As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT GEN FAILURE, RTFL SWAPPED GCU. NO HELP. THE IDG RELATED TO THE RTFL WAS CONFIRMED TO HAVE A HARD FAULT RELATED TO ONE OF THE ROTOR DIODES. THE FAILURE OF THE DIODE PREVENTS THE UNIT FROM PRODUCING ELECTRICAL POWER BECAUSE IT PREVENTS THE ROTOR FROM PRODUCING THE REQUIRED EXCITATION MAGNETIC FIELD. REPLACED IDG, LEAK CHECK AND RESERVICED AT ENG RUN.