As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS-DIVERTED FLIGHT- EN ROUTE FROM PHX TO GEG THE RT AIR CONDITIONING PACK FAILED A FL350, RT BLEED DUCT PRESSURE WENT TO 0 AND THE FLIGHT DIVERTED TO LAS. MAINTENANCE TROUBLESHOOTING FOUND THE BLEED DID NOT RESPOND TO THE SWITCH WHEN TURNED ON. THE NR 2 ENGINE BLEED AIR REGULATOR WAS REPLACED THE THE BLEED AND RT PACK FUNCTIONED NORMALLY.