EURECA communications antennas manually positioned for latching, evaluation of EVA activity tools and techniques

Pressurized Mating Adapter 3 was grappled by the shuttle's robotic arm and installed on the Unity Connecting Module nadir port. The primary and secondary cable bundles were connected between the Pressurized Mating Adapter 3 and the Unity Module. Also, latches were opened on the Z1 Truss

A grapple fixture on the Z1 Truss was removed. The Z1 utility tray was deployed and its umbilical launch restraints released. The Z1 Manual Berthing Mechanism latches was cycled and opened. Wisoff and Lopez-Alegria performed one safety protocol test -- a flight evaluation of SAFER, which means "simplified aid for EVA rescue".