As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE BLEED AIR REGULATOR VALVE BODY IS CRACKED AT ELECTRICAL CONNECTOR ATTACHMENT. GROUNDED - YES. REMOVED NR 1 ENG BLEED AIR REGULATOR REF AMM 36-11-03-000-801. INSTALLED NEW BLEED AIR REGULATOR. NO DEFECTS NOTED. REF AMM 36-11-03-400-801.