Narrative:

We experienced significant airframe or engine vibration during descent. Descent was 'managed' and N1's were between 78 percent and 82 percent. Airspeed was 0.79 mach. We had the flight attendants walk through the cabin and they reported vibrations, from the wing forward to first class. Vibration was constant and high frequency. With power at idle, vibration was less but still noticeable. Engine vibration monitors showed normal readings. We felt the vibration in the rudder pedals and floor boards for the entire descent. This aircraft has also been reported to have had wing spar corrosion. Corrosion on the wing spar and significant vibration are 2 things I don't like to put in the same sentence. Callback conversation with reporter revealed the following information: this aircraft was the first A320 on the line with this air carrier. Reporter says there had been reports of corrosion on the wing spar which made him very concerned when experiencing the airframe vibration. Post flight inspection revealed an access panel was loose on the wing and assumed to have been the cause of the vibration. This reporter has had no further feedback or flown the same aircraft since. This reporter has sent several reports about the A320 and was pleasantly surprised that airbus industries is informed and provides feedback as a result of these reports.

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Original NASA ASRS Text

Title: ACFT EQUIP PROB. VIBRATION IN FLT.

Narrative: WE EXPERIENCED SIGNIFICANT AIRFRAME OR ENG VIBRATION DURING DSCNT. DSCNT WAS 'MANAGED' AND N1'S WERE BTWN 78 PERCENT AND 82 PERCENT. AIRSPD WAS 0.79 MACH. WE HAD THE FLT ATTENDANTS WALK THROUGH THE CABIN AND THEY RPTED VIBRATIONS, FROM THE WING FORWARD TO FIRST CLASS. VIBRATION WAS CONSTANT AND HIGH FREQ. WITH PWR AT IDLE, VIBRATION WAS LESS BUT STILL NOTICEABLE. ENG VIBRATION MONITORS SHOWED NORMAL READINGS. WE FELT THE VIBRATION IN THE RUDDER PEDALS AND FLOOR BOARDS FOR THE ENTIRE DSCNT. THIS ACFT HAS ALSO BEEN RPTED TO HAVE HAD WING SPAR CORROSION. CORROSION ON THE WING SPAR AND SIGNIFICANT VIBRATION ARE 2 THINGS I DON'T LIKE TO PUT IN THE SAME SENTENCE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THIS ACFT WAS THE FIRST A320 ON THE LINE WITH THIS ACR. RPTR SAYS THERE HAD BEEN RPTS OF CORROSION ON THE WING SPAR WHICH MADE HIM VERY CONCERNED WHEN EXPERIENCING THE AIRFRAME VIBRATION. POST FLT INSPECTION REVEALED AN ACCESS PANEL WAS LOOSE ON THE WING AND ASSUMED TO HAVE BEEN THE CAUSE OF THE VIBRATION. THIS RPTR HAS HAD NO FURTHER FEEDBACK OR FLOWN THE SAME ACFT SINCE. THIS RPTR HAS SENT SEVERAL RPTS ABOUT THE A320 AND WAS PLEASANTLY SURPRISED THAT AIRBUS INDUSTRIES IS INFORMED AND PROVIDES FEEDBACK AS A RESULT OF THESE RPTS.

Data retrieved from NASA's ASRS site as of July 2007 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.