As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - ON FLIGHT 2048, NR 2 PROPELLER FAILED AUTOFEATHER TEST. FEATHER LIGHT DID NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED AUTOFEATHER CONTROL RELAYS 6121-K6, 6121-K8. COMPLIED WITH AUTOFEATHER TEST BUT FEATHER STILL FAILED TO ILLUMINATE. REPLACED NR 2 TSCU IAW PWC EMM 72-01-10 PG 420 PARA 7A-B. C/W TC 9720019. OPERATIONS CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.