As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L IDG DISCONNECT. HAVE MX MSG 24-31631IDG (L) FREQ IS LOW AND MX MSG 24-31551 IDG (L) SHOWS LOW OIL PRESSURE. IDG FILTER CLOGGED WITH SMALL METALLIC FLAKES. FLUSHED IDG & SERVICED AMM, IDG SHOWS BLOCKED. MEL LEFT ENG IDG INOP. REPLACED IDG PER MM. ENG RAN BY FLT CREW FOR CONFIRMATION OF IDG OPERATION, OK. ALSO REPLACED GCU PER MM.