As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START R ALPHA VANE CAUTION ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED R/H AOA VANE REF AMM 34-21-05/401. 4 C/B'S OPENED, TAGGED, AND RESET. ALL OP AND LLM TESTS PASS. R ALPHA VANE LIGHT REMAINS EXTINGUISHED DURING TESTING.