Narrative:

On descent into msp on bunker 6 arrival we were given a clearance to cross cedar intersection at or below 15000' MSL to maintain 10000' MSL. At time we were southwest of rwf. (Cedar is 26 DME southwest msp VORTAC.) I was the PNF, so I put the clearance into the FMS DCU. The captain had programmed the arrival for 11R but upon getting ATIS, the approachs were to 29, so he started changing the arrival. He also was on V/south for descent, instead of VNAV. After reprogramming the cedar crossing ht was erased and never re-entered. I was also spending too much time in other duties like calling gate radio and watching captain descent check and etc to notice flight path enough. At one point I noticed a recalculation of 14400' at cedar and assumed all was well. Somehow I had mistaken caase (msp 8 DME) for cedar and thought we still had plenty of distance to descend. Center called as we passed cedar, reminded us of the clearance and asked our altitude. We were at FL230 instead of below 15000'. After a short vector msp center said, 'msp approach will accept you, call them...' in summary, we missed crossing restriction due to PF doing PNF duties, ie, extensive DCU reprogramming and not monitoring flight path. I also didn't monitor flight path close enough while involved in other duties. We received the clearance from msp center, but failed to comply. Only one person should be doing heads down FMS cde work, while the other monitors flight path. Very busy time in 2 person cockpit requires extreme discipline.

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Original NASA ASRS Text

Title: ACR WDB ALT DEVIATION UNDERSHOT CLRNC ALT CROSSING RESTRICTION NOT MET.

Narrative: ON DSCNT INTO MSP ON BUNKER 6 ARR WE WERE GIVEN A CLRNC TO CROSS CEDAR INTXN AT OR BELOW 15000' MSL TO MAINTAIN 10000' MSL. AT TIME WE WERE SW OF RWF. (CEDAR IS 26 DME SW MSP VORTAC.) I WAS THE PNF, SO I PUT THE CLRNC INTO THE FMS DCU. THE CAPT HAD PROGRAMMED THE ARR FOR 11R BUT UPON GETTING ATIS, THE APCHS WERE TO 29, SO HE STARTED CHANGING THE ARR. HE ALSO WAS ON V/S FOR DSCNT, INSTEAD OF VNAV. AFTER REPROGRAMMING THE CEDAR XING HT WAS ERASED AND NEVER RE-ENTERED. I WAS ALSO SPENDING TOO MUCH TIME IN OTHER DUTIES LIKE CALLING GATE RADIO AND WATCHING CAPT DSCNT CHK AND ETC TO NOTICE FLT PATH ENOUGH. AT ONE POINT I NOTICED A RECALCULATION OF 14400' AT CEDAR AND ASSUMED ALL WAS WELL. SOMEHOW I HAD MISTAKEN CAASE (MSP 8 DME) FOR CEDAR AND THOUGHT WE STILL HAD PLENTY OF DISTANCE TO DSND. CENTER CALLED AS WE PASSED CEDAR, REMINDED US OF THE CLRNC AND ASKED OUR ALT. WE WERE AT FL230 INSTEAD OF BELOW 15000'. AFTER A SHORT VECTOR MSP CENTER SAID, 'MSP APCH WILL ACCEPT YOU, CALL THEM...' IN SUMMARY, WE MISSED XING RESTRICTION DUE TO PF DOING PNF DUTIES, IE, EXTENSIVE DCU REPROGRAMMING AND NOT MONITORING FLT PATH. I ALSO DIDN'T MONITOR FLT PATH CLOSE ENOUGH WHILE INVOLVED IN OTHER DUTIES. WE RECEIVED THE CLRNC FROM MSP CENTER, BUT FAILED TO COMPLY. ONLY ONE PERSON SHOULD BE DOING HEADS DOWN FMS CDE WORK, WHILE THE OTHER MONITORS FLT PATH. VERY BUSY TIME IN 2 PERSON COCKPIT REQUIRES EXTREME DISCIPLINE.

Data retrieved from NASA's ASRS site as of August 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.