What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSION LOWER SILL LOCATED BTW FR 66 TO FR 68 AT LEVEL STRG 23L AT AFT GALLEY AREA. MEASURE OF CORROSION ARE L:3.73 INCH, W=2.03 INCH, D= 0.030 INCH. MAINTENANCE REPLACED LOWER SILL LOCATED BTW FR 66 TO FR 68 AT LEVEL STRG 23L AT AFT GALLEY AREA IAW A319 SRM 51-42-11-801, A319 SRM 51-72-11-911-001, DWG D53480505