What was found
TAKE OFF FRO 28L-CLIMBING THROUGH 3,000' LEAD FLIGHT ATTENDANT REPORTED SMOKE IN CABIN, DECLARED EMERGENCY, RETURNED TO PIT, COMPLETED EMERGENCY CHECK LIST. CORRECTIVE ACTION: INSPECTED, BOTH A/C PACKS DURING FULL POWER TAKE OFF RUN. ENGINE RUN PERFORMED TWICE. MAINTENANCE INSPECTED LAVATORIES, AFT FLIGHT ATTENDANT OVERHEAD PANELS AND ALL CABINS BALLASTS. REMOVED AND REPLACED RIGHT AIR CYCLE MACHINE. NO FURTHER DEFECTS OR SMELLS NOTED.