What was found
AFT CARGO BAY LONGITUDINAL BEAM BETWEEN FR 63-64 HAS A 1" SQ AREA OF CORROSION AT LWR SURFACE LT SIDE. AFTER REMOVAL OF LEVEL 1 CORROSION FOUND AFT CARGO COMPT LONGITUDINAL BEAM BETWEEN FR 63-64, LT SIDE TO BE OUT OF LIMITS IAW DWG 17, A255-71979. R & R LONGITUDINAL BEAM BETWEEN FR 63-64, LT SIDE IAW 51-72-10, PGS 1- 3.