with Sergei Avdeyev. In a successful 5 hour and 11 minute EVA, they installed four elements on the ESEF: two exposure cassettes, a spacecraft environmental monitoring package and a control electronics box on the forward section of the Spektr module. One of the cassettes would be opened remotely from within the station to sample the Draconids meteor stream when the Earth passed through the tail of the Giacobini Zinner comet. Coolant loop leak discovered and repaired On November 1, a coolant line to the core module air regeneration system was found to be leaking. Approximately 1.8L of an ethylene glycol mixture had leaked inside the Mir module. Shutting down the coolant loop required shutting down the primary carbon dioxide removal system in Kvant and the oxygen replenishment system. While they were off, the backup air scrubber using lithium hydroxide canisters similar to those used on the Space Shuttle was used to scrub the carbon dioxide. The leak was found a few days later and repaired with a putty-like substance. Dutch Biokin Air Scrubber Tested Two Dutch companies sponsored by the ESA and the Dutch National Institute for Aerospace Programs developed a 500g system to use microbes to filter air by converting airborne contaminants into harmless compounds. The system was activated by the crew on November 9, run for a week and then put in a small freezer for return to Earth on STS-74. Shuttle Docking Module Connection The Docking Module was designed and built in 1994 and 1995 in Russia by RSC Energia for the RSA. The 4090 kg, 4.7m long, 2.2m diameter module was delivered to Kennedy Space Center on June 7, 1995, so that the Space Shuttle Atlantis could bring it to Mir on STS-74. The module simplified the Space Shuttle Orbiter dockings with Mir by eliminating the need to move Kristall to the -X port on Mir each time the Space Shuttle visited. The length also provided more clearance between the Orbiter and the Mir solar arrays. The module had identical Androgeynous Peripheral Assembly Systems (APASs) on each end. APAS-1 attached to Kristall, APAS-2 attached to the Shuttle ODS. Visiting crews would then enter the pressurized interior through the APAS-2 hatch and then access Kristall through the APAS-2 hatch. Atlantis launched from Kennedy Space Center on November 12 at 7:30 am EST on the STS-74 mission. For the first two days of the flight, Kenneth Cameron, Atlantis