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'''Stairwell A''' was the lone stairway left intact after the ] hit the South Tower of the ] during the ]. It was believed to have remained intact until the South Tower ] at 9:59 am. 14 people were able to escape the floors located at the impact zone (including ] who saw the plane coming at him), and 4 people from the floors above the impact zone. Numerous police hotline operators who received calls from individuals inside the South Tower were not well informed of the situation as it rapidly unfolded in the South Tower. Many operators told callers not to descend the tower on their own, even though it is now believed that Stairwell A was most likely passable at and above the point of impact. <ref>{{Cite book | last = National Commission on Terrorist Attacks | title = The 9/11 Commission Report | publisher = W. W. Norton & Company | date = July 22, 2004 (first edition) | url = http://govinfo.library.unt.edu/911/report/911Report_Ch9.pdf | pages = 294 | isbn = 0-393-32671-3}}</ref> |
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'''Stairwell A''' was the lone stairway left intact after the ] hit the South Tower of the ] during the ]. It was believed to have remained intact until the South Tower ] at 9:59 am. 14 people were able to escape the floors located at the impact zone (including ], who saw the plane coming at him), and 4 people from the floors above the impact zone. Numerous police hotline operators who received calls from individuals inside the South Tower were not well informed of the situation as it rapidly unfolded in the South Tower. Many operators told callers not to descend the tower on their own, even though it is now believed that Stairwell A was most likely passable at and above the point of impact. <ref>{{Cite book | last = National Commission on Terrorist Attacks | title = The 9/11 Commission Report | publisher = W. W. Norton & Company | date = July 22, 2004 (first edition) | url = http://govinfo.library.unt.edu/911/report/911Report_Ch9.pdf | pages = 294 | isbn = 0-393-32671-3}}</ref> |