Narrative:

During initial climb; the ECAM annunciated and showed the lower access doors unlocked; in amber. After due consideration; I elected to return to ZZZ for maintenance instead of continuing on for another 3 hours to ZZZ1. An emergency was declared due to the expected overweight landing; and the flight returned to the gate at ZZZ uneventfully. Landing weight was 318000 pounds; and touchdown was at less than 200 FPM and gentle.

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Original NASA ASRS Text

Title: AFTER TKOF AN A300'S ECAM INDICATED AN ACCESS DOOR WAS UNLOCKED. AN EMER WAS DECLARED AND THE FLT RETURNED FOR AN OVERWT LNDG.

Narrative: DURING INITIAL CLB; THE ECAM ANNUNCIATED AND SHOWED THE LOWER ACCESS DOORS UNLOCKED; IN AMBER. AFTER DUE CONSIDERATION; I ELECTED TO RETURN TO ZZZ FOR MAINT INSTEAD OF CONTINUING ON FOR ANOTHER 3 HRS TO ZZZ1. AN EMER WAS DECLARED DUE TO THE EXPECTED OVERWT LNDG; AND THE FLT RETURNED TO THE GATE AT ZZZ UNEVENTFULLY. LNDG WT WAS 318000 LBS; AND TOUCHDOWN WAS AT LESS THAN 200 FPM AND GENTLE.

Data retrieved from NASA's ASRS site as of January 2009 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.