Narrative:

A southwest arrival into cyyz cleared profile descent runway 24L/right, however, an altitude change was issued before ywt crossing to maintain 15000 ft. In descent, before reaching 15000 ft and ywt, we were reissued profile descent runway 24L/right. During preflight profiles were discussed, after ATIS received, again discussed. During descent before ywt, I asked first officer captain flying, if there were additional local NOTAMS on the second ATIS frequency, he said he would check. I told him I had the radios. During that time I, the PF, was issued a frequency change to cyyz arrival. I checked the next crossing yyz 26 DME at 7000 ft at 210 KTS and started descent. At 10500 ft I was told by ATC to climb back to 11000 ft and check correct profile descent, which was done and I found that I was looking at runway 6L/right profile. I made the correction, informed the first officer and asked ATC if there would be a problem. ATC reply was no. During frequency change while first officer was retrieving second ATIS, I had in error, hit the binder holding approach plates and page flipped to incorrect profile.

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Original NASA ASRS Text

Title: FLC OF AN MLG OVERSHOT XING ALT DURING A PROFILE DSCNT DUE TO ACCIDENTALLY REFERRING TO THE WRONG CHART.

Narrative: A SW ARR INTO CYYZ CLRED PROFILE DSCNT RWY 24L/R, HOWEVER, AN ALT CHANGE WAS ISSUED BEFORE YWT XING TO MAINTAIN 15000 FT. IN DSCNT, BEFORE REACHING 15000 FT AND YWT, WE WERE REISSUED PROFILE DSCNT RWY 24L/R. DURING PREFLT PROFILES WERE DISCUSSED, AFTER ATIS RECEIVED, AGAIN DISCUSSED. DURING DSCNT BEFORE YWT, I ASKED FO CAPT FLYING, IF THERE WERE ADDITIONAL LCL NOTAMS ON THE SECOND ATIS FREQ, HE SAID HE WOULD CHK. I TOLD HIM I HAD THE RADIOS. DURING THAT TIME I, THE PF, WAS ISSUED A FREQ CHANGE TO CYYZ ARR. I CHKED THE NEXT XING YYZ 26 DME AT 7000 FT AT 210 KTS AND STARTED DSCNT. AT 10500 FT I WAS TOLD BY ATC TO CLB BACK TO 11000 FT AND CHK CORRECT PROFILE DSCNT, WHICH WAS DONE AND I FOUND THAT I WAS LOOKING AT RWY 6L/R PROFILE. I MADE THE CORRECTION, INFORMED THE FO AND ASKED ATC IF THERE WOULD BE A PROB. ATC REPLY WAS NO. DURING FREQ CHANGE WHILE FO WAS RETRIEVING SECOND ATIS, I HAD IN ERROR, HIT THE BINDER HOLDING APCH PLATES AND PAGE FLIPPED TO INCORRECT PROFILE.

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.