What was found
SUPPLEMENTAL INFORMATION: CRACK INTERNAL CAVITY STRINGER U-8 UPPER SURFACE BETWEEN RIB 19 TO RIB 20 AT LT WING ; 2021-549843 / [01] TOOL USED: TEMPERATURE CONTROLLER: P/N: P3015GOES00000; S/N: 142811020. DUE DATE: 21-JAN-22.; [02] PERFORMED REPAIR UPPER STRINGER U8 BETWEEN RIB 19 TO RIB 20 (WSTA 564.5 AND WSTA 591.5) LT WING IAW EA 21-157-03716 WIP 1 BARCODE TTG8Q009T67U AND EA 21-157-03716 BARCODE TTG8Q009YPH6 SEE INDIVIDUAL SIGN OFF BELOW.; [03] PERFORMED REPAIR UPPER STRINGER U8 BETWEEN RIB 19 TO RIB 20 (WSTA 564.5 AND WSTA 591.5) LT WING IAW EA 21-157-03716 WIP 1 BARCODE TTG8Q009T67U AND EA 21-157-03716 BARCODE TTG8Q009YPH6 SEE INDIVIDUAL SIGN OFF BELOW.