B737-700
Flight Crew Last 90 Days 234
Communication Breakdown
Aircraft Equipment Problem Less Severe
General Maintenance Action
Incorrect / Not Installed / Unavailable Part; Aircraft
I was informed by Maintenance that a passenger on the flight; two legs prior; noticed a screw on the wing that wasn't fully secured.  The passenger never informed the flight crew.
[Report narrative contained no additional information]
Passenger on a B737-700 observed a screw on the wing not fully secured.  Maintenance addressed the problem.