As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ODOR/FUMES REPORTED BY ALL FOUR FLIGHT ATTENDANTS AFTER TAKEOFF. STRONGEST IN AFT CABIN, WEAKER IN FRONT. RETURNED TO CLT SHORTLY AFTER TAKEOFF. NO EMERGENCY DECLARED. CREW AND PASSENGERS DEPLANED ON GATE ARRIVAL. MAINTENANCE ACCOMPLISHED CABIN ODOR JOB. FOUND THE NR 1 ENGINE HYDRAULIC PUMP LEAKING AT MOUNTING BOLTS. SECURED BOLTS. NO LEAKS NOTED. NO ODOR NOTED.