Narrative:

While descending to 5000 ft MSL on a right base to mco runway 35 and anticipating a visual approach, we descended to about 4600 ft MSL while approach control vectored us back to a right downwind. Recognized altitude deviation and corrected immediately.

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Original NASA ASRS Text

Title: B737-200 DSNDING TO 5000 FT. ANTICIPATING VISUAL APCH GOT TO 4600 FT. VECTORED TO A R DOWNWIND AND CORRECTED ALT TO 5000 FT.

Narrative: WHILE DSNDING TO 5000 FT MSL ON A R BASE TO MCO RWY 35 AND ANTICIPATING A VISUAL APCH, WE DSNDED TO ABOUT 4600 FT MSL WHILE APCH CTL VECTORED US BACK TO A R DOWNWIND. RECOGNIZED ALTDEV AND CORRECTED IMMEDIATELY.

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.