As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NR2 ENGINE PROP WENT INTO FEATHER DURING CLIMBOUT. RH BETA LIGHT ON IN COCKPIT. BETA SWITCH ON ENGINE WAS STUCK INTERNALLY IN CLOSED POSITION. VISUALLY SWITCH LOOKED OK. BUT LIGHT WOULD NOT EXTINGUISH UNTIL SWITCH WAS DISCONNECTED FROM THE AIRCRAFT WIRING. SWITCH REPLACED.