As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG HAS MAINTENANCE MESSAGE 73-30311, "START SWITCH SIGNAL AND BUS DATA DISAGREE" ACFT GROUNDED. ACCOMPLISHED FIM 73-24 TASK 813. INITIAL EVALUATION SHOWS NO CURRENT FAULTS. PERFORMED EEC TEST FOR NR 1 ENG AMM TASK 73-21-00-700-804-F00. TEST PASSED. NO MAINTENANCE MESSAGES LOGGED.