As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEFECT WAS DISCOVERED WHILE CONDUCTING A 100HR/ANNUAL INSP. R/H WING INBOARD LOWER AFT SPAR CAP HAS INTERGRANULAR/ EXFOLIATION CORROSION. DEFECT IS APPROXIMATELY LOCATED AT RWS 30.0" AND MEASURES APPROX. 3.00" LONG, WHERE EXFOLIATION HAS OCCURRED. AIRCRAFT IS UNAIRWORTHY. FAILURE OF THE WING STRUCTURE WAS EMINENT. REF: AD 2020-24-05, PIPER SB 1304B.