What was found
DURING C-CHECK, STR 27 L BETWEEN STA 620-640 AT POWER CABLE STAND-OFF. REMOVED FASTENERS FOR ACCESS AS REQ'D IAW B727 SRM 51-30-2. CUT OUT DAMAGED AREA AT STA 630 STR 27 L, CORROSION OUT OF LIMITS IAW B727 SRM 53-10-1 FIG 1AREA OF CUT OUT 3 INCHES AND FABRICATED STRINGER REPAIR USING BAC 1498-25 PO335792 DIM 13 INCHES AND ONE FILLER USING BAC1498-25 PO335792 DIM 3 INCHES IAW B727 SRM 53-10-3 FIG 1. ALODINE AND PRIMED ALL REPAIR PARTS IAW B727 SRM 51-10-2 AND INSTALLED REPAIR AND STAND-OFF IAW B727 SRM 53-10-3 FIG 1.