SL-STD-2180 - Superior Air Parts PMA Cylinder Oil Drain Hose

SL-STD-2180 – Superior Air Parts FAA-PMA Engine Oil Drain Hose (replaces Textron STD-2180)

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The Superior Air Parts SL-STD-2180 is a premium, FAA-PMA certified reinforced hose, engineered as a direct replacement for the Textron Aviation standard part STD-2180. This component is designed and manufactured by Superior Air Parts, one of the most trusted names in FAA-PMA components, to meet or exceed the performance, material, and safety standards of the original part. Its primary application is as a rocker arm box oil drain hose on Lycoming engine installations within Textron (Cessna) airframes, providing a critical return path for lubricating oil.

As an FAA-PMA approved part, the SL-STD-2180 has undergone a rigorous FAA review of its design, materials, and manufacturing processes to ensure it is an airworthy and reliable alternative to the original airframe component. It is manufactured from specialized, multi-layer materials designed to provide a long service life in the high-temperature, fluid-rich environment of the engine compartment, offering a dependable and cost-effective solution for maintenance operations.

Key Features

• FAA-PMA Approved Replacement: Fully certified by the FAA as a safe and direct replacement for Textron Aviation P/N STD-2180.

• Meets or Exceeds Original Specifications: Manufactured to the highest standards, ensuring performance and durability that is equivalent or superior to the original component.

• Fuel and Oil Resistant Construction: Features a multi-layer design with a synthetic rubber inner tube specifically formulated to resist degradation from aviation fuels and oils.

• High-Temperature, Reinforced Design: A braided fiber reinforcement layer provides kink resistance and strength, while the outer cover protects against abrasion and the high radiant heat of the engine compartment.

• Precision-Cut for Direct Fit: Manufactured to the precise 1.88-inch length and 0.38-inch inside diameter of the original part for a perfect, trouble-free installation.

Technical Specifications

• Part Number: SL-STD-2180

• Component Type: FAA-PMA Low-Pressure Engine Hose

• Manufacturer: Superior Air Parts, Inc.

• Replaces: Textron Aviation P/N STD-2180

• Material:

  • Inner Tube: Fuel/Oil-Resistant Synthetic Rubber (e.g., Nitrile / NBR)

  • Reinforcement: Braided Fiber

  • Outer Cover: Abrasion/Heat-Resistant Synthetic Rubber

• Governing Specification: Materials and construction are certified under Superior Air Parts' FAA-PMA authority.

• Dimensions:

  • Inside Diameter (ID): 0.38 inches (3/8 in)

  • Length: 1.88 inches (1 7/8 in)

Aircraft Compatibility

The SL-STD-2180 is FAA-PMA approved for installation on any aircraft model and in any location where the Textron Aviation P/N STD-2180 is specified in the Illustrated Parts Catalog (IPC). This includes numerous Textron Aviation (Cessna) aircraft equipped with Lycoming piston engines, such as:

• Cessna 172 Skyhawk (with Lycoming O-320/O-360)

• Cessna 177 Cardinal (with Lycoming O-360)

Crucial Note: The official FAA-PMA supplement for SL-STD-2180 and the specific aircraft's Illustrated Parts Catalog (IPC) are the final authorities for verifying installation eligibility.

Applications

This hose is designed for low-pressure fluid and vapor transfer within the engine compartment. The primary, specified application is:

• Rocker Arm Cover Oil Drain Line Connector: Connects the oil drain fitting on the valve rocker cover to the oil return manifold or tubing.

Why Choose SL-STD-2180?

Choosing the Superior Air Parts SL-STD-2180 provides a certified, high-quality alternative from a leading manufacturer of aftermarket components. The FAA-PMA approval guarantees that the part is a safe and reliable substitute, often at a more competitive price point. For decades, Superior Air Parts has built a reputation on rigorous engineering and quality control, providing mechanics and operators with trusted components that meet the demanding standards of aviation. Opting for the SL-STD-2180 ensures compliance, safety, and value without compromising on quality.

The material science behind the SL-STD-2180's fluid resistance is critical to its function as an FAA-PMA component. To be certified as at least equal to the original, its inner tube must be made from a high-grade elastomer like Acrylonitrile Butadiene Rubber (NBR), or Nitrile. The exceptional performance of NBR in a petroleum-rich environment is a function of its polymer chemistry. The resistance to non-polar solvents (oil and fuel) is directly proportional to the acrylonitrile (ACN) content. The polar nitrile groups (-C≡N) along the polymer chain are chemically dissimilar to the non-polar hydrocarbon molecules of the fluid, effectively repelling them. This prevents the fluid from penetrating the rubber's molecular matrix, which would cause swelling, loss of tensile strength, and eventual failure. This engineered material property ensures the hose maintains its structural integrity and sealing capability throughout its service life in the hostile environment of an engine nacelle.

Note: This hose is a flight-critical component due to its location in the fire zone of the engine compartment. All flexible fluid lines have a finite service life and are subject to degradation from heat, ozone, and fluid exposure. Inspect this hose at every pre-flight and scheduled inspection for any signs of cracking, hardening, swelling, or sponginess. Installation must be performed by a certified A&P mechanic using the correct type of spring or screw-type hose clamps as specified in the maintenance manual.

Documentation

The definitive application and installation eligibility for this FAA-PMA component must be confirmed using the official FAA-PMA database and the Illustrated Parts Catalog (IPC) and maintenance manuals for the specific aircraft model and serial number.