What was found
ETOPS SIGNIFICANT SYSTEM., R ENG EEC MODE ALERT ILLUMINATED DURING CLIMB THRU FL 330. PERFORMED ABNORMAL CHECKLIST AND EEC RETURNED TO NORMAL OPS. NOTE: A/T DICONNECTED JUST PRIOR TO EEC ALERT. FOUND P 4.95 LINE CHAFED WITH HOLE BEHIND TVC DUCT,REMOVED TUBE FOR EVAL. REMOVED AND REPLACED LINE IAW AMM 77-11-02-004-005-N00,404-004-N00. PERFORMED CORRECTIVE ACTION IAW PIMU MSG INDEX CH 71.350-21. REPAIR CONFIMATION C/W ON ENGINE RUN, NO FURTHER FAULTS OR MSGS.