As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE DUCT PRESSURE INDICATION IS GREATER THAN 10 PSIG WITH BLEED SWITCH IN OFF POSITION. GROUNDED - YES. REMOVED/REPLACED/TESTED NR 1 ENGINE BLEED AIR REGULATOR PER AMM 36-11-03-000/400-801. NR 1 ENGINE DUCT PRESSURE IS WITHIN NORMAL RANGES PER AMM 36-11-00-710-801. GROUND VERIFICATION REPAIR CONFIRMATION SUCCESSFUL.