What was found
DURING HEAVY MAINTENANCE: CORROSION: SHEAR CLIP FR88 STR27-28R AFT FUSELAGE; REF TOMX W/O N249JB/2525/E190/BRIDGE NR 00150: DEEMED OUT OF LIMITS IAW SRM 51-10-03, 51-12-01, AND 51-75-16. R & R SHEAR CLIP @ FR88 STR27-28R IAW SRM 51-41-01 AND 51-41-02.