Narrative:

We were cleared from over the hadok intersection to iad via north american route 240. Our original filed route was north american 244. Somehow, both pilots became convinced that they were reading 240 in their flight manuals. Route 244 ended up in the computer. The solution is when checking rtes to work independently. Each pilot should check the route alone, thus avoiding the human tendency to talk the other guy into something.

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Original NASA ASRS Text

Title: WDB FLT CREW PROGRAMMED WRONG NORTH AMERICAN ROUTE. HEADING DEVIATION.

Narrative: WE WERE CLRED FROM OVER THE HADOK INTXN TO IAD VIA N AMERICAN RTE 240. OUR ORIGINAL FILED RTE WAS NORTH AMERICAN 244. SOMEHOW, BOTH PLTS BECAME CONVINCED THAT THEY WERE READING 240 IN THEIR FLT MANUALS. RTE 244 ENDED UP IN THE COMPUTER. THE SOLUTION IS WHEN CHKING RTES TO WORK INDEPENDENTLY. EACH PLT SHOULD CHK THE RTE ALONE, THUS AVOIDING THE HUMAN TENDENCY TO TALK THE OTHER GUY INTO SOMETHING.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.