What was found
MCN - MAJOR REPAIR - DURING C-17 CHECK CORROSION WAS FOUND ON R/H AFT LAVATORY INBOARD FORWARD MOUNT FITTING BS 967, RBL 50. MAINTENANCE REMOVED AND REPLACED R/H AFT LAVATORY INBOARD FORWARD MOUNT FITTING BS 967, RBL 50, IAW B737-300 SRM 51-40-02, PG. 6-10, AND SRM 53-60-51, PG. 106-113.