As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - ON ACFT ARRIVAL, FOUND ENG A/O VALVE & EEC C1 MESSAGE. REGARDING THE MESSAGE, PIMU BITE TEST CARRIED OUT IAW FIM 71-PIMU BITE PROCEDURE AND PIMU GROUND TEST CARRIED OUT IAW AMM 77-35-00. NO FAULT DETECTED AND FAULT MESSAGES ARE ERASED BY ITSELF. OK FOR FURTHER SERVICE.