What was found
1S CHECK - LEVEL 2 GALVANIC CORROSION ON LEFT LOWER SILL LOWER CORNERS AROUND GIRT BAR FITTINGS BETWEEN FR16 TO FR20, S23L AT L1 DOORWAY. REPLACED LEFT LOWER SILL BETWEEN FR16 TO FR20, S23L AT L1 DOORWAY IAW A319 SRM 51-72-11 & AIRBUS DRAWING D53110339.