Narrative:

During takeoff about the time of rotation noticed loud buzzing noise. During level off when power decreased buzzing decreased. [We] noticed higher than normal N1 vibration level on the number 2 engine. No ECAM and all other engine indications normal. We decided that there was possible engine damage and decided to return to the airport. Performed checklists and returned to airport. [We made an] overweight landing air turn back. At the gate mechanics found four blades damaged on the number two engine; possible bird strike. I believe we should keep birds and airplanes in two different places.

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Original NASA ASRS Text

Title: An A319 returned to it's departure airport following a possible bird strike on takeoff that damaged four fan blades on the right engine.

Narrative: During takeoff about the time of rotation noticed loud buzzing noise. During level off when power decreased buzzing decreased. [We] noticed higher than normal N1 vibration level on the number 2 engine. No ECAM and all other engine indications normal. We decided that there was possible engine damage and decided to return to the airport. Performed checklists and returned to airport. [We made an] overweight landing air turn back. At the gate mechanics found four blades damaged on the number two engine; possible bird strike. I believe we should keep birds and airplanes in two different places.

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.