As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG "LIMIT PROTECTION LIGHT " ON PEDESTAL AND EICAS MSG DISPLAYED. REPLACED NR 1 ENGINE EEC IAW AMM. MR73237 ON 26 OFF 2. IDLE RUN AFTER 30 SECONDS INCREASES IN FF 1.6 AND N2 73 PERCENT ON OWN. NOW HAVE P PMA EEC AND S PMA EEC MSGS ON EPCS. EEC NO HELP. REPLACED L-PDIU REF MM. BITE CHK NO FAULT. RAN ENGINES FOR HI POWER ASSURANCE & ALSO IDLE RAN BOTH ENGINES. PARAMETERS NORMAL, NO MSG .