Narrative:

Departing slc, we were assigned a heading during climb phase to join the mlf.2 departure. We thought the FMS was programmed correctly, but apparently not. During a busy time such as climb out, we flew through our course. I'm not sure exactly how many mi, but I do know we did not fly through any restr areas, or get in the way of any aircraft. TCASII was clear of aircraft in 40 NM range. It took only a minor correction, about a 30 degree right turn to intercept. Interception of route was very quick. The problem, I believe, was a result of workload. During the preparation prior to pushback, fueling was late, paperwork all around coming at us, and our flight plan is always entered and doublechked. However, a pre departure clearance a departure is given and it also listed flight plan route. With everything happening at once and about 3-4 FMS procedures still needed to be completed. After fueling I believe the departure was entered but not correctly. Maybe a 'transition' was not picked. Bottom line is: high workload with FMS at crucial times -- sometimes leads to mistakes. This is what I believe -- not knowing the problem for sure.

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Original NASA ASRS Text

Title: A B757-200 FLT DOES NOT FOLLOW THE MLF 2 DEP PROC OUT OF SLC, UT.

Narrative: DEPARTING SLC, WE WERE ASSIGNED A HDG DURING CLB PHASE TO JOIN THE MLF.2 DEP. WE THOUGHT THE FMS WAS PROGRAMMED CORRECTLY, BUT APPARENTLY NOT. DURING A BUSY TIME SUCH AS CLBOUT, WE FLEW THROUGH OUR COURSE. I'M NOT SURE EXACTLY HOW MANY MI, BUT I DO KNOW WE DID NOT FLY THROUGH ANY RESTR AREAS, OR GET IN THE WAY OF ANY ACFT. TCASII WAS CLR OF ACFT IN 40 NM RANGE. IT TOOK ONLY A MINOR CORRECTION, ABOUT A 30 DEG R TURN TO INTERCEPT. INTERCEPTION OF RTE WAS VERY QUICK. THE PROB, I BELIEVE, WAS A RESULT OF WORKLOAD. DURING THE PREPARATION PRIOR TO PUSHBACK, FUELING WAS LATE, PAPERWORK ALL AROUND COMING AT US, AND OUR FLT PLAN IS ALWAYS ENTERED AND DOUBLECHKED. HOWEVER, A PDC A DEP IS GIVEN AND IT ALSO LISTED FLT PLAN RTE. WITH EVERYTHING HAPPENING AT ONCE AND ABOUT 3-4 FMS PROCS STILL NEEDED TO BE COMPLETED. AFTER FUELING I BELIEVE THE DEP WAS ENTERED BUT NOT CORRECTLY. MAYBE A 'TRANSITION' WAS NOT PICKED. BOTTOM LINE IS: HIGH WORKLOAD WITH FMS AT CRUCIAL TIMES -- SOMETIMES LEADS TO MISTAKES. THIS IS WHAT I BELIEVE -- NOT KNOWING THE PROB FOR SURE.

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.