Narrative:

At V1 a loud warning/alarm was emanating from the overhead panel with no associated ECAM. The takeoff was continued aircraft was cleaned up and vectored for departure. We elected to remain with departure at 8;000 feet and 250 kts. We were vectored in a box pattern as we tried to find out what the noise was and why we were getting the alarm. The communication with the cabin crew was lost. A visual inspection of the cabin from the cockpit was conducted and no signs or indications of an emergency were noticed. We could not determine why we were unable to communicate with the cabin crew and why we were getting the alarm/noise. We elected to return to departure airport and ran the overweight landing checklist. The landing and rollout were uneventful; we taxied clear and stopped on the taxiway. The captain made another visual inspection and saw no signs of an emergency in the cabin and we continued to the gate. As we taxied in the purser slid a note under the door giving us his indications and that the cabin was ok but experience some abnormalities with the lights and signs as well as no communication abilities. The cabin crew handled the situation perfectly and flight attendant a's quick thinking with the note gave us the reassurance that it was ok to to taxi to the gate and deplane in a normal fashion. At the gate we shut down and after shutdown the power was cycled which stopped the alarm. Maintenance boarded the aircraft and found an issue with CID1.

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Original NASA ASRS Text

Title: A320 flight crew reported hearing a loud; alarm-like noise during takeoff; followed by the complete loss of the communication capability with the cabin crew. They elected to return to the departure airport; where a successful overweight landing was accomplished.

Narrative: At V1 a loud warning/alarm was emanating from the overhead panel with no associated ECAM. The takeoff was continued aircraft was cleaned up and vectored for departure. We elected to remain with departure at 8;000 feet and 250 kts. We were vectored in a box pattern as we tried to find out what the noise was and why we were getting the alarm. The communication with the cabin crew was lost. A visual inspection of the cabin from the cockpit was conducted and no signs or indications of an emergency were noticed. We could not determine why we were unable to communicate with the cabin crew and why we were getting the alarm/noise. We elected to return to departure airport and ran the overweight landing checklist. The landing and rollout were uneventful; we taxied clear and stopped on the taxiway. The captain made another visual inspection and saw no signs of an emergency in the cabin and we continued to the gate. As we taxied in the purser slid a note under the door giving us his indications and that the cabin was ok but experience some abnormalities with the lights and signs as well as no communication abilities. The cabin crew handled the situation perfectly and Flight Attendant A's quick thinking with the note gave us the reassurance that it was ok to to taxi to the gate and deplane in a normal fashion. At the gate we shut down and after shutdown the power was cycled which stopped the alarm. Maintenance boarded the aircraft and found an issue with CID1.

Data retrieved from NASA's ASRS site 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.