What was found
HEAVY CK COE / MAJOR REPAIR: LONGITUDINAL FLOORBEAM CRACKED LEFT O/B AFT FR 30. REMOVED CRACKED SECTON, FABRICATED AND INSTALLED NEW SECTION LEFT O/B LONGITUDINAL FLOORBEAM FROM FRAME 30-31, WL 2327.5, BL 640L IAW M7 DWG & M7 SB ATR72-53-015.