Understanding the Basics of Airplane Hydraulic Systems

Airplane hydraulic systems are the unsung heroes of modern aviation, responsible for powering critical components that enable safe and reliable flight. From controlling the movement of flight control surfaces to operating landing gear and brakes, these intricate systems play a vital role in the overall performance and safety of an aircraft.

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We specialize in Test, Repair, and Overhaul of Hydraulics, Pneumatics, Fuel, Electromechanical, and Power Generation Components. Offering Specialized Services such as in-house NDT, Balancing, and Machining in order to provide our customers with quality components.

Hydraulic System Airplane Hydraulic System aircraft Hydraulic Power ensure component

About Overhaul Accessory Inc

Hydraulic System Airplane Hydraulic System aircraft Hydraulic Power ensure component

Understanding the Basics of 
Airplane Hydraulic Systems
Airplane hydraulic systems are the unsung heroes of modern aviation, 
responsible for powering critical components that enable safe and reliable 
flight. From controlling the movement of flight control surfaces to 
operating landing gear and brakes, these intricate systems play a vital role 
in the overall performance and safety of an aircraft. In this comprehensive 
guide, we will explore the key aspects of airplane hydraulic systems, 
including their components, maintenance, and the importance of proper 
inspection and overhaul.
Airplane Hydraulic System Overview
1
Hydraulic Power Generation
At the heart of an airplane's hydraulic 
system lies the hydraulic power 
generation unit, typically a pump 
driven by the aircraft's engines or an 
auxiliary power unit (APU). This pump 
is responsible for creating the 
necessary pressure and flow to actuate 
various components throughout the 
aircraft.
2
Distribution and Control
The generated hydraulic power is then 
distributed through a network of pipes, 
valves, and actuators to the various 
systems that require it. This 
distribution system is carefully 
designed to ensure efficient and 
reliable delivery of hydraulic power 
where it's needed most.
3
Redundancy and Backup
Recognizing the critical nature of 
hydraulic systems, modern aircraft are 
equipped with multiple redundant 
systems and backup power sources. 
This redundancy ensures that even in 
the event of a single system failure, the 
aircraft can still maintain control and 
complete its intended flight safely.
Key Components of Airplane Hydraulic 
Systems
Hydraulic Pumps
The heart of the hydraulic 
system, these pumps 
generate the necessary 
pressure and flow to power 
various aircraft components. 
They can be driven by the 
aircraft's engines or an APU, 
and are designed to maintain 
consistent performance even 
under demanding conditions.
Hydraulic Reservoirs
Hydraulic reservoirs serve as 
the storage and supply points 
for the hydraulic fluid, 
providing a buffer to 
accommodate changes in 
fluid volume and ensure a 
consistent supply of hydraulic 
power.
Actuators and Valves
These components translate 
the hydraulic power into 
mechanical motion, 
controlling the movement of 
flight control surfaces, landing 
gear, and other critical 
systems. Actuators and valves 
are engineered to be reliable, 
responsive, and capable of 
withstanding the high 
pressures and stresses 
involved in aircraft operations.
Importance of Proper Maintenance and 
Inspection
1
Ensuring Reliability
Proper maintenance and 
regular inspection of an 
airplane's hydraulic 
system are essential to 
ensure its reliable and 
consistent performance. 
This helps prevent 
unexpected failures and 
keeps the aircraft 
operating safely within its 
design parameters.
2
Extending Service 
Life
Regular maintenance, 
such as fluid changes, 
component overhauls, 
and leak inspections, can 
significantly extend the 
service life of a hydraulic 
system. This helps 
reduce the overall cost of 
ownership and ensures 
the system remains in 
peak condition for the life 
of the aircraft.
3 Compliance with 
Regulations
Maintaining an airplane's 
hydraulic system in 
accordance with 
manufacturer 
recommendations and 
regulatory requirements 
is not only a matter of 
safety, but also a legal 
obligation. Proper 
maintenance and 
documentation help 
ensure the aircraft 
remains airworthy and 
compliant with all 
applicable standards.
About Overhaul Accessory, Inc.
Industry Leaders
Overhaul Accessory, Inc. is a premier provider 
of aircraft maintenance and overhaul 
services, specializing in hydraulic system 
components. With decades of experience 
and a team of highly skilled technicians, we 
are recognized as industry leaders in the field 
of airplane hydraulic system maintenance 
and repair.
Commitment to Quality
At Overhaul Accessory, Inc., we are 
committed to delivering the highest quality 
of service and ensuring the safety and 
reliability of the aircraft we work on. Our 
state-of-the-art facilities and rigorous quality 
control procedures ensure that every 
component we service meets or exceeds the 
strictest industry standards.
Customer-Centric Approach
We understand that the maintenance and 
overhaul of an aircraft's hydraulic system is a 
critical aspect of aviation safety and 
performance. That's why we take a customer-
centric approach, working closely with our 
clients to develop customized solutions that 
meet their unique needs and requirements.
Regulatory Compliance
As an FAA-approved repair station, Overhaul 
Accessory, Inc. is committed to maintaining 
full compliance with all relevant aviation 
regulations and standards. Our dedication to 
regulatory compliance ensures that the work 
we perform on your aircraft's hydraulic 
system is safe, reliable, and meets all 
applicable requirements.
Contact Us
Phone
+1 (305) 558 4540
Email
info@overhaulaccesso
ryinc.com
Address
7319 NW 79th Terrace, 
Medley, FL 33166 USA
Website
www.overhaulaccesso
ryinc.com
We welcome the opportunity to assist you with all your airplane hydraulic system maintenance and 
overhaul needs. Please don't hesitate to reach out to our team of experts for more information or to 
schedule an appointment. We look forward to working with you and ensuring the safe and reliable 
operation of your aircraft.