What was found
DURING ACCOMPLISHMENT OF AD 90-18-03, REF DC-9 SB 57-98, REV 8, FOLLOWING DISCREPANCIES: RT WING LOWER TEE CAP AT STA XCW 58.00 BETWEEN STR'S 11-17, EXFOLIATION CORROSION EXISTS. REMOVED CORROSION BTWN STR'S 11-12, .100 INCH MATL LOSS; STR'S 12-13, .067 INCH MATL LOSS; STR'S 13-14, .099 INCH MATL LOSS; STR'S 15-16, .060 INCH MATL LOSS; STR'S 16-17, .160 INCH MATL LOSS. INSP LT WING LOWER TEE CAP AT XCW 58.00 BTWN STR'S 11-17. EXFOLIATION CORROSION ALSO EXISTS. REMD CORROSION BTWN STR'S 11-12, .050 INCH MATL LOSS; STR'S 13-14, .050 MATL LOSS; STR'S 15-16, .012 MATL LOSS. CORROSION NOTED IN BARREL NUT HOLES AT STR'S 11-17, LT AND STR'S 18-23, LT. ACFT TT: 69,772.10 HRS. ACFT CYCLES, 82,067.