PRESSURE SWITCH, OIL (P/N 50-389121-1) - Serviceable
P/N: 50-389121-1
Category: Switches
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| Serviceable | 1 Available |
Product Description
The 50-389121-1 is an electromechanical oil pressure switch for Beechcraft King Air auto-feather circuits. This single-pole, double-throw switch changes electrical state at a defined pressure set point, monitoring engine oil pressure during propeller feathering operations. Installed in the auto-feather pressure manifold on King Air 90/100/200 series aircraft, it provides critical pressure sensing for automatic propeller control.
The switch features a non-adjustable set point per NSN specifications. Installation and testing must follow the applicable aircraft maintenance manual, with IPC compatibility verification required before replacement or troubleshooting.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the PRESSURE SWITCH, OIL (P/N 50-389121-1)?
The 50-389121-1 is an electromechanical oil pressure switch for Beechcraft King Air auto-feather circuits. This single-pole, double-throw switch changes electrical state at a defined pressure set point, monitoring engine oil pressure during propeller feathering operations.
Is the 50-389121-1 compatible with my aircraft's avionics suite?
Avionics compatibility depends on your aircraft model and existing installation. The PRESSURE SWITCH, OIL is available in: Serviceable. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.
Does the 50-389121-1 come with an 8130-3 airworthiness tag?
Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.
Do you offer bench testing for the 50-389121-1?
We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.
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