The Shuttle Interface Test is slated for Wednesday evening. Atlantis is scheduled to roll out to the launch pad at 2 a.m. next Monday. After evaluating Columbia's fuel cell No. 1, engineers determined that the fuel cell is good and will fly on STS-87. Fuel cell No. 3, however, may need a cell performance monitor replaced before launch. Functional testing of the Shuttle's aft and main propulsion systems continue through this week.
Technicians expect to finish draining the orbiter's oxidizer cross-feed line by next week.
Once that work is complete, they will locate and repair a leak in the same line. The system will reply with a confirmation via e-mail of each subscription.