As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORTED A CHEMICAL / SWEET ODOR IN THE CABIN DURING CRUISE AND DESCENT. MAINTENANCE FOUND THE APU INTAKE WAS SATURATED WITH OIL ALONG WITH AN OIL LEAK COMMING FROM THE LOAD CONTROL. MAINTENANCE REPLACED THE APU TASK CARD 26L31049003 AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK WITH NO ODORS NOTED.