Narrative:

While descending on the SKETR3 arrival; we got a last minute runway change from runway 30L to runway 35. The change was noted and put in to the FMC; however a portion of the arrival past shonn dropped out of the legs page. We did not notice this deletion at first. The procedure required a 120 degree heading after passing the last point on the arrival. Because that point was no longer displayed; we turned to the 120 degree heading after shonn instead of monky. We noticed the problem while in the turn and started to query ATC; but we received a heading before we could acknowledge our mistake. The turn was cleared as we saw no conflicting traffic. Once back on course; the approach and landing were normal.

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Original NASA ASRS Text

Title: ATC ISSUED A RWY CHANGE FOR A B757-200 INBOUND TO MSP. THE FLT CREW ENTERED THE NEW RWY INTO THE FMC; BUT THIS RESULTED IN THE LATTER PORTION OF THE ARRIVAL DISAPPEARING.

Narrative: WHILE DESCENDING ON THE SKETR3 ARRIVAL; WE GOT A LAST MINUTE RWY CHANGE FROM RWY 30L TO RWY 35. THE CHANGE WAS NOTED AND PUT IN TO THE FMC; HOWEVER A PORTION OF THE ARRIVAL PAST SHONN DROPPED OUT OF THE LEGS PAGE. WE DID NOT NOTICE THIS DELETION AT FIRST. THE PROCEDURE REQUIRED A 120 DEGREE HEADING AFTER PASSING THE LAST POINT ON THE ARRIVAL. BECAUSE THAT POINT WAS NO LONGER DISPLAYED; WE TURNED TO THE 120 DEGREE HEADING AFTER SHONN INSTEAD OF MONKY. WE NOTICED THE PROBLEM WHILE IN THE TURN AND STARTED TO QUERY ATC; BUT WE RECEIVED A HEADING BEFORE WE COULD ACKNOWLEDGE OUR MISTAKE. THE TURN WAS CLEARED AS WE SAW NO CONFLICTING TRAFFIC. ONCE BACK ON COURSE; THE APPROACH AND LANDING WERE NORMAL.

Data retrieved from NASA's ASRS site as of May 2009 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.