What was found
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS COMPLAINED OF BURNING RUBBER SMELL IN CABIN AND PASSENGER COMPLAINTS ABOUT BREATHING. IN COCKPIT WE SMELLED DEICE FLUID. RETURNED TO CLT. DECLARED EMERGENCY. AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS COMPLAINED OF BURNING RUBBER SMELL IN CABIN AND PASSENGER COMPLAINTS ABOUT BREATHING. IN COCKPIT WE SMELLED DEICE FLUID. RETURNED TO CLT. DECLARED EMERGENCY. REMOVED AND REPLACED APU GENERATOR "O" RING IAW AMM 24-23-51. ACCOMPLISHED J/C 26L00021001, 26L00021002, 26L00021004.