B737-300
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 233; Flight Crew Type 12000
Human-Machine Interface
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented; Flight Crew Landed in Emergency Condition; General Maintenance Action
Aircraft; Human Factors
During descent we experienced an A System Hydraulic failure. We ran the appropriate checklists and landed uneventfully. After arriving at the gate during post flight; after rechecking the landing performance calculations; we determined we were slightly over our approach climb weight for a flaps 40 landing.
Low altitude Hydraulic System A failure within high workload terminal area; completed QRH and landed without incident.  Upon post-flight debrief and review of our actions; we noticed that we were slightly overweight for the approach climb at flaps 40.Slow down and sight the entire performance page not just the runway data. This all happened really quick and in close proximity to the airport.  In hindsight; a vector should have been asked for to allow us to slow down a bit and be more thorough.
B737 flight crew experiences an A system hydraulic failure during approach. The approach is continued to landing but post flight review determines that the aircraft was overweight for a flaps 40 landing.