As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD-HPN - FLT 6281 - FLIGHT DIVERTED TO SWF, DUE TO THE LOSS OF HYDRAULIC PRESSURE IN THE LT AND RT PUMPS. AN EMERGENCY WAS DECLARED AND ACFT LANDED AT SWF WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE HYDRAULIC LINE RUNNING FROM THE PUMP TO THE BULKHEAD. ACFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (W)