What was found
FORWARD LOWER CARGO FS 456 - 478, STRINGER 33L HAS EVIDENCE OF IMPACT DAMAGE TO SIDE OF STRINGER CAUSING IT NOT TO LAY FLAT AGAINST FUSELAGE SKIN ON LOWER SIDE OF STRINGER. R & R STRINGER AT FS 456 - 478, STRINGER 33L IAW SRM 51-40-02. R & R EQUIP COOLING DUCT, DUCT INSTALLATION IAW AMM 21-58- 09-4. SEE REA 653- 60965, SDR INFO CORRODED, PN 143T3001, PART NAME STRINGER, SN NSN, FS & BS LOCATION FROM 456 TO 478, STRINGER & WS LOCATION FROM STRINGER 33L. ACFT WAS GNDED.