Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Mohamed Atta, jagoran hare-haren, da kuma abokin aikinsa, Abdulaziz al-Omari, ya isa Portland International Jetport a 05:41 Eastern Daylight Time a ranar 11 ga Satumba, 2001. Sun hau jirgin Colgan Air Flight 5930, wanda aka tsara ya tashi da karfe 06:00 daga Portland, Maine, kuma ya tashi zuwa Boston. Dukkanin masu satar jirgin suna da tikiti na aji na farko tare da haɗin jirgin zuwa Los Angeles; Atta ya duba a cikin jaka biyu, Omari babu. Lokacin da suka shiga, Tsarin Binciken Fasinjoji na Kwamfuta (CAPPS) ya zaɓi Atta don ƙarin binciken kaya, amma ya hau ba tare da wata matsala ba. Jirgin daga Portland ya tashi a kan lokaci kuma ya isa Boston a 06:45. Sauran masu satar jirgin uku, Waleed al-Shehri, Wail al-Shehri, da Satam al-Suqami, sun isa Filin jirgin saman Logan da karfe 06:45, bayan sun bar motar haya a filin ajiye motoci na filin jirgin sama. A 06:52, Marwan al-Shehhi, matukin jirgi mai satar jirgin saman United Airlines Flight 175, ya yi kira daga wayar salula a Filin jirgin saman Logan zuwa wayar salula ta Atta.Tun da ba a ba su izinin shiga jirgi ba don Flight 11 a Portland, Atta da Omari sun shiga kuma sun wuce tsaro a Boston. A cikin hanzarin shiga bayan jirgin daga Portland, jami'an kamfanin jirgin sama ba su ɗora jakar Atta a kan Flight 11 ba. Suqami, Wail al-Shehri, da Waleed al-Shehri suma sun shiga jirgi a Boston. Wail al-Shehri da Suqami kowannensu ya duba jaka daya; Waleed al-Shehri bai duba jaka ba. CAPPS ta zaɓi duka ukun don bincika kayan daki. Tunda binciken CAPPS ya kasance ne kawai don kaya, masu satar jirgin uku ba su sami ƙarin bincike ba a wurin binciken tsaro na fasinjoji.  Tambaya: Wanene bai duba ko ɗaya daga cikin jakunkunan ba?
Waleed al-Shehri