What was found
CORROSION WAS FOUND AT LH WING UPPER SKIN UPPER SURFACE BETWEEN WS.372 AND WS.374 , BETWEEN S-11 AND S-12 AREA . CORROSION WAS FOUND AT LH WING UPPER SKIN UPPER SURFACE BETWEEN WS.409.5 AND WS.412 , S-13 AREA . CORROSION WAS FOUND AT LH WING UPPER SKIN UPPER SURFACE BETWEEN WS.497 AND WS.500 , S-11 AREA . CORROSION WAS FOUND AT LH WING UPPER SKIN UPPER SURFACE BETWEEN WS.485.5 AND WS.488.5 , BETWEEN S-9 AND S-10 AREA. REMOVED CORROSION LEVEL 2 AT LH WING UPPER SKIN SURFACE AND REMAINING THICKNESS IS WITHIN LIMITS. AREA CLEAN AND PROTECIVE. PER: EO 737-57-0051 PME NO: 004693.