As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT FROM OAMS TO OAIX THE FLIGHT CREW EXPERIENCED FUMES IN THE FLIGHT DECK. O2 MASKS WERE DONNED BY THE CREW & THE QRH WAS COMPLIED WITH. THE ELECTRICAL SYSTEMS WERE CHECKED WITH NO DISCREPANCIES NOTED. ENG BLEED VLVS WERE CLOSED & THE FUMES SEEMED TO DISSIPATE. THE FLIGHT WAS COMPLETED WITHOUT FURTHER INCIDENT. RAN ENGS WITH HEAT ON & OFF WITH NO DEFECTS NOTED IAW AMM 71-00-00.