As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RDM FLIGHT 2128, DIVERTED TO PDX DUE TO WEATHER NR 2 BYPASS DOOR SWITCH WILL NOT LATCH IN THE OPEN POSITION. REPLACED BYPASS CONTROL SWITCH IAW HORIZON AIR EO 2-30-04B. NO PARTS REPLACED. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.