As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GE DIAGNOSTICS REPORTS NR 1 ENGINE NR 4 BEARING LEVEL 2 MESSAGE EXISTS AFTER LAST DATA ERASURE. REMOVED AND REPLACED AVM REF 77 31 03 TO STEP 5 (B)(1). ACCOMPLISHED REMAINING STEPS PER MM 73 31 03 AND 77 31 00 970 805 F00. S/N AC43765 PUT ON SOS. VERIFIED PREVIOUS ACCOMPLISHMENT OF STEP 5 (B)(1) IAW 77 00 00 750 803 F00.