202331 - Textron Aviation OEM Flashtube Strobe Lamp

202331 – Textron Aviation OEM Xenon Strobe Flashtube Lamp

Available now on the Airparts.aero Marketplace.

Overview

The 202331 is the genuine Textron Aviation Original Equipment Manufacturer (OEM) xenon flashtube lamp for the high-intensity anti-collision strobe light systems installed on numerous Cessna aircraft. This component is the core light-producing element, designed to convert high-voltage electrical energy into a brilliant, omnidirectional flash of white light. It operates as part of a system, requiring a separate power supply (power pack) that stores and discharges high voltage through the xenon gas contained within the lamp's quartz tube.

As the factory-specified replacement part, the 202331 is manufactured to the precise electrical and physical specifications required by the Textron (Cessna) lighting system. This ensures not only correct fitment in the light housing but also complete electronic compatibility with the power supply, guaranteeing the flash intensity, duration, and service life that meet both certification standards and pilot expectations for aircraft conspicuity.

Key Features

• Textron Aviation OEM Certified: Guarantees the part is the factory-approved, fully traceable component for specified Cessna aircraft, ensuring system compatibility and performance.

• High-Intensity Xenon Discharge: Utilizes an inert xenon gas medium, which produces an extremely brilliant, daylight-white flash of light when energized, for maximum aircraft conspicuity.

• Quartz Glass Construction: The flashtube is fabricated from high-purity quartz or hard glass, engineered to withstand the intense thermal shock and high UV radiation of the arc discharge.

• Long-Life Electrode Design: Features robust internal electrodes designed to maximize the number of flash cycles and provide a long, reliable service life.

• Precise System Component: Engineered to match the specific trigger voltage and discharge characteristics of the corresponding high-voltage power supply, ensuring reliable operation.

Technical Specifications

• Part Number: 202331

• Component Type: Xenon Strobe Flashtube Lamp

• OEM Authority: Textron Aviation

• Technology: High-Intensity Discharge (HID) Gas Arc

• Gas Medium: Xenon

• Material (Tube): Per OEM specification, typically Quartz or high-silica "hard glass".

• Required System Component: Must be powered by a compatible high-voltage strobe power supply (power pack). This flashtube does not connect directly to the aircraft bus.

• Input: High-voltage (typically 400-500 VDC) discharge pulse and a high-voltage trigger pulse from the power supply.

Aircraft Compatibility

This OEM flashtube is the specified replacement part for the factory-installed strobe light systems on a wide range of Textron Aviation (Cessna) piston aircraft.

• Primary Cessna Platforms:

  • Cessna 172R, 172S

  • Cessna 182S, 182T

  • Cessna T182T

  • Cessna 206H, T206H

Note: Verification of applicability is the absolute responsibility of the installer. The aircraft's current Illustrated Parts Catalog (IPC) for its specific serial number is the final authority for confirming part number eligibility.

Applications

• The replaceable lamp element within the wingtip and/or tail-mounted anti-collision strobe light assemblies.

• Generates the high-visibility flash required by FAR 91.205 for enhanced aircraft visibility.

Why Choose 202331?

The compatibility between a xenon flashtube and its power supply is an engineered electrical relationship. Using the genuine Textron Aviation OEM lamp is critical for both safety and system longevity. A generic or incorrect flashtube can have a mismatched impedance or trigger voltage requirement, which can cause intermittent flashing, a significant reduction in light intensity, premature lamp failure, or catastrophic damage to the system's power supply. The OEM 202331 is the only part guaranteed to perform as a matched component within the original, certified system.

The 202331 flashtube operates on the principle of a gas-discharge arc within a sealed xenon environment. The process is initiated by a high-voltage trigger pulse that ionizes a path through the xenon gas, effectively creating a momentary conductor. A large capacitor, charged by the system's power supply to approximately 450 VDC, then discharges its stored energy across this path in an extremely short duration, typically measured in microseconds. This massive, instantaneous current flow heats the xenon to a plasma state, causing a rapid expansion of electrons to higher energy orbitals. As these electrons collapse back to their stable state, they emit photons with a spectral distribution that closely mimics natural daylight, resulting in an intensely bright flash. The quartz envelope is critical for this process, as it must be transparent to the light while withstanding the extreme thermal and mechanical shock of the plasma discharge.

Note: This is a high-voltage component. Installation must be performed by a certified A&P mechanic. The associated strobe power supply capacitors can store a lethal electrical charge for an extended period even after aircraft power has been removed. The system must be de-energized and the capacitors fully discharged in strict accordance with the procedures in the Aircraft Maintenance Manual (AMM) before any attempt is made to service the flashtube lamp or its high-tension wiring.

Documentation

All technical data, installation procedures, and safety precautions for the 202331 flashtube lamp are proprietary to Textron Aviation. This information is contained within the official Textron Aviation maintenance manuals and component maintenance manuals for the associated strobe light system. No public-facing documentation is available.