What was found
ATW - AFT VESTIBULE FLOOR SUPPORT STRUCTURE, FIRST INTERCOSTAL INBOARD OF AIRSTAIR RAILS, LT SIDE HAS A RIVET WITH CORROSION AROUND IT. DRILLED OUT RIVET, REMOVED MINOR SURFACE CORROSION, USED PROTECTIVE TREATMENT ON BARE SURFACE, PRINTED AND COVERED SURFACE WITH PRC. INSTALLED NEW RIVET.