As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE DRIVEN HYD PUMP DOES NOT DEPRESSURIZE WHEN SWITCH IS TURNED OFF. REPLACED NR 1 ENGINE DRIVEN HYDRAULIC PUMP PER MM 29-11-11-000-802-002-2 AND MM 29-11-11-400-802-002-2. PERFORMED NR 1 ENGINE DRIVEN HYDRAULIC PUMP INSTALLATION TEST REF MM 29-11-11-400-802-002-2 STEP G CHECKS GOOD.