As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND NR 2 ENGINE MESSAGE 73-31372. UPPER EGT SECTORS READING HIGH FLT LEG 2. ACFT GROUNDED. RAN ENGINES AT GROUND IDLE 5 MINUTES TO STABILIZE. ACCESSED T49.5 INPUT SCREEN ON CDU. VERIFIED NO FLUCTUATING. STOPPED ENGINES. VERIFIED SECTOR 1 AND 4 T49.5 PARAMETER WAS NOT MORE THAN 100 DEGREES ABOVE SECTOR 2 AND 3. IAW FAULT ISOLATION MANUAL, NO FAULTS NOTED. ALSO PERFORMED EEC TEST, TASK 73-21-00-700-804-FOO. NO FAULTS FOUND.