As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2392, AUTOFEATHER ARM LIGHT FAILED TO ILLUMINATE ON TAKEOFF. MAINTENANCE INTERROGATED CDS. FOUND FAULT CODE 64 CH A. CLEARED FAULTS. PERFORMED OPS TEST, AUTOFEATHER SYSTEM IAW 61-20-00-710-805. NO DEFECTS NOTED. PERFORMED GROUND RUN AT T/O POWER. A/F SYSTEM ARMED OK. NO FURTHER FAULTS FOUND. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.