As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUMES EVENT IN FORWARD CABIN REPORTED BY ALL THREE FLIGHT ATTENDANTS. AIR TURN BACK TO KIAD. TROUBLESHOT PER TSM 71-00-00-810-802-A. RAN PACKS, ENGINES, AND APU. NO FUMES AT THIS TIME. PERFORMED BORESCOPE INSPECTIONS OF ENGINES FOR PRESENCE OF OIL WETTING. NONE FOUND. AIRCRAFT OK FOR SERVICE