The United Airlines Flight 175 aircraft was a Boeing 767-222/ER built in 1983, registration number N612UA, with capacity of 168 passengers. On September 11, 2001, the flight carried only 56 passengers and 9 crew members, which represented a 33 percent load factor — well below the average load factor of 49 percent in the three months preceding September 11. The nine crew members included pilot Victor Saracini, First Officer Michael Horrocks, and flight attendants Robert Fangman, Amy Jarret, Amy King, Kathryn Laborie, Alfred Marchand, Michael Tarrou, and Alicia Titus.

The aircraft crashed into the South Tower of the World Trade Center at 09:03 local time. (less info)