Narrative:

Cleared to 13000 ft direct str. Overshot altitude and immediately corrected back. Altimeter showed 13300 ft. Controller, when queried, said he saw 13400 ft. Crew was discussing an aircraft system which caused distraction.

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Original NASA ASRS Text

Title: B767 ALTDEV DEPARTING EDMM.

Narrative: CLRED TO 13000 FT DIRECT STR. OVERSHOT ALT AND IMMEDIATELY CORRECTED BACK. ALTIMETER SHOWED 13300 FT. CTLR, WHEN QUERIED, SAID HE SAW 13400 FT. CREW WAS DISCUSSING AN ACFT SYS WHICH CAUSED DISTR.

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.