What was found
INSPECTION TYPE: 4C, CENTER WING TANK LOWER LOWER STRINGER 47 CRACKED AT XCW =17 AND XCW =-17. ACCOMPLISHED SPLICE REPAIR ON CENTER WING TANK LOWER STRINGER 47 FROM XCW=32 TO XCW =-32 IAW VT-SAA EA 011-5710-01-A5791, REV I/R AND EO 5710-57361-A.