Narrative:

After this flight we kept the aircraft and crew for the next flight. While the passengers were boarding; two of the passengers sitting in row 15ABC discovered that the seats were not attached to the aircraft. We contacted maintenance and the seats were reattached. We had apparently flown [previous] flight with the row of seats detached; but in their proper location. I don't know how long the seats had been detached; but looking through the logbook I could not find any maintenance performed on the aircraft which involved those seats or any item which may have needed them to be detached for maintenance.cause: maintenance or structural issue.are the flight crews going to have to start checking the seat attach fittings on preflight?

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Original NASA ASRS Text

Title: Boeing 737 Captain reported that passengers discovered a row of seats were not properly attached to the aircraft.

Narrative: After this flight we kept the aircraft and crew for the next flight. While the passengers were boarding; two of the passengers sitting in row 15ABC discovered that the seats were not attached to the aircraft. We contacted maintenance and the seats were reattached. We had apparently flown [previous] flight with the row of seats detached; but in their proper location. I don't know how long the seats had been detached; but looking through the logbook I could not find any maintenance performed on the aircraft which involved those seats or any item which may have needed them to be detached for maintenance.Cause: Maintenance or structural issue.Are the flight crews going to have to start checking the seat attach fittings on preflight?

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.