What was found
AIRCRAFT RETURNED TO ORD, DUE TO LEFT ENGINE GENERATOR PROBLEM. REPLACED LEFT (NR 1) INTEGRATED DRIVE GENERATOR (IDG). THE IDG HAD AN INTERNAL DIODE FAILURE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT RETURNED TO ORD, DUE TO LEFT ENGINE GENERATOR PROBLEM. REPLACED LEFT (NR 1) INTEGRATED DRIVE GENERATOR (IDG). THE IDG HAD AN INTERNAL DIODE FAILURE.