As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FOLLOWING RECEIPT OF SERVICE DIFFICULTY ADVISORY AV-1999-03R1, AN INSPECTION REVEALED A CRACK IN THE BULKHEAD BELOW THE NUTPLATES. CRACK HAD PREVIOUSLY BEEN REPAIRED WITH A PATCH BUT CRACK HAD SPREAD INTO AN ADJOINING STRUCTURAL PANEL. ANOTHER CRACK WAS ALSO LOCATED IN THE AFT LT BOX BEAM AREA ON THE SKIN.