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SP2018217 – Bombardier OEM Cabin Seat Actuation Cable Assembly
Available now on the Airparts.aero Marketplace.
The SP2018217 is a precision-engineered, high-tensile mechanical control cable designed for the cabin seating systems of Bombardier Challenger and Global series aircraft. As a critical component of the aircraft's interior "VIP" seating, this cable assembly translates the passenger's manual input from the seat-side controls to the mechanical locking and release mechanisms of the seat frame. The SP2018217 is responsible for the smooth, reliable operation of seat recline, swivel, and "tracking" (fore/aft movement) functions, ensuring that the luxury seating remains fully adjustable yet securely locked during takeoff, landing, and turbulence.
Constructed with a multi-strand stainless steel core and housed within a low-friction, flexible outer conduit, the SP2018217 is built to withstand thousands of actuation cycles without stretching or "binding." This cable is a "no-backlash" design, ensuring an instantaneous and tactile response when the passenger operates the seat lever or button.
Key Features
Corrosion-Resistant Stainless Core: Utilizes high-count stranded stainless steel wire for maximum flexibility and resistance to the humidity and cleaning chemicals common in aircraft cabins.
Low-Friction Liner: The outer conduit is lined with a specialized polymer (typically PTFE or Nylon) to reduce the coefficient of friction, ensuring a smooth "pull" and preventing the cable from sticking.
Precision Swaged Terminations: Features factory-swaged ball or "Z-bend" ends that interface perfectly with Bombardier seat-actuation pulleys and levers, eliminating the risk of cable slippage.
Adjustable Tension Housing: Typically includes a threaded barrel adjuster at the termination point, allowing maintenance technicians to fine-tune the cable tension for a "zero-play" feel.
Fire-Retardant Outer Sheath: The external conduit is manufactured from flame-resistant materials that meet the stringent FAR 25.853 flammability requirements for aircraft interior components.
Technical Specifications
Part Number: SP2018217
Manufacturer: Bombardier Aerospace (OEM) / Often produced by Enersys or Collins
Component Type: Mechanical Push-Pull / Pull-Only Control Cable
Material (Core): Stainless Steel (CRES)
Material (Conduit): Reinforced Polymeric Sheath
Length: Calibrated for specific Bombardier VIP seat geometry
Certification: FAA-PMA / Part of the Original Aircraft Interior STC
Compliance: FAR 25.853 (Flammability)
Aircraft Compatibility
Bombardier Challenger Series: 300, 350, 604, 605, 650.
Bombardier Global Series: 5000, 6000, Express.
Note: Cabin seat cables are often unique to the seat's position (e.g., Forward-Facing vs. Divan). Always verify the SP2018217 against your aircraft's Interior Illustrated Parts Catalog (IIPC) or the seat manufacturer's CMM to ensure the length and throw match your specific cabin layout.
Applications
The SP2018217 is utilized for Cabin Interior Ergonomics. Its primary roles include:
Seat Recline Control: Releasing the gas-strut lock to allow the seat back to tilt.
Swivel & Track Release: Disengaging the floor-track locks to allow the seat to rotate or move laterally.
Leg-Rest Actuation: Controlling the deployment and stowing of the integrated footrest.
Why Choose SP2018217?
Choosing the genuine Bombardier SP2018217 is essential for maintaining Passenger Safety and Comfort. Over time, non-OEM or "look-alike" cables can undergo tensile creep (stretching), leading to a "spongy" feel or, more critically, a failure of the seat to lock into its mandatory "upright and locked" position for takeoff. The SP2018217 is designed with a specific tensile load rating to ensure that in an emergency, the seat remains structurally sound and the occupant is properly restrained.
The SP2018217 functions on the principle of Mechanical Force Transmission via a flexible link. The physics of the assembly involve a tension-load path where the work done at the handle ($W = F \cdot d$) is transmitted through the conduit to the locking pawl. The Minimum Bend Radius of the SP2018217 is a critical design factor; it allows the cable to be routed through the complex, pivoting joints of a luxury seat without "kinking." The internal lubrication-for-life within the conduit ensures that the friction remains constant regardless of cabin temperature, preventing the "stiff-lever" syndrome that often plagues older or non-maintained cabin interiors.
Note: This is a cabin interior component. Installation should be performed by a certified A&P/AME or an authorized interior specialist. Ensure the cable is routed away from sharp edges or moving seat-frame hinges that could pinch or fray the conduit. Post-installation, perform a full "Function and Lock Check" to ensure the seat remains securely engaged in all primary positions. Verify the cable adjuster is safetied to prevent loosening due to airframe vibration.
