What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON SUPPORT WEB LEVEL STR 23L AND BETWEEN FR 69 TO FR 70 AT AFT GALLEY AREA; REF AEROMAN WO 934679, NR 2018-343797, REPLACED SUPPORT WEB LEVEL STR 23L AND BETWEEN FR 70 AT AFT GALLEY AREA I.A.W. SRM A320 51-72-11 AND DRAWING D53470100.