What was found
SHIP 5804 IN REF NRC 00173: CORROSION OUT OF LIMITS: (UT) THICKNESS MEASUREMENT WAS ACCOMPLISHED ON INBD/OUTBD PASSENGER RH SEAT CROWN BTW STA 365 TO STA 418. THEREFORE, IT IS OUT LIMITS PER B757-300 SRM 53-00-52-1A-1 PROCEDURE 1, ALLOWABLE DAMAGE 1, NOTE 1, DETAIL 1, FIGURE 101. CORRECTIVE ACTION: SUMMARY OF NRC 00599: CORROSION LEVEL 2. INBD/OUTBD PASSENGER RH SEAT CROWN BTW STA 365 TO STA 418 WERE REPLACED AND INSTALLED PER DWG 141N5131 REV C AND B757-300 SRM 51-40-02-0G PAR.7.D (1467856)