As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FLIGHT CREW REPORTED THAT THE AUTOFEATHER ARMING LIGHT FOR THE RT A/F SYSTEM WAS NOT ILLUMINATING. SYSTEM TEST WAS OK. MAINTENANCE REPLACED THE RT HIGH PRESSURE SWITCH FOR RESPONSIBLE FOR TURNING THE LIGHT ON. A/C SYSTEM WAS TESTED AND FOUND OK.