What was found
DURING HEAVY CHECK MAINTENANCE FOUND SHEAR CLIP, FRAME, AND SKIN WITH CORROSION AT FR88, STR27R/28R. REMOVED AND REPLACED SHEAR CLIP AT FR- 88 STGR 27R-28R REF. EMB SRM51-40-08. BLENDED OUT CORROSION ON FRAME 88 AT STR27R/28R REF SRM 51-10-03, MATERIAL LOST 4"X2"X.003".THIS IS WITHIN ALLOWABLE LIMITS REF SRM 53-23-04/AD01. FOUND NO CORROSION ON THE SKIN ONLY ON THE FASTENERS. REMOVED AND REPLACED FASTENERS REF. EMB SRM 51-- 40-08. A/C REMAINS IN CHECK.