Skylab 3 crewmen practice in the MDA

S73-31322 (30 June 1973) --- The three prime crewmen of the Skylab 3 mission practice procedures which will be used during the extravehicular activity (EVA) portion of the scheduled Skylab rate gyro six-pac installation. They are scientist-astronaut Owen K. Garriott (center), astronaut Alan L. Bean (center background) and astronaut Jack R. Lousma (right). Garriott is working with a mock-up of a trunion plug plate which is on the space station's deployment assembly. This picture was taken during Skylab 3 prelaunch training at Johnson Space Center. In the left foreground with back to camera is astronaut Russell L. Schweickart, who is assisting with the Skylab 3 training. Another training officer is in the left background. Photo credit: NASA