What was found
UPPER CHORD SPLIT ON EDGE & CORRODED AROUND NUTPLATES ON REAR SPAR TO TE BEAM, AT WS 285, 14 INCHES FROM REAR SPAR M, INBD OF GEAR TRUNNION. REMOVED RT WING UPPER TE PANELS. R & R TE UPPER CHORD AT WW 285.14 IAW SRM 51-40-02 PARA 4.6 & 7D. INSTALLED PANEL AT RT WING UPPER TE IAW SRM 51-40-02. CORRODED L2, PN 113T1623-126, SN N/A, PART NAME CHORD, FS & BS LOCATION ON ACFT WW 281.61. ACFT WAS GNDED.