As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG EXPERIENCED A 'SILENT SURGE'. PLEASE REPLACE THE EEC MR73412 PCN 480-9191. REF MM 73-21-04 P4XX. PUT EG ALERT TAG ON REMOVED EEC. WRITE RMVL REASON AS "ROUTE TO HS FOR PB SENSORS RPLMNT. REF HS SB EEC131-73-62 DUE SURGE". REPLACED LT ENG EEC PER MM, OPS CK'S GOOD.