What was found
RETURNED TO FIELD SHORTLY AFTER TAKEOFF DUE TO LOOSE PASSENGER WINDOW FRAME. *S/D* BOTH PASSENGER WINDOWS AT ROW SIX ON THE RIGHT HAND SIDE OF FUSELAGE EXHIBITED DAMAGE DUE TO MISPLACEMENT OF GROUND POWER UNIT ON RAMP PRIOR TO DEPARTURE. ACCOMPLISHED VISUAL INSPECTION OF SURROUNDING STRUCTURE AND PERFORMED CONDUCTIVITY CHECK OF FUSELAGE SKIN WITH NO DEFECTS NOTED. BOTH DISCREPANT WINDOWS REPLACED WITH NEW WINDOW ASSEMBLIES PER THE MM.