Narrative:

Experienced severe airframe vibration during climb out at approximately FL260. No abnormal flight control or engine indications. No ECAM messages displayed. Reduced pitch and airspeed and vibrations ceased. Returned to departure airport for a precautionary landing. No abnormalities noted on post-flight inspection.

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Original NASA ASRS Text

Title: A320 flight crew reported severe airframe vibration climbing out of FL260. Reducing pitch and airspeed caused vibrations to cease; however crew elected to return to their departure airport.

Narrative: Experienced severe airframe vibration during climb out at approximately FL260. No abnormal flight control or engine indications. No ECAM messages displayed. Reduced pitch and airspeed and vibrations ceased. Returned to departure airport for a precautionary landing. No abnormalities noted on post-flight inspection.

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.