02-0250274-00 – Whelen Wingtip Flash Tube Beacon A427
Available now on the Airparts.aero Marketplace.
Overview
The Whelen 02-0250274-00 is a genuine OEM xenon flash tube assembly, the core light-producing component for the Whelen Model A427 wingtip strobe/navigation light assembly. This is not a complete light; it is the replaceable flash tube element engineered to convert the high-voltage electrical energy from a strobe power supply into an intensely brilliant, brief flash of white light. Manufactured to Whelen's exacting standards using a high-purity quartz tube filled with xenon gas, this assembly is designed for long life and reliable performance, ensuring your aircraft's anti-collision lighting system functions at peak intensity.
Key Features
High-Intensity Light Output: Filled with high-purity Xenon gas, which, when ionized by a high-voltage discharge, produces an extremely bright, white light in the visible spectrum. This creates a flash that is highly visible even in daylight conditions, enhancing flight safety.
Quartz Glass Construction: The tube is fabricated from a durable, high-clarity quartz glass. This material is chosen for its excellent optical transparency and its ability to withstand the intense heat and thermal shock generated by the high-energy electrical discharge.
Long Service Life: Engineered for a long operational life, typically rated for several million flashes, providing thousands of hours of reliable service before requiring replacement.
OEM Specification: As a genuine Whelen component, it is designed to integrate perfectly with the Whelen A427 light head assembly and its associated power supply, ensuring correct triggering, flash rate, and light intensity.
Precision Assembly: Comes as a complete assembly with the flash tube securely mounted in its high-temperature silicone base, ready for direct installation into the strobe light housing.
Technical Specifications
Part Number: 02-0250274-00
Component Type: Xenon Flash Tube Assembly
Primary Light Assembly Application: Whelen Model A427 Series
Gas: Xenon
Tube Material: Quartz Glass
Base Material: High-Temperature Silicone
Certification: FAA-PMA Approved as part of a complete Whelen light assembly.
Aircraft Compatibility
The 02-0250274-00 flash tube is the specified replacement component for the popular Whelen A427 wingtip strobe/navigation light assemblies, used on a wide range of general aviation aircraft.
Common Aircraft Manufacturers:
Piper
Beechcraft
Mooney
Commander
And various other certified and experimental aircraft equipped with the Whelen A427 system.
Applications
The 02-0250274-00 is the heart of the aircraft's wingtip anti-collision strobe system:
Anti-Collision & Navigation Lighting: Produces the high-intensity flash from the wingtip that makes an aircraft highly conspicuous to other pilots, significantly reducing the risk of mid-air collisions.
Scheduled Maintenance: Replaced when the tube reaches the end of its service life, which is often indicated by erratic flashing, a significant decrease in brightness, or a complete failure to flash.
System Repair: The primary component to replace when troubleshooting an inoperative strobe light, after confirming the power supply is functioning correctly.
Why Choose 02-0250274-00?
The performance of your aircraft's anti-collision lighting is critical for safety. Using a genuine Whelen 02-0250274-00 flash tube ensures that the component has the correct gas pressure, electrode design, and trigger voltage requirements to work perfectly with your existing Whelen power supply and A427 light housing. Substituting with non-certified or imitation flash tubes can result in lower light intensity, premature failure, or damage to the expensive power supply unit. For certified performance and reliability, trust only genuine Whelen components.
Order Your 02-0250274-00 Flash Tube Assembly Now
Restore the brightness and reliability of your aircraft's anti-collision lighting system. Visit Airparts.aero to order your genuine Whelen 02-0250274-00 flash tube assembly today.
The Whelen 02-0250274-00 flash tube operates as part of a high-voltage capacitor discharge circuit. The strobe power supply unit first converts the aircraft's DC power into approximately 450-500V DC, which is used to charge a large storage capacitor. To fire the tube, a separate, very high-voltage trigger pulse (several thousand volts) is sent to a trigger electrode on the outside of the quartz tube. This trigger pulse ionizes the xenon gas inside the tube, drastically lowering its electrical resistance. The main storage capacitor then instantly discharges its massive energy load directly through the now-conductive gas. This sudden, immense flow of current excites the xenon atoms, causing them to emit photons and produce a brilliant flash of light lasting only microseconds.
Note: This is a high-voltage component that is part of a system containing lethal voltages. The strobe power supply can store a dangerous electrical charge long after the aircraft's power has been turned off. Replacement must only be performed by a qualified A&P mechanic or avionics technician who is familiar with the safety procedures for servicing high-voltage strobe systems.