What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON LOWER SILL AT LEVEL FR68 AND STR23R AT AFT GALLEY AREA (1EA); REF. NRC 2018-159125 W/O 909857. REPLACED LOWER SILL AT LEVEL STR23R BTW FR66 TO FR68 AFT GALLEY AREA (1EA) IAW SRM -51-72-11` AND DRAWING D53480505, D53470150