What was found
DURING FLIGHT 3641, AIR LOW PRESSURE ON YELLOW HYDRAULIC SYSTEM ILLUMINATED. AIR RETURN TO MSP. MAINTENANCE REPLACED PSI REGULATOR VALVE. OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING FLIGHT 3641, AIR LOW PRESSURE ON YELLOW HYDRAULIC SYSTEM ILLUMINATED. AIR RETURN TO MSP. MAINTENANCE REPLACED PSI REGULATOR VALVE. OPS CHECK GOOD.