As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION OF UNDER FLOOR LAVATORY AREA, THE DOUBLER FOR THE OAT SENSOR WAS FOUND TO HAVE CORROSION. THE DOUBLER WAS REPLACED BY A FABRICATED DOUBLER AND INSTALLED IN ACCORDANCE WITH AERODESIGN AIRCRAFT ENGINEERING REPORT 1452-1.