Narrative:

After arrival was informed by flight attendant that a passenger reported that an access panel on top of the left wing appeared to only have one fastener holding it on and that it was fluttering in flight. Upon further investigation it was found that 15 out of 17 screws were missing. Installed fasteners in panel and made a log entry.

Google
 

Original NASA ASRS Text

Title: Maintenance technicians reported that they were notified of a loose wing panel after a passenger noticed it fluttering in flight. Several fasteners were found missing from the panel.

Narrative: After arrival was informed by flight attendant that a passenger reported that an access panel on top of the left wing appeared to only have one fastener holding it on and that it was fluttering in flight. Upon further investigation it was found that 15 out of 17 screws were missing. Installed fasteners in panel and made a log entry.

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.