What was found
POSSIBLE CRACK L ANGLE RT A/C BAY AFT WALL (STA 663) UPPER INBD CORNER. VERIFIED CRACK ON L-ANGLE ON RH A/C BAY; STA.663 UPPER INBD CORNER <BR>WITH HFEC SURFACE INSPECTION IAW NDT MANUAL PART 6, 51-00-00, PROCEDURE 23. LOCATED & DRILLED HOLES IN NEW ANGLE PER SRM 51-40-02. INSPECTED C/A #3 LOCATING AND DRILLING OF HOLES IN NEW ANGLE IAW SRM 51-40-02. REMOVED ANGLE IAW SRM 51-40-02. R & R L-ANGLE IAW SRM 51-40-02. INSTALLED CHECK VALVE DUCT IN LT A/C BAY IAW AMM 21-51-07.