NASA Photo ID: S92-45750           File Name: 10065430.jpg
  Film Type: 35mm                    Date Taken: 09/21/92
  Title: STS-54 Commander Casper at airlock hatch on CCT middeck during JSC training
  STS-54 Endeavour, Orbiter Vehicle (OV) 105, Commander John H. Casper 
  manipulates the airlock hatch and its equalization valves on the middeck of 
  JSC's Crew Compartment Trainer (CCT).  Casper is rehearsing the sequence of 
  events necessary for extravehicular activity (EVA) egress for the upcoming 
  STS-54 mission.  Visible in the airlock is an extravehicular mobility unit 
  (EMU).  Two of the STS-54 crewmembers will don EMUs and egress through the
  EV  hatch into the payload bay (PLB) after Casper closes the intravehicular
  (IV)  hatch behind them.  The EVA crewmembers will spend four-plus hours on
  a  planned spacewalk to evaluate EVA techniques and gear for the Space
  Station  Freedom (SSF).  The CCT is located in JSC's Mockup and Integration
  Laboratory  (MAIL) Bldg 9NE.           
  Subject terms:
  AIR LOCKS                               
  ASTRONAUT TRAINING                      
  SPACE FLIGHT TRAINING                   
  SPACE SHUTTLES                          

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