As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PRESSURE BULKHEAD LEFT UPPER DOOR CORNER HAD 2 CRACKS THAT NEEDED TO BE STOP DRILLED. REMOVED OUTSIDE DOUBLER, STOP DRILLED CRACKS IAW SRO J060088. REINSTALLED DOUBLER IAW SRO J060088 AND DC9 SRM 51-30-5. CRACK LENGTHS WERE 7/8", 3/4" AND 1".