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What is STA on Boeing 737? (Station)

The Station, abbreviated as STA, is an important term used in aircraft manufacturing, including the Boeing 737. It refers to a specific location or point along the fuselage of an aircraft where measurements and references are taken to ensure proper alignment and assembly of components. The concept of “stations” is crucial during the construction and manufacturing processes, as it helps engineers and technicians maintain consistency, precision, and quality throughout the production phase.

Let’s delve into the significance of stations on the Boeing 737 and understand how they contribute to the overall structure and performance of this iconic aircraft.

Station in Boeing 737 Manufacturing

In the context of the Boeing 737, a station refers to a specific point on the aircraft’s fuselage structure, measured in inches aft (towards the rear) of a fixed reference point on the nose of the aircraft. The fuselage is divided into various stations, indicated by numbers such as STA 260, STA 400, STA 520, and so on. These numbers correspond to specific locations along the length of the aircraft.

Each station on the Boeing 737 serves as a reference point for the manufacturing team. Engineers and technicians use these stations to precisely align components, such as frames, ribs, panels, and other structural elements, during the assembly process. The measurements and dimensions of various parts are carefully calculated and designed to fit within the specified stations.

Importance of Stations in Aircraft Assembly

The use of stations in aircraft assembly plays a critical role in ensuring structural integrity, aerodynamic performance, and overall safety. Here are some key reasons why stations are essential:

1. Consistency and Precision

By defining specific stations along the fuselage, Boeing establishes consistent reference points for the alignment and attachment of various components. This standardized approach facilitates accuracy and precision during assembly, reducing the risk of misalignments or inconsistencies that could compromise the structural integrity of the aircraft.

For example, when installing frames or ribs, technicians refer to the designated station numbers to determine their exact positions. This ensures that each component is placed correctly and in accordance with the aircraft’s design specifications.

2. Quality Control

Stations serve as critical checkpoints for quality control measures. Throughout the assembly process, inspectors can use these points to verify that the components are aligned correctly and the overall structure meets the required standards.

Inspectors may use precision tools, such as laser trackers or measurement devices, to ensure that the dimensions and positions of components are within the acceptable tolerance range. This meticulous attention to detail helps identify any deviations or discrepancies early on, enabling prompt corrective actions to maintain the highest quality standards.

3. Streamlined Production

The concept of stations also contributes to a streamlined and efficient production process. By using predetermined reference points, manufacturers can optimize their workflows and reduce the time required for assembly.

With the help of stations, technicians can quickly identify where each component should be installed. This eliminates guesswork and minimizes errors, resulting in faster and more efficient assembly operations. Additionally, the use of stations allows for easier collaboration between different teams and departments, as everyone is working with a common framework and understanding.


Stations play a crucial role in the construction and manufacturing of the Boeing 737 aircraft. By providing standardized reference points along the fuselage, they ensure consistency, precision, and quality throughout the assembly process. These stations enable engineers and technicians to align components accurately, maintain structural integrity, and achieve optimal aerodynamic performance. With their contribution to streamlined production and efficient workflows, stations are a vital aspect of Boeing’s aircraft manufacturing process.

If you’re interested in learning more about the Boeing 737 and its various components and systems, you can visit the official Boeing website here.

For More: What is MAN on Boeing 737? (Manual)

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