UPDATE Mon 20th, 2023 from original article of Sept 11th, 2022. NYP: The captain of United Airlines flight #23 scheduled to take off the morning of Sept. 11, 2001, is convinced his plane was intended to be part of the coordinated terrorist attack. “There is a good chance that somebody was plotting to try to use our airplane as a weapon of mass destruction,” pilot Tom Mannello says in “TMZ Investigates: 9/11: The Fifth Plane,” premiering Monday at 9 p.m. ET on Fox . TMZ said it spent six months investigating the “suspicious and alarming activities” aboard Flight 23, a Boeing 767 that was due to leave JFK Airport for LA at 9 a.m.  and more than 50,000 gallons of jet fuel. In the hour-long special, flight attendants aboard the plane that day share their suspicions about four people in first class — two men, a child and a person who was dressed in a hijab , with the crew believing it was a man pretending to be a woman — and a man profusely sweating in business class. They all fle...