As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOWER ECAM INOPERATIVE SYS LGCIU 1 & REVERSER 1, WITH MX MESSAGE ENG 1 EIU & F CTL. WHILE TRYING TO TROUBLESHOOT NOTICED RELAYS CLICKING & LIGHTS FLICKERING IN FLIGHT DECK & FWD CABIN. MULTIPLE WARNINGS & INDICATIONS COMING ON & OFF. COULD NOT ISOLATE WITH APU OR EXTERNAL POWER. REPLACED CONNECTOR FOR PROX SENSOR 20GA. ACCOMPLISHED TEST OF BOTH SYSTEMS, BOTH PASSED THE TEST.