As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON INSTALLATION OF HORIZONTAL STABILIZER ATTACH BULKHEAD MOD PER SB SEB 88-3, DYE PENETRANT INSPECTION OF BULKHEAD REVEALED SEVERAL CRACKS AROUND THE TOP RIVET HOLE UNDER THE LT DOUBLER, .3125 INCH LONG, AND VISIBLE BEYOND DOUBLER ON RT FORE AND AFT DOUBLERS. TOP RIVET HAD SHEARED AND DOUBLERS WERE PULLING AWAY FROM BULKHEAD.