As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTION IT WAS NOTED THAT THE WING CENTER SECTION UPPER LOBE TEE IS CRACKED AT BS 760.9 LBL 45.50. THE TEE WAS REMOVED AND REPLACED AT STATION 760.9. NO OTHER DEFECTS WERE NOTED. AIRCRAFT WAS RETURNED TO SERVICE.