What was found
FLC FUSELAGE STATION 676, LBL 21 - 28 UPPER CHORD UNDERNEATH CORRODED AT NUTPLATE LOCATIONS. R & R UPPER CHORD AT STATION 676 IN THE FLC IAW SRM 51-40- 02. PN 1506-3123, 7075-T6511, PO 0046081. SDR INFO CORRODED LEVEL 2, PN 1506-3123 7075-T6511, PART NAME UPPER CHORD, SN NSN. ACFT WAS GNDED.