As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC GREEN SYSTEM LOW PRESSURE FAULT. SYSTEM SHOWS 2950 PSI. BUT WE HAD AMBER ILLUMINATED ON GREEN SYSTEM. FLIGHT CONTROL PAGE SHOWED AMBER ON ALL GREEN ITEMS. BSCU-1 FAULT SHOWN. REMOVED AND REPLACED BSCU AS PER AMM 32-42-34-400-001-A , SYSTEM OPS CKECKED GOOD.