As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT 1633 - EN ROUTE FROM IAH-PHL, THE ''A'' HYDRAULIC SYSTEM LOW PERSSURE LIGHT ILLUMINATED ALONG WITH ''A'' HYDRAULIC QUANTITY READING BELOW QUARTER. FLIGHT DIVERTED TO CLT AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE DRIVEN HYDRAULIC PUMP PER MM 29-15-12. OPS CHECK AND LEAK CHECK GOOD. (M)