As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L ENG CONTROL EICAS MSG, RTB PERFORMED BITE ON L PIMU FOUND FAULT 155-23 A/B AND 353-14 CH A. SUSPECT HARNESS 012194. REMOVED AND REPLACED W7 HARNESS PER AMM. RAN ENGINE TWICE. MESSAGE DOES NOT COME. CONTACT MCC. NO FURTHER ACTION REQUIRES. A/C OK FOR SERVICE AT THIS TIME.