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D23189000-24/D – Safran OEM Left Side Main Landing Gear Assembly for ATR Aircraft
Available now on the Airparts.aero Marketplace.
Overview
The Safran D23189000-24/D is a genuine OEM, flight-critical, complete left-side main landing gear (MLG) assembly, engineered specifically for the ATR 42 and ATR 72 series of regional airliners. Manufactured by Safran Landing Systems, the world leader in landing gear technology, this assembly is a primary structural and system component of the aircraft. It incorporates a robust trailing-link design with an oleo-pneumatic shock strut, engineered to provide superior shock absorption, structural integrity, and durability for the high-cycle operational demands of regional airline service.
Key Features
- Trailing-Link Design: Features a trailing-link configuration, where the axle is mounted on a levered arm that pivots from the bottom of the main shock strut. This design provides a smoother ride during taxi on rough surfaces and helps to absorb the initial spin-up and drag loads of landing more effectively than a simple sliding piston design.
- Oleo-Pneumatic Shock Strut: The core of the assembly is a large, two-stage oleo-pneumatic shock strut. This integrated hydraulic and pneumatic system is designed to absorb and dissipate the immense kinetic energy of landing, protecting the airframe from structural damage and ensuring passenger comfort.
- Ultra-High-Strength Steel Construction: The primary structural components, including the main strut, trailing link, and braces, are forged and machined from ultra-high-strength VAR (Vacuum-Arc Remelt) steel alloys, such as 300M. This provides the exceptional strength and fatigue resistance required to handle thousands of landing cycles.
- Complete, Integrated Assembly: Supplied as a major assembly including the main shock strut, trailing link, torque links (scissors), and the drag and side brace structural members. It is ready for the installation of the wheel, brake, and hydraulic actuator sub-systems.
- Genuine Safran OEM Part: As a genuine OEM component from the landing gear system's original manufacturer, it guarantees full traceability, certified material strength, and conformance to the rigorous NDT inspection and life-limit requirements of the aircraft's Type Certificate.
Technical Specifications
- Part Number: D23189000-24/D
- Component Type: Left Side Main Landing Gear (MLG) Complete Assembly
- OEM Manufacturer: Safran Landing Systems (formerly Messier-Bugatti-Dowty)
- Shock Absorption: Oleo-Pneumatic with Trailing Link
- Material: Ultra-High-Strength Steel Alloys
- Primary Function: Supports aircraft on the ground, absorbs landing loads, houses brake system.
- Inspection: Subject to stringent Non-Destructive Testing (NDT) requirements.
- Certification: EASA / FAA Production Approval with full traceability.
Aircraft Compatibility
The D23189000-24/D is the specific OEM left-side main landing gear for the ATR family of regional turboprop airliners. It is imperative to consult the specific aircraft's Illustrated Parts Catalog (IPC) for final verification.
- Primary Aircraft Models:
- ATR 42 (all series)
- ATR 72 (all series)
Applications
The D23189000-24/D is a primary aircraft system with several flight-critical roles:
- Landing & Ground Operations: The primary means of supporting the aircraft on the ground and absorbing the energy of landing.
- Structural Replacement: Used to replace a complete main gear assembly that has reached its life limit or has sustained non-repairable damage from a hard landing, corrosion, or other event.
- Aircraft Build & Major Overhaul: The factory-standard assembly for aircraft production and major structural overhauls.
Why Choose D23189000-24/D?
The landing gear is one of the most highly stressed and complex systems on a transport-category aircraft. Its failure is catastrophic. Using a genuine OEM D23189000-24/D assembly from Safran is the only way to ensure you are installing a unit with a certified, traceable history, made from the correct materials, and subjected to the rigorous inspections required by the manufacturer and airworthiness authorities. For a system this fundamental to the safety of the aircraft, its passengers, and crew, there is no substitute for a genuine OEM landing gear assembly.
Order Your D23189000-24/D Landing Gear Assembly Now
Ensure the safety and structural integrity of your aircraft with a genuine, fully certified OEM landing gear assembly. Visit Airparts.aero to inquire about new or serviceable D23189000-24/D main landing gear assemblies today.
The trailing-link configuration of the Safran D23189000-24/D offers significant operational advantages. Unlike a simple oleo strut where the axle is fixed to the piston, the trailing link allows the wheel to move aft and upward as it contacts an obstacle or upon touchdown. This motion converts a portion of the vertical force into a horizontal vector, which is more easily absorbed by the shock strut. This results in a much smoother energy dissipation process, reducing the peak G-loads transmitted to the airframe. This characteristic makes the trailing-link design exceptionally well-suited for operations on unpaved or less-than-perfect runway surfaces, a common operational environment for the highly versatile ATR family of aircraft.
Note: This is a flight-critical, serialized, and life-limited aircraft assembly. Installation, rigging, and servicing must be performed by certified A&P or AME mechanics holding the appropriate ratings and in strict accordance with the current ATR maintenance manual. All maintenance actions involving this assembly must be documented in the aircraft's permanent records.
