As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - AUOFEATHER FAILED TO ARM WHEN SELECTED. NOTED PREVIOUS MTX OF AUTOFEATHER SWITCH. CDS NOTED UNSUCCESSFUL TEST, PERFORMED SUCCESSFUL AUTOFEATHER TEST IAW AMM 61-20-00-805. PERFORMED 2 ENGINE STARTS W/ NO DEFECT NOTED. CDS MSGS CLEARED. RETURNED TO SERVICE. NO PARTS REPLACED.