Narrative:

Climbing through 10;400 the ECAM main deck cargo smoke warning system activated. First officer smelled fumes and immediately put on O2 mask. I told him to declare emergency with center; who immediately turned us back to the departure airport and handed us back to approach control. Approach control vectored us back to the ILS final and we landed uneventfully. After landing; taxied clear of the runway on taxiway C and stopped to assess the situation. Airport rescue and fire fighters met the aircraft on taxiway a and followed us to the ramp after determining the smoke in the fuselage had dissipated. Captain was flying pilot for entire flight.

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Original NASA ASRS Text

Title: An A300 MAIN DECK CARGO SMOKE ECAM alerted during climb thought 10;000 FT. An emergency was declared and the aircraft returned to the departure airport where maintenance surmised that de-ice fluid got into the air conditioning system because they found no smoke source.

Narrative: Climbing through 10;400 the ECAM Main Deck Cargo Smoke warning system activated. First Officer smelled fumes and immediately put on O2 mask. I told him to declare emergency with Center; who immediately turned us back to the departure airport and handed us back to Approach Control. Approach Control vectored us back to the ILS final and we landed uneventfully. After landing; taxied clear of the runway on Taxiway C and stopped to assess the situation. Airport Rescue and Fire Fighters met the aircraft on Taxiway A and followed us to the ramp after determining the smoke in the fuselage had dissipated. Captain was flying pilot for entire flight.

Data retrieved from NASA's ASRS site as of April 2012 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.