As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE EEC C1 STATUS. PERFORMED BITE ON L ENG PIMU, FOUND EEC-CPU FAIL FAULT. PERFORMED FIM 71-01 FT A81 TO ITEM B1. REMOVED AND REPLACED THE STATOR AC GENERATOR IAW AMM 73-21-02. MESSAGE WAS STILL DISPLAYED. REMOVED AND REPLACED THE LT AC GENERATOR ROTOR IAW AMM 73-21-02 AND STATUS MESSAGE DID NOT GO AWAY. T/S DOWN TO LT ENGINE EEC UNIT IAW FIM 71-01 FT 810. REMOVED AND REPLACED THE LEFT ENGINE EEC IAW AMM 73-21-15. OPS CHECKED GOOD IAW AMM 71-00-00.