As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RTFL DUE TO A GENERATOR PROBLEM. EICAS MESSAGE FOR RIGHT GENERATOR DRIVE DISPLAYED WHILE CLIMB OUT AT 10000 FT. THE ROOT CAUSE OF THIS ACTION BY THE PILOT WAS DUE TO ILLUMINATION OF GENERATOR DRIVE LIGHT AS A RESULT OF A DISCONNECTED GENERATOR DRIVE.