As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPOARTED DURING CRUISE FLIGHT GETTIG A BAD ODOR IN THE CABIN. AIRCRAFT WAS RETURNED TO DEPARTURE. AIRCRAFT WAS LANDED SAFELY AND AN EMERGENCY EVACUATION WAS DONE ON THE TAXIWAY. REPLACED APU IAW WORK CARD 49-800-05. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (K)