday. Flight batteries for the Payload Assist
Module-S are being installed today. A routine systems state of
health checks of the Ulysses spacecraft are underway.
As a precautionary measure, leak checks and inspections of
cover seals for the engine pre-valves are planned early tomorrow.
These seals were replaced as required since Discovery's last
flight.
Discovery and the Ulysses spacecraft are being prepared for
an early October launch. The official launch date will be set at
the Flight Readiness Review scheduled to conclude next Tuesday.
STS-35 - COLUMBIA (OV 102) - PAD 39-A
Workers gained access to the aft compartment yesterday and
have begun preliminary inspections. Technicians are continuing to
remove foam from around valves, actuators and areas of the recir-
culation pump package to allow further inspections and tests.
Details and requirements are being identified for a tanking
test. A definite date for the test has not yet been set.
Propellant tanks for the orbital maneuvering system and
reaction control system will be depressurized late tonight.
Preparations to remove an auxiliary power unit are underway. This
unit will reinstalled on Atlantis for the STS-38 mission.
STS-38 - ATLANTIS (OV 104) - OPF BAY 2
Power up testing is continuing today. Moisture checks of
freon cooling loop 2 are planned today. Pressurization and leak
tests are planned on the flash evaporator. Atlantis is being
prepared for rollover to the VAB early next month.