Narrative:

Clrncs to FL270, FL240, FL200 then cross 10 mi west phk at 10000 ft. Autoplt engaged with FMS. Crossing restr entered, VNAV engaged and annunciated. No top of descent ever showed -- either on CRT or in cruise or descent page on CDU/FMS. Began forced descent using autoplt via FMS descend now mode. Trend line showed on schedule to make crossing. ZMA gave restr a little late, between llake and chaos intxns. Center asked if we were going to make crossing. Instinctively I said yes, then realized distance to go was very short and readvised ZMA. At that point I clicked the autoplt off. Immediately the trend line was off the scale. Pulling the throttle to idle and deploying the speed brakes was the only option. I confess, I relied too much on the FMS and did not mentally back it up (I will from now on) to assure making the restr. Center did issue the crossing late, but had I caught it at that time, I might have made it, though still deploying speed brakes crossed the waypoint 4000 ft high. ATC didn't comment and seemed to be satisfied by our rate of descent, after we informed him we weren't going to make the restr. Supplemental information from acn 470856: meanwhile, I (the first officer) was picking up ATIS on communication #2. I notified the captain I was off of communication #1 (ATC). It took a couple of times to get ATIS due to picking it up 1/2 way and being there were numerous NOTAMS. The FMS programming part and the late descent and no printed ATIS all added up to a very busy time. If I had printed ATIS I would not have to listen 2 1/2 times to ATIS in a busy situation, which would allow me more time to doublechk the PF's programming.

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Original NASA ASRS Text

Title: ACR CREW MISSES XING RESTR BY DEPENDING ON FMS TO FIGURE OUT THE DSCNT.

Narrative: CLRNCS TO FL270, FL240, FL200 THEN CROSS 10 MI W PHK AT 10000 FT. AUTOPLT ENGAGED WITH FMS. XING RESTR ENTERED, VNAV ENGAGED AND ANNUNCIATED. NO TOP OF DSCNT EVER SHOWED -- EITHER ON CRT OR IN CRUISE OR DSCNT PAGE ON CDU/FMS. BEGAN FORCED DSCNT USING AUTOPLT VIA FMS DSND NOW MODE. TREND LINE SHOWED ON SCHEDULE TO MAKE XING. ZMA GAVE RESTR A LITTLE LATE, BTWN LLAKE AND CHAOS INTXNS. CTR ASKED IF WE WERE GOING TO MAKE XING. INSTINCTIVELY I SAID YES, THEN REALIZED DISTANCE TO GO WAS VERY SHORT AND READVISED ZMA. AT THAT POINT I CLICKED THE AUTOPLT OFF. IMMEDIATELY THE TREND LINE WAS OFF THE SCALE. PULLING THE THROTTLE TO IDLE AND DEPLOYING THE SPD BRAKES WAS THE ONLY OPTION. I CONFESS, I RELIED TOO MUCH ON THE FMS AND DID NOT MENTALLY BACK IT UP (I WILL FROM NOW ON) TO ASSURE MAKING THE RESTR. CTR DID ISSUE THE XING LATE, BUT HAD I CAUGHT IT AT THAT TIME, I MIGHT HAVE MADE IT, THOUGH STILL DEPLOYING SPD BRAKES CROSSED THE WAYPOINT 4000 FT HIGH. ATC DIDN'T COMMENT AND SEEMED TO BE SATISFIED BY OUR RATE OF DSCNT, AFTER WE INFORMED HIM WE WEREN'T GOING TO MAKE THE RESTR. SUPPLEMENTAL INFO FROM ACN 470856: MEANWHILE, I (THE FO) WAS PICKING UP ATIS ON COM #2. I NOTIFIED THE CAPT I WAS OFF OF COM #1 (ATC). IT TOOK A COUPLE OF TIMES TO GET ATIS DUE TO PICKING IT UP 1/2 WAY AND BEING THERE WERE NUMEROUS NOTAMS. THE FMS PROGRAMMING PART AND THE LATE DSCNT AND NO PRINTED ATIS ALL ADDED UP TO A VERY BUSY TIME. IF I HAD PRINTED ATIS I WOULD NOT HAVE TO LISTEN 2 1/2 TIMES TO ATIS IN A BUSY SIT, WHICH WOULD ALLOW ME MORE TIME TO DOUBLECHK THE PF'S PROGRAMMING.

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.