As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DAILY SYSTEM CHECK OF THE AUTOFEATHER SYSTEM, AF TEST "ABORT" OBSERVED ON DISPLAY. INTERROGATED CDS NO FAULTS CHECKED. CIRBUIT BREAKERS FOUND K4 RT C/B UP. RESET K-4 REF GPM 9.2.2.1. RAN ENGINES K-4 C/B, RIGHT STAYED SET. C/W AUTO FEATHER TEST AMM TASK 61-20-00-710-805, TEST PASSED. NO FURTHER DEFECTS. RETURNED TO SERVICE.