As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON INSP REQUIRED FOR AAIP FLIP, A CRACK WAS DISCOVERED ON THE CO-PILOTS 25 DEGREE FRAME DOUBLER THAT WAS INSTALLED IAW SB 53.00.41. DOUBLER WAS RE-RIVETED IN PLACE, AND SEALED. NO FURTHER DEFECTS OR DISCREPANCIES NOTED. ACFT RETURNED TO SERVICE.