As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REAR SPAR TO TE LOWER PANEL ATTACH CHORD FWD OF OTBD AILERON AT WS 1069 SPLIT ON EDGE. R & R PANEL ATTACH CHORD IAW DWG 113T1683 & SRM 51-40-02. CORRODED, PN 113T1683-33, PART NAME PANEL SUPPORT RIB CHORD, SN NSN, STRINGER & WS LOCATION LT WS 1069.65. ACFT WAS GNDED.