Narrative:

We were cleared to descend via civet 5 arrival. Around gramm or rustt intersection we were given runway 24R. We were set up for runway 25R. I was the PF. I asked the captain to make the change in the FMS for me. He selected the change. I have had problems in the past with last min changes while on this arrival. Just to ensure that the load changed I asked him to verify that it loaded ok by checking that the camdi intersection was showing in the legs page up-line. To get there; he had to select page two on the legs page. I noticed passing I think it was the rustt intersection and then looked to the legs page to see what altitude was next. Not seeing that the legs page was still in page two I saw an altitude (I think 12000 ft) to be set for the next step-down; which I had him set in. I continued in IAS 250 FPM descent; but subsequently noticed that things weren't adding up and figured out that we went below the civet bracket altitude of between 14000 and 15000 ft. I leveled off immediately and got reoriented to the proper altitude and got back on the profile descent. Approach never said anything; and we did not come close to any other aircraft. The late change; coupled with missing page two being shown on the legs page got me off profile. The captain was heads down; busy doing something when this occurred. I had the chart out; but relied on the legs page. In the future I'll try to have both pilots confirm; as we are supposed to; confirm altitude changes per the profile.

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Original NASA ASRS Text

Title: MD80 CREW MISSES CROSSING RESTR ON CIVET INTO LAX WHILE LOADING RWY CHANGE IN FMS.

Narrative: WE WERE CLRED TO DSND VIA CIVET 5 ARR. AROUND GRAMM OR RUSTT INTXN WE WERE GIVEN RWY 24R. WE WERE SET UP FOR RWY 25R. I WAS THE PF. I ASKED THE CAPT TO MAKE THE CHANGE IN THE FMS FOR ME. HE SELECTED THE CHANGE. I HAVE HAD PROBS IN THE PAST WITH LAST MIN CHANGES WHILE ON THIS ARR. JUST TO ENSURE THAT THE LOAD CHANGED I ASKED HIM TO VERIFY THAT IT LOADED OK BY CHKING THAT THE CAMDI INTXN WAS SHOWING IN THE LEGS PAGE UP-LINE. TO GET THERE; HE HAD TO SELECT PAGE TWO ON THE LEGS PAGE. I NOTICED PASSING I THINK IT WAS THE RUSTT INTXN AND THEN LOOKED TO THE LEGS PAGE TO SEE WHAT ALT WAS NEXT. NOT SEEING THAT THE LEGS PAGE WAS STILL IN PAGE TWO I SAW AN ALT (I THINK 12000 FT) TO BE SET FOR THE NEXT STEP-DOWN; WHICH I HAD HIM SET IN. I CONTINUED IN IAS 250 FPM DSCNT; BUT SUBSEQUENTLY NOTICED THAT THINGS WEREN'T ADDING UP AND FIGURED OUT THAT WE WENT BELOW THE CIVET BRACKET ALT OF BETWEEN 14000 AND 15000 FT. I LEVELED OFF IMMEDIATELY AND GOT REORIENTED TO THE PROPER ALT AND GOT BACK ON THE PROFILE DSCNT. APCH NEVER SAID ANYTHING; AND WE DID NOT COME CLOSE TO ANY OTHER ACFT. THE LATE CHANGE; COUPLED WITH MISSING PAGE TWO BEING SHOWN ON THE LEGS PAGE GOT ME OFF PROFILE. THE CAPT WAS HEADS DOWN; BUSY DOING SOMETHING WHEN THIS OCCURRED. I HAD THE CHART OUT; BUT RELIED ON THE LEGS PAGE. IN THE FUTURE I'LL TRY TO HAVE BOTH PLTS CONFIRM; AS WE ARE SUPPOSED TO; CONFIRM ALT CHANGES PER THE PROFILE.

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