As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AN ANNUAL INSPECTION, REMOVED TRIM FROM LEFT AND RIGHT WINDSHIELD POSTS. FOUND FOAM INSULATION IN CONTACT WITH STEEL FITTINGS (PN 7955300 AND 7955301). FITTINGS AND ATTACHING BOLTS (AN3) WERE RUSTED. HAVE FOUND SEVERAL A/C WITH THIS PROBLEM. RECOMMEND REMOVAL OF FOAM INSULATION TREATMENT AND REMOVAL OF CORROSION. REPLACE AFFECTED HARDWARE. APPLY ZINC CHROMATE AND DINATROL AV8 CORROSION PREVENTATIVE.