131790-1 - Textron Aviation OEM Magnetic Particle Inspected Wing Attach Bolt

131790-1 – Textron Aviation OEM Magnetic Particle Inspected Wing Attach Bolt

Available now on the Airparts.aero Marketplace.

Overview

The Textron Aviation 131790-1 is a genuine OEM, flight-critical wing attach bolt, one of the most crucial structural components on the Cessna Citation 560 series of business jets. This is not a standard fastener; it is a proprietary bolt engineered to bear the full aerodynamic and structural loads of the wing, securing it to the fuselage carry-through structure. Each 131790-1 bolt is manufactured from ultra-high-strength steel and is subjected to mandatory 100% Non-Destructive Testing (NDT) via Magnetic Particle Inspection (MPI) to guarantee absolute material perfection and structural integrity.

Key Features

• Primary Structural Application: Designed specifically for the main wing-to-fuselage attachment point. This joint transfers all flight loads—including lift, G-forces, and turbulence—from the wing to the main airframe.
• Non-Destructive Tested (NDT): Every bolt is individually subjected to Magnetic Particle Inspection (MPI). This rigorous quality control process ensures the fastener is completely free from microscopic surface or near-surface cracks and material inclusions that could lead to fatigue failure.
• Ultra High-Strength Steel Alloy: Fabricated from a premium VAR (Vacuum-Arc Remelt) steel alloy and heat-treated to achieve an exceptionally high tensile and shear strength, providing the immense load-carrying capability required for this joint.
• Superior Corrosion Protection: Coated with a robust, multi-layer, corrosion-resistant plating. This finish protects the high-strength steel from environmental degradation and is essential for maintaining the long-term structural integrity of the wing attach point.
• Life-Limited & Serialized Part: This is a serialized, life-limited component that must be tracked in the aircraft's records and replaced upon reaching its specified life limit in flight hours or cycles, ensuring the highest level of safety.

Technical Specifications

• Part Number: 131790-1
• Component Type: High-Strength, NDT, Structural Wing Attach Bolt
• Inspection Method: Magnetic Particle Inspection (MPI) per applicable aerospace standards.
• Material: Ultra-High-Strength VAR Steel Alloy
• Finish: High-Performance Corrosion-Resistant Plating
• Head Style: Typically a Hexagonal or 12-Point Head for high torque application.
• Dimensions & Thread: Proprietary to Textron Aviation. Must be verified against the aircraft parts catalog.
• Certification: FAA Production Approval with full NDT, material, and life-limit traceability.

Aircraft Compatibility

The 131790-1 is the specified OEM wing attach bolt for some of the most successful business jets ever produced by Cessna. 

Applicable Textron Aircraft

• Baron Series B55, E55, 58 or G58
• Bonanza 36
• Bonanza F33, G33, F33A or F33C

List not comprehensive, may be applicable on other models.

Applications

The 131790-1 has a singular, non-negotiable application:

• Wing-to-Fuselage Attachment: Serves as the primary tension and shear fastener connecting the main wing spar to the fuselage structure. The failure of this component would be catastrophic.
• Mandatory Replacement: Must be replaced when it reaches its published life limit or if it is ever removed during a major structural inspection or repair. Wing attach bolts are never reused.

Why Choose 131790-1?

The wing attach bolts are the most critical fasteners on an aircraft. Their integrity is absolute. The 131790-1 is an engineered solution, not just a piece of hardware. Its MPI certification provides a guarantee against hidden flaws that could compromise the safety of the entire aircraft. Using a genuine Textron Aviation OEM part is the only way to ensure you are installing a bolt with a known, certified, and traceable history, made from the exact material and to the exact specifications required to safely carry the flight loads of the aircraft.

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• Meta Description: Purchase the genuine Textron Aviation 131790-1, a flight-critical, NDT magnetic particle inspected wing attach bolt for the Cessna Citation V, Ultra, Excel, and XLS business jets.
• SEO and Plain Text Keywords: 131790-1, Textron Aviation parts, Cessna Citation parts, Citation V parts, Citation Ultra parts, Citation Excel parts, wing attach bolt, structural bolt, NDT inspected hardware, flight critical hardware, OEM Cessna parts, Airparts.aero.

Order Your 131790-1 Wing Attach Bolts Now

Ensure the absolute structural integrity of your aircraft with genuine, NDT-certified, flight-critical hardware. Visit Airparts.aero to order your Textron Aviation 131790-1 wing attach bolts today.

SEO-Enhanced Addendum

The mandatory Magnetic Particle Inspection (MPI) for a bolt like the 131790-1 is a cornerstone of aerospace safety engineering. The process involves inducing a powerful magnetic field into the bolt. Any surface-breaking flaw disrupts this field, creating a "flux leakage field." When fluorescent magnetic particles suspended in a fluid are applied, they are drawn to these leakage fields, accumulating directly over any flaw and becoming brightly visible under an ultraviolet black light. This allows inspectors to detect microscopic fatigue cracks or manufacturing flaws that would be impossible to see otherwise. For a wing attach bolt, which experiences immense and complex load cycles in every phase of flight, this 100% inspection process is essential to screen out any part that does not have perfect material integrity.

Note: This is a life-limited, flight-critical structural component. It must only be installed in the application specified by the Textron Aviation maintenance manual. Installation is a major repair and must be performed by a certified and appropriately rated A&P mechanic or repair station. It requires the use of a calibrated, high-range torque wrench and a new, corresponding high-strength nut and washer, torqued to the precise multi-stage procedure specified in the manual. All maintenance actions involving this part must be meticulously documented in the aircraft's permanent records.