As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXFOLIATION ON UPPER DOUBLER ON INTERNAL CANTED KEEL STA Y=685 APROX BTW LONGERON 30-29R AT FUSELAGE (FUS). SUMMARY OF NRC 00523: CORROSION LEVEL 2. EXFOLIATION ON UPPER DOUBLER ON INTERNAL CANTED KEEL STA Y=685 APROX BTW LONGERON 30-29R AT FUSELAGE, WAS REPAIRED PER PRI 621188-14 REV 2 AND ER/A 621188-14 REV ORIGINAL SECTION I: PERMANENT REPAIR. ASSOCIATED ER/A 14-621188 ADDED FOR AC 9529. (LP #0622850)