Narrative:

I was flying as first officer on flight from atl to lga. We were on the korey 1 arrival, talking to center. We were given a descent clearance from cruise to a lower altitude. Then our next clearance was to descend 'via' the korey 1. The captain was talking to the jump seater and missed the clearance so I had to repeat it. We had the arrival in the FMS and started the descent to comply with the many stepdown fixes on the arrival, I recommended we use the VNAV function of the autoplt which will comply with the altitude automatically. The captain chose to use vertical speed for the descent profile. ATC gave us a frequency change and in doing so I looked down to change frequencys. As I checked our descent progress, I realized we were going to be too high to meet the 13000 ft restr at xyz intersection. Also, leaving us to be high at the next intersection. I believe situational awareness and the jump seater as a distraction in the cockpit were contributing factors in this situation. Also, that arrival is fairly new and in our company NOTAMS on our flight plan. They give us a heads up about the arrival being very tight in regard to the vertical navigation crossing restrs. We also had a fairly large tailwind.

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Original NASA ASRS Text

Title: ALT XING RESTR NOT MET AT BRAND INTXN BY THE FLC OF AN MD88 IN DSCNT ON THE KORRY 1 ARR PROC TO LGA, NY.

Narrative: I WAS FLYING AS FO ON FLT FROM ATL TO LGA. WE WERE ON THE KOREY 1 ARR, TALKING TO CTR. WE WERE GIVEN A DSCNT CLRNC FROM CRUISE TO A LOWER ALT. THEN OUR NEXT CLRNC WAS TO DSND 'VIA' THE KOREY 1. THE CAPT WAS TALKING TO THE JUMP SEATER AND MISSED THE CLRNC SO I HAD TO REPEAT IT. WE HAD THE ARR IN THE FMS AND STARTED THE DSCNT TO COMPLY WITH THE MANY STEPDOWN FIXES ON THE ARR, I RECOMMENDED WE USE THE VNAV FUNCTION OF THE AUTOPLT WHICH WILL COMPLY WITH THE ALT AUTOMATICALLY. THE CAPT CHOSE TO USE VERT SPD FOR THE DSCNT PROFILE. ATC GAVE US A FREQ CHANGE AND IN DOING SO I LOOKED DOWN TO CHANGE FREQS. AS I CHKED OUR DSCNT PROGRESS, I REALIZED WE WERE GOING TO BE TOO HIGH TO MEET THE 13000 FT RESTR AT XYZ INTXN. ALSO, LEAVING US TO BE HIGH AT THE NEXT INTXN. I BELIEVE SITUATIONAL AWARENESS AND THE JUMP SEATER AS A DISTR IN THE COCKPIT WERE CONTRIBUTING FACTORS IN THIS SIT. ALSO, THAT ARR IS FAIRLY NEW AND IN OUR COMPANY NOTAMS ON OUR FLT PLAN. THEY GIVE US A HEADS UP ABOUT THE ARR BEING VERY TIGHT IN REGARD TO THE VERT NAV XING RESTRS. WE ALSO HAD A FAIRLY LARGE TAILWIND.

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.