As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3518 -SMOKE/FUMES/DE- CREW REPORTED OZONE SMELL/FUMES IN FLIGHT DECK AND DONNED OXYGEN MASKS ALONG WITH DECLARING AN EMERGENCY WITH ATC. CORRECTIVE ACTION: CONFIRMED NO ODORS OR FUMES FOUND IN FLIGHT DECK DURING ENGINE AND APU RUN.