Paragraph: (Sept11-reports/oanc-chapter-1-26.txt)
Sent 1: Right after the Pentagon was hit, NEADS learned of another possible hijacked aircraft.
Sent 2: It was an aircraft that in fact had not been hijacked at all.
Sent 3: After the second World Trade Center crash, Boston Center managers recognized that both aircraft were transcontinental 767 jetliners that had departed Logan Airport.
Sent 4: Remembering the "we have some planes" remark, Boston Center guessed that Delta 1989 might also be hijacked.
Sent 5: Boston Center called NEADS at 9:41 and identified Delta 1989, a 767 jet that had left Logan Airport for Las Vegas, as a possible hijack.
Sent 6: NEADS warned the FAA's Cleveland Center to watch Delta 1989.
Sent 7: The Command Center and FAA headquarters watched it too.
Sent 8: During the course of the morning, there were multiple erroneous reports of hijacked aircraft.
Sent 9: The report of American 11 heading south was the first; Delta 1989 was the second.
Sent 10: NEADS never lost track of Delta 1989, and even ordered fighter aircraft from Ohio and Michigan to intercept it.
Sent 11: The flight never turned off its transponder.
Sent 12: NEADS soon learned that the aircraft was not hijacked, and tracked Delta 1989 as it reversed course over Toledo, headed east, and landed in Cleveland.
Sent 13: But another aircraft was heading toward Washington, an aircraft about which NORAD had heard nothing: United 93.
Sent 14: United Airlines Flight 93 FAA Awareness.
Sent 15: At 9:27, after having been in the air for 45 minutes, United 93 acknowledged a transmission from the Cleveland Center controller.
Sent 16: This was the last normal contact the FAA had with the flight.
Sent 17: Less than a minute later, the Cleveland controller and the pilots of aircraft in the vicinity heard "a radio transmission of unintelligible sounds of possible screaming or a struggle from an unknown origin."
Sent 18: The controller responded, seconds later: "Somebody call Cleveland?"This was followed by a second radio transmission, with sounds of screaming.

Question: Which flight was reported as hijacked although it never turned off its transponder? (true/0)

Question: Which flight never turned off its transponder? (true/1)

Question: At what time did the last normal contact between United 93 and the FAA? (false/2)

Question: What was the first flight that was erroneously reported as hijacked? (true/3)

Question: Two radio transmissions that included (possible) screaming came from which aircraft? (true/4)

Question: The last normal contact the FAA had with flight United 93 was when it acknowledged a transmission from whom? (true/5)

Pentagon
FAA
Boston Center
The Cleveland Center controller
At 10:12am from the pilot
United Airlines
At 9:27, after having been in the air for 45 minutes, United 93 acknowledged a transmission from the Cleveland Center controller

Question: At what time was the FAA's last normal communication with United Airlines flight 93? (true/6)

Question: Which flight did both the command center and FAA headquarters watch, thanks to a call from Boston Center to NEADS? (true/7)

Question: Which flight did NEADS think was hijacked right after the Pentagon was hit? (false/8)

Question: How did the Cleveland controller respond to a transmission that seemed to signify trouble? (false/9)

Question: Did Boston Center call NEADS regarding Delta 1989 before or after problems were identified on United 93? (true/10)

9:41 AM
9:27 AM
Before
After

Question: Which air traffic center communicated with United 93? (true/11)

Question: What entity did NEADS warn in response to a 767 jet that had left Logan Airport for Las Vegas? (false/12)

Question: What was the first flight erroneously reported as a hijack? (false/13)

Question: At what time Boston Center called the NEADS (true/14)

Question: Fighter aircraft from Ohio and Michigan intercepted a plane that took off from which airport? (false/15)

Question: Which buildings that were hit by aircraft? (true/16)

Question: What type of plane was the FAA's Cleveland Center asked to watch? (false/17)