As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION OF THE AIRCRAFT TO EVALUATE A PRESSURIZATION LEAK, THE PANEL BEHIND THE REAR SPAR WAS FOUND TO BE CRACKED IN THE LOWER RADIUS AREA. THERE WAS A CRACK APPROXIMATELY 4 INCHES LONG NEAR THE CENTER LINE OF THE AIRCRAFT. THE AIRCRAFT SKIN WAS NOT FOUND TO BE CRACKED AT THIS TIME. THIS PANEL COVERS THE REAR PART OF THE REAR WING SPAR AS IT PASSES THROUGH THE FUSELAGE. IT IS NOT BELIEVED THAT THE SPAR ITSELF IS CRACKED AT THIS TIME.