What was found
ENG OVHT DISPLAYED WITH ENG OVHT LIGHT ILLUM. LIGHT EXTING AFTER THRUST REDUCTION AND CAUTION LIGHT ON. 4AW AMM 36-11-01 P.401 / 36-11-07 P.401. REMOVED AND REPLACED BOTH HP2 AND HP6 DUCT ASSY IAW AMM 71-00-00 ENG RUN PERFORMED SATISFACTORY. P/N 312N5306-1 HP2 ; S/N ON: 05881143 S/N OFF: 12900828. DURING TROUBLESHOOTING FOUND EICAS MSG TURBINE OVHT LP1 DISPLAYED. IAW AMM 26-13-01 P401 REMOVED AND REPLACED LOOP 1 TURBINE OVHT SWITCH. OPS CHECK SATISFACTORY.