Narrative:

Crew was distracted by brand new, bright eyed, bushy tailed flight engineer expressing his amazement at ground features near the airport. I was flying and had a descent to 7000 ft set up, and while stupidly looking at something he was so earnestly describing on the ground, I blew through 7000 ft and caught it at 6700 ft. Controller mentioned it and we immediately climbed back to 7000 ft. There was no conflict with any other traffic. We had a serious discussion following the flight about sterile cockpit and where our attention ought to be in the terminal area. Supplemental information from acn 473618: we were on a high right downwind for the runway in visual conditions when our so asked a question about a landmark near the airport. All 3 of us then looked outside at the point and a small discussion ensued. During this time, the captain who was hand-flying continued the descent below the assigned altitude of 7000 ft. I told him and he readjusted to maintain 7000 ft.

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Original NASA ASRS Text

Title: A DSNDING B727-200 OVERSHOOTS ITS ASSIGNED ALT WHEN THE PF, THE PIC, IS DISTRACTED BY THE SO 3 MI N OF ORD, IL.

Narrative: CREW WAS DISTRACTED BY BRAND NEW, BRIGHT EYED, BUSHY TAILED FE EXPRESSING HIS AMAZEMENT AT GND FEATURES NEAR THE ARPT. I WAS FLYING AND HAD A DSCNT TO 7000 FT SET UP, AND WHILE STUPIDLY LOOKING AT SOMETHING HE WAS SO EARNESTLY DESCRIBING ON THE GND, I BLEW THROUGH 7000 FT AND CAUGHT IT AT 6700 FT. CTLR MENTIONED IT AND WE IMMEDIATELY CLBED BACK TO 7000 FT. THERE WAS NO CONFLICT WITH ANY OTHER TFC. WE HAD A SERIOUS DISCUSSION FOLLOWING THE FLT ABOUT STERILE COCKPIT AND WHERE OUR ATTN OUGHT TO BE IN THE TERMINAL AREA. SUPPLEMENTAL INFO FROM ACN 473618: WE WERE ON A HIGH R DOWNWIND FOR THE RWY IN VISUAL CONDITIONS WHEN OUR SO ASKED A QUESTION ABOUT A LANDMARK NEAR THE ARPT. ALL 3 OF US THEN LOOKED OUTSIDE AT THE POINT AND A SMALL DISCUSSION ENSUED. DURING THIS TIME, THE CAPT WHO WAS HAND-FLYING CONTINUED THE DSCNT BELOW THE ASSIGNED ALT OF 7000 FT. I TOLD HIM AND HE READJUSTED TO MAINTAIN 7000 FT.

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.