As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT 1754 - CLIMBING THROUGH 12,000 FT, THE LEFT GENERATOR BECAME INOPERATIVE. THE APU WAS ON MEL. THE AIRCRAFT RETURNED TO THE FIELD WITHOUT INCIDENT. MAINTENANCE REPLACED THE LEFT GENERATOR AND CSD. THE APU GENERATOR AND CONTROL UNIT WERE ALSO REPLACED. BOTH SYSTEMS THEN OPERATED NORMALLY. (M)