Should be noted that FlexJet 420 was a witness on the Boston Center Sector 46 frequency when Mohammad Atta made those threatening transmissions that United 175 also heard. After this plane was sent to first Boston Sector 20 that most south-westbound departures use (frequency 125.57) then to ZNY/New York ARTCC Sector 42 (127.17) which sidebar/should be noted because the plane left the frequency shortly after United 175 checked in and reported the hijacker’s threats from earlier but also just in time to miss the hijacking of flight 175 on the frequency but just in time after being sent to this frequency Sector 10 (133.47) then to Indianapolis ARTCC (120.75) to hear the hijacking incident with American 77. Very interesting experience for those pilots. The same irony will happen to other 9/11 non hijacked departures such as Delta 1989 and Delta 9930 out of Boston; Continental 132 and United 1523 both out of Newark and LaGuardia respectively; As well as Delta 2315 out of Hartford CT
@911atctransmissionsvideos4: It’s very interesting that you say that, because there was also another flight on the 127.82 frequency with United 175 and Flex Jet 420, Delta 351. Both 420 and 351 definitely would have heard those transmissions from Atta as well, yet as far as we know based on the recordings, unlike the United 175 pilots, neither plane reported to ATC about hearing said transmissions. Also, other planes such as US AIR 583 and Delta 9930 spotted American 11 as well.
![ATC RADAR | [ ZLA ] | Los Angeles Center (ZLA30 SECTOR)](http://i.ytimg.com/vi/M6Exb4gwvB4/mqdefault.jpg)
Should be noted that FlexJet 420 was a witness on the Boston Center Sector 46 frequency when Mohammad Atta made those threatening transmissions that United 175 also heard. After this plane was sent to first Boston Sector 20 that most south-westbound departures use (frequency 125.57) then to ZNY/New York ARTCC Sector 42 (127.17) which sidebar/should be noted because the plane left the frequency shortly after United 175 checked in and reported the hijacker’s threats from earlier but also just in time to miss the hijacking of flight 175 on the frequency but just in time after being sent to this frequency Sector 10 (133.47) then to Indianapolis ARTCC (120.75) to hear the hijacking incident with American 77. Very interesting experience for those pilots. The same irony will happen to other 9/11 non hijacked departures such as Delta 1989 and Delta 9930 out of Boston; Continental 132 and United 1523 both out of Newark and LaGuardia respectively; As well as Delta 2315 out of Hartford CT
@911atctransmissionsvideos4: It’s very interesting that you say that, because there was also another flight on the 127.82 frequency with United 175 and Flex Jet 420, Delta 351. Both 420 and 351 definitely would have heard those transmissions from Atta as well, yet as far as we know based on the recordings, unlike the United 175 pilots, neither plane reported to ATC about hearing said transmissions. Also, other planes such as US AIR 583 and Delta 9930 spotted American 11 as well.
Ty for sharing!