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August 19, 2011
Astronauts Heidemarie M. Stefanyshyn-Piper (right), Joseph R. Tanner (background), Daniel C. Burbank, and Steven G. MacLean representing the Canadian Space Agency, all STS-115 mission specialists, participate in an extravehicular activity (EVA) drive lock assembly (DLA) familiarization and solar array e-wing training session in the Space Vehicle Mockup Facility at Johnson Space Center. EVA instructors John M. Haensly (left standing) and John V. Ray (background) assisted the crewmembers.