As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE BLEED FAULT IN FLIGHT. THE ENGINE BLEED WAS RESET SUCCESSFULLY IAW QRH 02.02A. PFR SHOWS AIR ENG 1 BLEED SFO CLOSED FAULT WITH FAILURE MESSAGE. PRESSURE REGULATOR VALVE. R & R PRV IAW AMM 35-11-52-790-001-A. LEAK CHECKED WITH NO DEFECTS NOTED.