What was found
DURING HEAVY MAINTENANCE, CORROSION UPPER SKIN, BTWN RIBS 8 & 9, LT WING T/E. MEASURES OF CORROSION ARE L=3.377IN W=1.465IN , REWORKED CORROSION ON LT WING UPPER SKIN IAW SRM 51-74-00 AND MEASURES AFTER REWORK ARE P1 L=4.042IN, W=2.842IN, EVALUATED REWORK & FOUND WITHIN LIMITS IAW SRM 57-21-11-283-007, THIS REPAIR IS CLASSIFIED CATEGORY B.