B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 240; Flight Crew Total 15000; Flight Crew Type 5500
Aircraft Equipment Problem Less Severe
Flight Crew FLC complied w / Automation / Advisory
Aircraft
We did not deviate from any ATC instructions during this event. We both felt that the situation was handled in a timely and efficient manner and that our decisions that were made were the safest course of action to take to prevent any additional surprise during the flight.
Before descending the Master Caution annunciated; and we noticed that our Number One Engine Hydraulic Pump light was illuminated. We ran the checklist for that light. We also noticed that the A System Hydraulic reservoir was down to 15%. The Captain discussed the likelihood of us having to complete the System A Loss of Hydraulic pressure checklist and we reviewed that checklist. I took control of the aircraft while the Captain communicated our situation with ATC; the cabin crew; the company; and our passengers. After he finished communicating; he took control of the aircraft and I completed the Approach Descent Checklist; and then the Loss of System A Hydraulic Pressure Checklist. The landing was uneventful with emergency vehicles meeting the aircraft. The number one thrust reverser would not stow; so I informed operations that we would be running both engines until we stopped at the gate.
B737 flight crew reports a master caution for the number one engine hydraulic pump light was illuminated. The QRH is complied with and the A system hydraulic reservoir is noted to be down to 15 %. A normal landing ensues but the number one engine thrust reverser will not stow after landing.