As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINTENANCE MESSAGE 31-52601 IOM (M003) IN LEFT AIMS HAS A DISCRETE INPUT FAULT SHOWN ON MAT EXISTING FAULT PAGE. ALSO LRM AIMS CABINET SHOWN ON CH 31 SMT PAGE. TRIED AIMS MODULE RESET, AND POWER RESET. NO HELP. ALSO UNABLE TO RELOAD SOFTWARE INTO M003 MODULE. REPLACED LEFT IOM003 REF MM. CHECKED SOFTWARE OK. RESET LEFT AIMS OK. NO FAULT FOUND. NO EXISTING FAULT.