and 8 minutes, but the troubles were not all over: After closing the Kvant 2 EVA hatch, the cosmonauts found a 2 mm gap in the seal through which air was escaping. They had to work with the hatch to get it tightly shut. Progress M-28 Arrives Launched by a Soyuz booster from Baikonur on July 20, Progress M-28 bore 2.4 tons of food and water, fuel and oxidizer, and science equipment including about 335 kg for use during Euromir 95. Two days later, using the Kurs system, Progress M-28 docked at the -X port of the base block. Installation of MIRAS During Third EVA On July 21, the cosmonauts opened the Kvant 2 hatch again and retrieved the cooling umbilical left outside in their last EVA. Using the Strela boom, they made their way to the Spektr module, on which they installed the 220 kg MIRAS spectrometer. This final EVA of Mir 18 lasted 5 hours and 35 minutes. August 1995 - Interior Work With their EVAs completed, the Mir 19 crew turned their attention to experiments in life sciences and astrophysics and smelting experiments in the Gallar furnace. They unloaded the cargo brought by the Progress module and monitored the automatic refueling by Progress of the base block propellant tanks. They also performed station maintenance and repairs, including installation in Kvant 2 of new gyrodynes brought up on Progress. They repaired the seals on other gyrodyne cases with a lute-type sealer called "germetik". September 1995 - Progress M-28 Undocked, Soyuz TM-22 Docked and Soyuz TM-21 Undocked Progress M-28 Undocks Packed with trash and obsolete equipment, Progress M-28 left the -X port on September 4 and splashed down into the Pacific, thus clearing the way for Soyuz TM-22 to dock with the next Mir crew. Mir 20 and Euromir 95 Crew Launched Soyuz TM-22 was launched from Baikonur on September 3 at 8:58 UTC. After two days of autonomous orbital flight, on September 5, the Soyuz spacecraft docked at the -X docking port. Mir 19 Ends Solovyev and Budarin ended their 75-day mission on September 11, departing the station in the Soyuz TM-21 that had brought the Mir 18 crew up on March 16. Their Soyuz made a safe landing in Kazakhstan, 302 km northeast of Arkalyk, "far away from the aiming point." Rescue parties, however, found the crew in excellent condition. Mission parameters Mass: 7150 kg Perigee: 201