As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR - FLT 4253 - THE CREW REPORTED THAT THEY LOST NR 1 HYDRAULIC SYSTEM PRESSURE. THE AIRCRAFT DIVERTED INTO CLEVELAND AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE NR 1 HYDRAULIC PUMP PRESSURE LINE IAW EMB145 MM 29-10-00. MAINTENANCE ALSO BLEED THE HYDRAULIC SYSTEM IAW 29-10-06. OPERATIONAL CHECKS WERE GOOD. THE AIRCRAFT WAS RELEASED FOR SERVICE. (M)