As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CORROSION WAS FOUND ON THE OUTER SURFACE OF THE FRAME DURING INCORPORATION OF AN UNRELATED SERVICE BULLETIN. AFTER BLENDING OUT THE CORROSION THE MINIMUM REMAINING THICKNESS WAS 0.071", FROM A NOMINAL THICKNESS OF 0.120". STATIC STRENGTH ANALYSIS OF THE REDUCED THICKNESS DID NOT PROVIDED ADDEQUATE RESERVE FACTOR. THE PART WAS REPLACED.