As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF BLEED AIR HEALTH CHECK T/C NG-36WC-00001, FOUND THE NR 1 ENGINE PRSOV LEAKING AT DIAPHRAGM SPLIT LINE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE PRSOV IAW AMM 36-11-04. LEAK & OPS CHECKED GOOD. T/C NG-36WC-00001 CHECKED GOOD.