6517108-4 - Yactayo Coupling Assembly for Citation Aircraft

6517108-4 – Textron Aviation OEM Coupling Assembly

Available now on the Airparts.aero Marketplace.

Overview

The Textron Aviation 6517108-4 is a genuine OEM, flight-critical coupling assembly, engineered specifically for the aileron trim tab control system on the Cessna Citation 500 series of business jets. This is not a simple fluid coupling or standard fastener; it is a precision-machined mechanical linkage component designed to transmit minute control inputs to the aileron trim tab. Fabricated from high-strength aluminum alloy and manufactured to exacting tolerances, the 6517108-4 ensures a positive, zero-slop connection, which is essential for precise roll trim and stable flight characteristics.

Key Features

• Primary Flight Control Component: A critical linkage within the aileron trim system. Its integrity and dimensional accuracy are directly related to the pilot's ability to accurately trim the aircraft in the roll axis.
• High-Strength Aluminum Construction: Machined from a high-grade, lightweight aluminum alloy. This provides the necessary tensile and compressive strength to act as a control linkage without adding unnecessary weight to the flight control system.
• Precision Machined Threads: Features precisely machined internal threads on both ends to accept the mating control rods or actuator ends. This ensures a secure, tight connection that eliminates "slop" or "play," which could otherwise lead to trim flutter or imprecise control.
• Corrosion-Resistant Finish: Typically anodized or otherwise surface-treated to provide robust protection against corrosion, ensuring a long and reliable service life within the wing structure.
• Genuine Textron OEM Part: As a genuine factory component from Textron Aviation, it guarantees perfect fitment, certified material strength, and conformance to the rigorous quality standards of the original aircraft Type Certificate.

Technical Specifications

• Part Number: 6517108-4
• Component Type: Mechanical Control System Coupling Assembly
• Primary Application: Aileron Trim Tab Control Linkage
• Material: High-Strength Aluminum Alloy
• Features: Internally threaded, hexagonal body for wrench application.
• Certification: FAA Production Approval

Aircraft Compatibility

The 6517108-4 is a specific factory part for the flight control systems of the legacy Cessna Citation 500 series. It is imperative to consult the specific aircraft's Illustrated Parts Catalog (IPC) for final verification of applicability.

• Primary Aircraft Models:
  • Cessna Citation 500
  • Cessna Citation I (501)
  • Cessna Citation II (550)

Applications

The 6517108-4 has a singular, flight-critical application:

• Aileron Trim Actuation: Serves as the connecting link within the aileron trim tab control rod assembly, translating the motion of the trim actuator into precise movement of the trim tab surface.
• Flight Control Maintenance: A key component to inspect for any signs of wear, thread damage, or corrosion during detailed inspections of the flight control system. It is replaced to eliminate any play in the trim system.

Why Choose 6517108-4?

The precision of an aircraft's flight control system is paramount. Any "slop" or play in a trim system can make an aircraft difficult to trim for stable, hands-off flight, increasing pilot workload and fatigue. In a worst-case scenario, a failed linkage component could lead to a loss of trim control or trim flutter. Using a genuine Textron Aviation 6517108-4 OEM coupling is the only way to ensure the component has the certified material strength and precise tolerances to maintain the integrity of the flight control system as designed by the manufacturer. For a part this critical to control, there is no substitute for a genuine OEM component.

Order Your 6517108-4 Coupling Assembly Now

Ensure the precision and integrity of your aircraft's flight control system with genuine Textron Aviation OEM components. Visit Airparts.aero to order your 6517108-4 coupling assembly today.

The 6517108-4 coupling assembly is a key element in translating the pilot's input from the cockpit trim wheel into a mechanical action. The aileron trim tab is a small, hinged surface on the trailing edge of the aileron. Deflecting this tab creates an aerodynamic force that moves the entire aileron in the opposite direction, which in turn causes the aircraft to roll. The 6517108-4 acts as a turnbuckle or connector in this linkage, allowing for precise rigging and adjustment by maintenance technicians. Its rigid, zero-play design ensures that even the smallest trim input from the pilot results in a direct and predictable movement of the trim tab, allowing for very fine adjustments to the aircraft's roll attitude.

Note: This is a flight-critical flight control system component. Installation, rigging, and adjustment must be performed by a certified A&P mechanic in strict accordance with the current Textron Aviation maintenance manual for the specific aircraft model. All maintenance actions on the flight control system must be documented and may require an independent inspection before return to service.