0553031-3 - Textron Aviation OEM Lower Firewall Assembly for Cessna 172

0553031-3 – Textron Aviation OEM Lower Firewall Assembly for Cessna 172

Available now on the Airparts.aero Marketplace.

Overview

The Textron Aviation 0553031-3 is a genuine OEM lower firewall assembly, a flight-critical primary structural component for the Cessna 172R Skyhawk. The firewall is an engineered barrier that separates the engine compartment from the cockpit, designed to provide a fireproof shield that can withstand a 2000°F flame for a minimum of 15 minutes. This assembly is precision-stamped and formed from high-temperature stainless steel, providing the structural mounting points for the engine mount, nose gear, and various other firewall-forward components. As a genuine Textron OEM part, it guarantees the exact material specifications, dimensions, and quality required to maintain the safety and structural integrity of the airframe.

Key Features

• Fireproof Stainless Steel Construction: Fabricated from a specific grade of high-temperature, corrosion-resistant stainless steel. This material is mandated by FAA regulations for its ability to resist burn-through from a direct flame, protecting the cockpit from an engine compartment fire.
• Primary Structural Member: Serves as a key structural component of the forward fuselage. It provides the reinforced attachment points for the engine mount, transferring the engine's weight, thrust, and torque loads into the airframe structure.
• Precision-Formed Geometry: Stamped and formed to the exact, complex contours of the Cessna 172R fuselage. This includes all necessary flanges, stiffeners, and cutouts for engine controls, wiring harnesses, and plumbing, ensuring a perfect fit during a major structural repair.
• Corrosion Resistance: The stainless steel material provides excellent inherent resistance to corrosion from heat, moisture, and engine fluids, ensuring the long-term structural integrity of this critical airframe component.
• Genuine Textron OEM Part: As the genuine factory component, it guarantees conformance to the stringent material, heat treatment, and quality control standards of the original aircraft Type Certificate. For a primary structural part, there is no substitute.

Technical Specifications

• Part Number: 0553031-3
• Component Type: Lower Firewall Assembly
• Material: High-Temperature Stainless Steel Alloy
• Primary Function: Fireproof barrier and primary structural attachment point.
• Certification: FAA Production Approval
• Textron Proprietary Part

Aircraft Compatibility

The 0553031-3 is the specific OEM lower firewall assembly for the later models of the Cessna 172 Skyhawk. It is imperative to consult the specific aircraft's Structural Repair Manual (SRM) and Illustrated Parts Catalog (IPC) for final verification.

• Primary Textron Aircraft Model:
  • Cessna 172R Skyhawk

Applications

The 0553031-3 is a primary airframe component used only in specific, major repair scenarios:

• Major Structural Repair: The only approved part for replacing the lower firewall in the event of damage from a hard landing, nose gear collapse, or fire.
• Airframe Restoration: The foundational component for a major restoration or rebuild of the forward fuselage section.

Why Choose 0553031-3?

The firewall is arguably the most important safety structure in a single-engine aircraft. Its ability to contain a fire, even for a few minutes, provides the pilot with the critical time needed to perform emergency procedures and execute a safe landing. The Textron Aviation 0553031-3 is the only part certified to provide this level of protection and to correctly bear the structural loads of the engine and nose gear. Using a salvaged or non-certified part would be a gross violation of airworthiness standards and would unacceptably compromise the safety of the aircraft.

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• Meta Description: Purchase the genuine Textron Aviation 0553031-3 lower firewall assembly. A flight-critical, stainless steel structural component for the Cessna 172R Skyhawk.
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Order Your 0553031-3 Firewall Assembly Now

Ensure the structural integrity and safety of your aircraft with a genuine Textron Aviation OEM structural component. Visit Airparts.aero to order your 0553031-3 lower firewall assembly today.

SEO-Enhanced Addendum

The 0553031-3 firewall functions as both a thermal and a structural bulkhead. As defined by 14 CFR § 23.1191, it must be constructed to be "fireproof," meaning it can withstand a 2000°F (1100°C) flame for 15 minutes without flame penetration. The stainless steel alloy used for the 0553031-3 is selected for its high melting point and low thermal conductivity, which slows the transfer of heat to the cockpit side. Structurally, it acts as a shear web, distributing the loads from the engine mount and nose gear into the fuselage longerons and skin, making it a key element in the aircraft's overall torsional and bending rigidity.

Note: This is a primary structural airframe component. Removal and installation constitute a major repair and must be performed and documented by a certified A&P mechanic with inspection authorization (IA) or at a certified Part 145 repair station, in strict accordance with the current Textron Aviation Structural Repair Manual.