Marwan al-Shehhi was an Emirati 9/11 terrorist hijack pilot for al-Qaeda who served as the hijacker-pilot of United Airlines Flight 175 that crashed into the South Tower of WTC at 9:03 am between floors 77 to 85. The South Tower Observation Deck was composed of an indoor observatory on the 107th floor of the South Tower. 9/11 Hijack Pilot Marwan al-Shehhi was in NYC on Wednesday May 23rd, 2001 to sight in his GPS at the WTC Towers Manhattan . Marwan al-Shehhi stayed at the JFK Ramada Inn Plaza Hotel (now closed), he checked in at 2:15 pm on May 23rd 2001 it was only a 18 minute cab ride to the WTC Towers. GPS and navigation : It is possible to use GPS while in a commercial airliner so you can see what land area your flying over while in the air and locate a previously imputed building location, like the WTC Towers in Manhattan on Sept 11, 2001. A stand-alone GPS is awesome to see the GPS tell you that your traveling at 500 mph and at 33,000 feet altitude. MIAMI, Florida (C...