As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE CORROSION WAS DISCOVERED ON THE LEFT SIDE AFT VERTICAL ANGLE (P/N: 5131007-5) OF THE VERTICAL STABILIZER BETWEEN APPROXIMATE W.L. 142.514 AND 145.380. THIS CORROSION IS 2.866 INCHES LONG, AND HAS EXFOLIATED THE FLANGE OF THE ANGLE FROM ITS ORIGINAL THICKNESS OF .150 TO .239. THIS ANGLE WILL BE REPLACED WITH FACTORY NEW PARTS. PLEASE SEE PICTURE AND MEASUREMENTS ATTACHED TO THIS SDR FOR FURTHER DETAILS.