What was found
DURING HEAVY MAINTENANCE, CORROSION LOWER SILL BTW FR 66 TO FR 68 AT LEVEL STR 23L AFT GALLEY AREA; (ALL WORK ACCOMPLISHED ON AEROMAN NR 2021-386854 W0 2021-196/1) REMOVED CORROSION ON LOWER SILL BTW FR 66 TO FR 68 AT LEVEL STR 23LH IAW SRM A320 SRM 51-44-11 EVALUATED AND FOUND OUT OF LIMITS IAW A320 SRM 53-41-14-283-002 SHEET 1 PERFORMED A PERMANENT REPAIR IAW A320 SRM53-41-11-300-001FIG 001 REPAIR PRINCIPLE 1 CATEGORY REPAIR ""A"" NO FURTHER INSPECTION REQUIRED.