As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SNA - SMOKE ODOR REPORTED IN CABIN DURING TAXI OUT. RIGHT ENGINE OIL CAPTION LIGHT ILLUMINATED SUBSEQUENT TO REPORTED ODOR. CREW SHUT ENGINES DOWN AND DEPLANED PASSENGERS. MAINTENANCE DISCOVERED OIL SOURCE OF SMOKE ODOR TO BE FROM FAILED RT PROPELLER DOME SEAL. REPLACED SEAL. AIRCRAFT RETURNED TO SERVICE. (X)