As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANTS COMPLAINED ABOUT FUMES IN F/A CREW REST AREA. TURNED OFF RECIRCULATION FANS AND ODOR DISSIPATED. MAINTENANCE DISCOVERED THE ODOR COMING FROM HEATER. REPLACED SAME. RAN PACKS AND RECIRCULATION FANS WITH NO FURTHER FINDINGS.