As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ODOR IN FLIGHT DECK AFTER LIFT-OFF. FLIGHT ATTENDANTS REPORT ODOR THROUGHOUT CABIN. LIGHT HAZE IN AFT CABIN, FORWARD LAV SMOKE DETECTOR SOUNDED. FLIGHT RETURNED TO LAS, LANDING UNEVENTFULLY. REPLACED LEFT HYDRAULIC RESERVOIR PRESSURIZATION FILTER/CHECK VALVE ASSEMBLY FOR LEAKING. CLEANED AIRLINES AND INSPECTED HEAT EXCHANGERS. PERFORMED DUCT BURNOUT PROCEDURE, CHECKS OK.