What was found
WHILE A/C WAS IN FOR HEAVY CHECK FOUND WASTE BOX IS DELAMINATING AND CORRODED. MX REMOVED AND REPLACED WASTE BOX ASSEMBLY IAW EMB 190 SRM 51-23-02, 51-40-02,51-43-03, 51-41-02. PN 170-65078-403. A/C REMAINS IN CMH FOR HEAVY CHECK COMPLETION.