What was found
DURING HEAVY CHECK MAINTENANCE FOUND CORROSION ON LAV SERVICE DOOR AT HINGE. REMOVED AND REPLACED LAV SERVICE DOOR. SRM 51-40-08. APPLIED SURFACE PROTECTION AND PLACARD LAV SERVICE DOOR PER SRM 51-23-04, 51-23-05, 51-23-06 AND AMM 20-10-09. A/C REMAINS IN CHECK.