What was found
DURING HEAVY MAINTENANCE: CORROSION LOWER SILL LOCATED BTW FR 60 AND 62 AT LEVEL STR 38R IN AFT CARGO; REF AEROMAN N/R 2022-355522, REMOVED AND REPLACED LOWER SILL, FASTENERS. LOC BTW FR 60 AND FR62 AT LEVEL STR 38R I.A.W. A320 SRM 53-41-49-300-002, A320 SRM 51-72-11, A320 SRM 51-42-11.'