As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOFEATHER TEST FAILED ON THE NR 1 ENGINE. REMOVED FROM SERVICE. INTERROGATED CDS. FOUND FAULTS 204A/B. CLEARED FAULTS. PERFORMED OPERATIONAL TEST OF THE AUTOFEATHER SYSTEM IAW AMM 61-20-00-710-805. NR 1 ENGINE PASSED, NO FAULTS IN CDS. RETURNED TO SERVICE.