What was found
SKIN IS BULGED UP & FASTENER HEAD IS SHEARED & ROTATED AT FS STATION 440, STRINGER 39L. REMOVED SKIN CORROSION, REPLACED STRINGER 39L IAW SRM 53-00-01 & SRM 51-40-02. SDR INFO, PN BAC 1498-205, PART NAME, STRINGER 39L, CORRODED, EXACT FS & BS LOCATION ON ACFT, FS 434 TO FS 456, EXACT STRINGER & WS LOCATION ON ACFT STRINGER 39L. ACFT WAS GNDED.