As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT GENERATOR FAILED, RETURNED TO FIELD. CHECKED IDG OIL REF AMM 12-13-03. REPLACED NR 1 GCU REF AMM 24-22-02. RAN ENGINE, GENERATOR DID NOT COME ON LINE. PLACED ORIGINAL GCU BACK IN ACFT IAW AMM 24-22-02. REPLACED IDG PER MM, OPS CHECKED NORMAL.