50-920101-110 - Textron Aviation OEM Fuel Cell Installation B.D. for King Air 90

50-920101-110 – Textron Aviation Fuel Cell Installation Kit for King Air 90

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The Textron Aviation 50-920101-110 is a genuine OEM installation kit, representing the complete bill of materials required for the proper re-installation of an outboard leading edge fuel cell in a Beechcraft King Air 90 series aircraft. This is not a single part, but a comprehensive collection of all the flight-critical, mandatory-replacement gaskets, seals, packings, and hardware that must be replaced any time a fuel cell is removed for maintenance or replacement. The integrity of the aircraft's fuel system and the safety of flight are directly dependent on the correct use of these certified components.

Sourcing each individual component separately is time-consuming and risks the procurement of incorrect or non-certified parts. This Textron-kitted solution guarantees that every single component—from the access panel gaskets to the smallest washers and seals—is the correct OEM part, manufactured from the specified fuel-proof materials. It is the only way to ensure the fuel system is returned to an airworthy, leak-free condition in strict accordance with the manufacturer's maintenance procedures.

Key Features

• Genuine Textron Aviation OEM Kit: The factory-authorized collection of parts required for a compliant and airworthy fuel cell installation.

• Contains All Mandatory Replacement Components: Includes the specific assortment of gaskets, seals, and hardware that are designated as single-use and must be replaced to guarantee a leak-free seal.

• Ensures Fuel System Integrity: Using this kit is the primary defence against post-maintenance fuel leaks, which are a catastrophic fire hazard.

• Certified Fuel-Resistant Materials: Every elastomeric component in the kit is made from a specific compound (e.g., Nitrile or Fluorosilicone) engineered for long-term compatibility with aviation fuels like Jet A.

• Simplifies Procurement and Maintenance: Provides all necessary components in a single part number, streamlining the ordering process and ensuring the mechanic has all required items on hand.

Technical Specifications

• Part Number: 50-920101-110

• Component Type: Fuel Cell Installation Kit / Bill of Materials

• OEM Manufacturer: Textron Aviation (Beechcraft)

• Application: Installation of one (1) Outboard Leading Edge Fuel Cell.

• Kit Contents: A comprehensive, model-specific assortment of certified gaskets, seals, packings, O-rings, and fasteners (screws, washers, nuts) as specified by the OEM for one fuel cell installation. May also include items like lacing cord or sealant, per the maintenance manual's requirements.

*** FAA-PMA alternate part available - 2535-14 ***

Aircraft Compatibility

This installation kit is specifically designed for the outboard leading edge fuel cells on various models of the Beechcraft King Air 90 series. Common applicable models include, but are not limited to:

• King Air C90, C90A, C90GT, C90GTi

• King Air E90

• King Air F90

Crucial Note: The specific aircraft model and serial number must be checked against the latest revision of the official Textron Aviation (Beechcraft) Illustrated Parts Catalog (IPC) to ensure correct part number applicability.

Applications

• Mandatory for use any time an outboard leading edge fuel cell is removed and reinstalled for repair or replacement.

• Used during major airframe inspections and structural repairs that require fuel cell removal.

Why Choose 50-920101-110?

Choosing the genuine Textron 50-920101-110 kit is a non-negotiable decision for safety and airworthiness. A fuel leak, particularly within the wing structure, is one of the most hazardous situations in aviation. Re-using old, compressed gaskets or substituting hardware store components for certified fasteners and seals introduces an unacceptable level of risk. This OEM kit is the only way to guarantee that every single component is dimensionally correct, made from the proper fuel-impermeable material, and meets the quality standards of the aircraft's original type design. It is the only professionally acceptable method for ensuring a leak-free fuel cell installation.

The installation of a fuel cell is a complex task involving both mechanical and chemical engineering principles to create what is known as an integral fuel tank environment. This kit contains components critical to that process. The gaskets and seals are likely made from specific durometers of Nitrile (NBR) or Fluorosilicone (FVMQ), elastomers chosen for their extremely low swell characteristics when immersed in hydrocarbon fuels like Jet A. The most critical components, if included or specified, are the polysulfide fuel tank sealants. These are typically two-part, chromate-cured thermosetting polymers that, upon curing, form a flexible, fuel-impermeable synthetic rubber. When used as a faying surface seal between the fuel cell access panels and the wing structure, the sealant performs two vital functions: first, it creates a perfect, gap-free barrier against fuel vapor and liquid leaks. Second, it prevents moisture and other electrolytes from entering the seam between the panel and the wing skin, which is essential for preventing galvanic corrosion between dissimilar metals in the aircraft structure over the long term. This kit provides a collection of these chemically compatible, engineered materials required to restore the fuel system to a safe and airworthy condition.

Note: This kit contains flight-critical, single-use components. All gaskets, seals, and packings are designed to be replaced every time a fuel cell is removed. Re-using old seals will result in a fuel leak and a severe fire hazard. Fuel cell installation is a complex and critical maintenance task that must be performed by a certified A&P mechanic with experience in aircraft fuel systems, in strict accordance with the Textron Aviation maintenance manual for the specific aircraft model.

Documentation

The definitive parts list, applicability, and all installation procedures are detailed in the applicable Textron Aviation (Beechcraft) King Air 90 Series Illustrated Parts Catalog (IPC) and Maintenance Manual.