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0513109-72 – Textron Aviation Cessna OEM Firewall Reinforcement Assembly
Available now on the Airparts.aero Marketplace.
Overview
The Textron Aviation 0513109-72 is a genuine OEM, flight-critical structural Firewall Reinforcement Assembly. This component is a primary structural element of the forward fuselage, engineered to be installed on the firewall of specific Cessna aircraft, including the Cessna 172D. Its essential function is to add strength and rigidity to the firewall structure, which is the critical, fire-resistant barrier separating the engine compartment from the cockpit.
This reinforcement is precision-formed from high-strength, aerospace-grade aluminum alloy. It is designed to help distribute the dynamic loads from the engine mount and nose gear, which are concentrated in the firewall area. The structural integrity of this component is paramount to the safety and airworthiness of the airframe, as it ensures the firewall can withstand the immense stress, vibration, and heat of the engine compartment.
Key Features
Genuine Textron Aviation OEM Part: The original, factory-specified component, guaranteeing a perfect fit, form, and function for a structural repair or installation.
Flight-Critical Structural Component: Serves as a primary reinforcement for the firewall, essential for airframe integrity and crashworthiness.
High-Strength Aluminum Construction: Fabricated from aerospace-grade aluminum alloy for an optimal strength-to-weight ratio and fatigue resistance.
Precision Formed & Machined: Engineered to exact Textron (Cessna) specifications to ensure perfect alignment with the firewall and fuselage structure.
Direct Supersedure: This is the factory-approved replacement for the older part number 0513109-68.
Technical Specifications
Part Number: 0513109-72
Component Type: Firewall Reinforcement Assembly
OEM Manufacturer: Textron Aviation (Cessna)
Material: Aerospace-Grade Aluminum Alloy
Approximate Dimensions: 32.75" L x 11.2" W x 0.9" H
Approximate Weight: 0.98 lbs
Supersedes: 0513109-68
Aircraft Compatibility
Cessna (Textron Aviation): 172D Skyhawk (and other models as specified in the IPC).
Note: This is a flight-critical structural component. Applicability can vary by aircraft serial number. The aircraft's specific Illustrated Parts Catalog (IPC) and Structural Repair Manual (SRM) are the final and absolute authorities for determining part applicability.
Applications
Airframe Structural Integrity: Provides essential stiffness and load distribution for the forward firewall assembly.
Airframe Structural Repair: The certified component for replacing a worn, cracked, or corroded original reinforcement during a major firewall or fuselage repair.
Why Choose 0513109-72?
The firewall is one of the most critical structures in an aircraft, responsible for protecting the occupants from the engine and withstanding major structural loads. The 0513109-72 reinforcement is an integral part of this system. Using a non-certified, "will-fit," or improperly repaired part introduces an extreme risk of structural failure, which could be catastrophic in a high-load event or an off-field landing. The genuine Textron OEM part is the only component guaranteed to be manufactured from the correct, certified alloy and to the precise dimensions required to safely manage and distribute these loads.
The engineering function of the 0513109-72 firewall reinforcement is to act as a load-distribution member and structural stiffener. The firewall is a "hard point" on a semi-monocoque fuselage, absorbing the combined static weight of the engine and the dynamic loads of thrust, torque, and landing impacts (via the nose gear). This reinforcement is essentially a large, formed gusset that distributes these highly concentrated stresses over a wider area of the firewall's sheet metal. This prevents stress concentrations at fastener holes and minimizes "oil-canning" or flex, thereby dramatically increasing the fatigue life and overall structural integrity of the entire forward fuselage.
Note: The 0513109-72 is a primary structural component. Installation must be performed by a certified A&P/IA mechanic with structural experience, in strict accordance with the Textron Aviation maintenance and structural repair manuals. This part is not a simple "bolt-on" and will require the precise installation of structural fasteners.
Documentation
No public-facing OEM specification sheet was located for this proprietary part number. All authoritative technical data, installation procedures, and inspection criteria are contained within the official Textron Aviation Model 172 Series Maintenance Manual, Structural Repair Manual (SRM), and Illustrated Parts Catalog (IPC).
