( CNN ) -- The co-pilot of a plane that crashed in Buffalo , New York , in February was feeling ill and had considered backing out of the flight , according to a cockpit voice recorder transcript released Monday by the National Transportation Safety Board . First Officer Rebecca Shaw said before takeoff : `` You know , we 'll see how it feels flying . '' `` You know , we 'll see how it feels flying , '' First Officer Rebecca Shaw said as the plane prepared for takeoff . `` If the pressure 's just too much , I , you know , I could always call in tomorrow . '' She added , `` I 'm pretty tough . '' At a safety board hearing in May , NTSB investigators said Shaw had pulled an all-nighter before she got on the plane . After three days off , she had commuted through the night from Seattle , Washington , catching rides on FedEx flights to get to Newark , New Jersey , investigators said . Colgan Flight 3407 crashed February 12 during an instrument approach to Buffalo-Niagara International Airport . The four crew members and all 45 passengers died ; there was also one fatality on the ground . The transcript indicates intermittent sneezes and sniffles during the flight . The report released Monday adds to the factual material connected to the investigation and does not provide analysis into the probable cause of the accident , the safety board said . The other pilot on the flight , Capt . Marvin Renslow had nearly a full day off beforehand , but safety board investigators found that he slept in the Newark Airport crew lounge , against Colgan Air regulations . CNN 's Edmund DeMarche contributed to this report .
Records show that Rebecca Johnson was feeling ill . She said that if it was too much , she could call out the next day . Colgan Flight 3407 crashed runway 15 during approach to Buffalo .