As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI IN WE SHUT DOWN THE RIGHT ENGINE AS WE ENTERED THE RAMP ALMOST IMMEDIATELY THER WAS A SIGNIFICANT ODOR. IT WAS A STRONG SMOKEY BURNING SMELL. R/R #2 THRUST REV ACTUATOR PER B737 AMM 78-31 (419249). R/R BOTH RECIRCULATION FILTERS IAW B737 AMM 21-25. (LOG 7603876 - AIRCRAFT WAS GROUNDED).