Narrative:

ZOB asked us to descend from FL290 to FL280. During descent altitude alert sounded, I looked up and we were at FL277. Occurrence caused by distraction approaching leveloff altitude. So was balancing fuel, captain, who was PF, was working with so on fuel and I was talking to ZOB about deviating for WX. Rule #1 was not followed which is 'fly the airplane.' I was complacent by not making sure the PF was actually flying the aircraft. Supplemental information from acn 409576: problem caused by inattention to altimeter. So was obtaining ATIS for landing airport and not backing up captain and first officer.

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Original NASA ASRS Text

Title: A DSNDING B727 OVERSHOT ITS ALT WHEN THE FLC IS DISTRACTED AND NOT WATCHING THE ACFT'S ALT.

Narrative: ZOB ASKED US TO DSND FROM FL290 TO FL280. DURING DSCNT ALT ALERT SOUNDED, I LOOKED UP AND WE WERE AT FL277. OCCURRENCE CAUSED BY DISTR APCHING LEVELOFF ALT. SO WAS BALANCING FUEL, CAPT, WHO WAS PF, WAS WORKING WITH SO ON FUEL AND I WAS TALKING TO ZOB ABOUT DEVIATING FOR WX. RULE #1 WAS NOT FOLLOWED WHICH IS 'FLY THE AIRPLANE.' I WAS COMPLACENT BY NOT MAKING SURE THE PF WAS ACTUALLY FLYING THE ACFT. SUPPLEMENTAL INFO FROM ACN 409576: PROB CAUSED BY INATTENTION TO ALTIMETER. SO WAS OBTAINING ATIS FOR LNDG ARPT AND NOT BACKING UP CAPT AND FO.

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.