As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING BLOCKING IN AT THE GATE, THE CREW NOTICED SMOKE IN THE FLIGHT DECK. THE AIRPLANE WAS REMOVED FROM SERVICE (GROUNDED). THE CAUSE OF THE SMOKE WAS THE LEFT ENGINE OIL PRESSURE ANNUNCIATOR THAT FAILED INTERNALLY. THE ANNUNCIATOR ASSEMBLY WAS REPLACED.