As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG HIGH PRESSURE CONTROL VALVE CHAFING INTO 7TH STAGE AIR PRESSURE TURBINE CONTROL LINE. REMOVED 7TH STAGE COOLING TUBE, PER DC10-30 MM 75-22-00-02. REPAIRED DUCT PER EM 72-09-03. REINSTALLED DUCT AND HIGH PRESSURE VALVE. PERFORMED OPS AND LEAK CHECKS GOOD PER DC10-30 JET RUN HANDBOOK.