As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: FUMES REPORTED FROM CABIN AND DETECTED IN FLIGHT DECK ON DEPARTURE FROM ATL, DISAPATED AFTER A FEW MINUTES, AND RETURNED TO GROUND AT CLT. REPLACED GREEN HYDRAULIC SYSTEM 90 DEGREE ELBOW AT AFT BULKHEAD PER AMM 29-11-00. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECKS.