01-0770509-07 - Whelen FAA-PMA Flasher Assembly for Cessna Aircraft

01-0770509-07 – Whelen FAA-PMA Flasher Assembly for Cessna Aircraft

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Overview

The Whelen 01-0770509-07 is an FAA-PMA approved, high-voltage flasher/power supply, engineered as a direct replacement for the original equipment in a wide range of modern Cessna single-engine aircraft. This unit is the heart of the aircraft's high-intensity strobe light system. Its primary function is to convert the aircraft's 28-volt DC electrical power into the high-voltage energy required to ionize and fire the xenon flash tubes in the wingtip and tail strobe light assemblies. Manufactured by Whelen, the global leader in aviation lighting, this solid-state power supply ensures reliable, consistent, and brilliant flashes for maximum aircraft conspicuity.

Key Features

• Dual-Channel High-Voltage Output: A single, compact unit provides two independent outputs, capable of powering two separate strobe light heads (typically wingtips) simultaneously.
• Solid-State Reliability: Utilizes modern, solid-state electronic circuitry for converting and storing electrical energy. This design has no moving parts, offering superior reliability and a longer service life compared to older mechanical systems.
• Optimized Flash Rate: The internal timing circuitry is precisely calibrated to produce a flash rate that complies with FAA regulations for anti-collision lighting systems, ensuring maximum visibility and recognition by other aircraft.
• RF & EMI Shielding: Housed in a radio-shielded and hermetically sealed case to prevent the emission of electromagnetic interference (EMI), which could otherwise affect navigation and communication radios.
• Direct OEM Replacement: Engineered as a direct, form, fit, and function replacement for the original Cessna-installed power supply, ensuring a straightforward installation with the existing aircraft wiring and mounting provisions.

Technical Specifications

• Part Number: 01-0770509-07
• Component Type: Strobe Light Flasher / Power Supply
• Input Voltage: 28 VDC
• Number of Outlets: 2
• Output: High-Voltage DC capacitor-charging circuit.
• Compatibility: Designed to power Whelen A650 series and other compatible xenon strobe light head assemblies.
• Construction: Shielded and sealed aluminum housing.
• Certification: FAA-PMA

Aircraft Compatibility

The Whelen 01-0770509-07 is the specified FAA-PMA replacement power supply for many later-model Cessna piston aircraft. It is imperative to consult the specific aircraft's Illustrated Parts Catalog (IPC) for final verification.

• Primary Aircraft Models (Examples):
  • Cessna 172R, 172S Skyhawk
  • Cessna 182S, 182T Skylane
  • Cessna T182T Turbo Skylane
  • Cessna 206H Stationair
  • Cessna T206H Turbo Stationair

Applications

The 01-0770509-07 is the central component of the aircraft's high-intensity anti-collision light system:

• Strobe System Operation: Its sole function is to provide the timed, high-energy electrical pulses needed to fire the xenon flash tubes.
• System Troubleshooting & Repair: The primary component to test and replace when troubleshooting an inoperative or intermittently flashing strobe light system.
• Avionics & Lighting Upgrades: A reliable power supply for new strobe installations or when replacing older, less reliable power units.

Why Choose 01-0770509-07?

The aircraft's anti-collision strobe system is a critical piece of safety equipment. A functioning system depends entirely on the reliability of its power supply. The Whelen 01-0770509-07 is a robust, solid-state unit from the industry's most trusted lighting manufacturer. It provides the clean, powerful, and precisely timed energy needed for your strobe lights to perform at their peak brightness. Choosing a genuine Whelen PMA part guarantees certified performance and peace of mind that your aircraft is as visible as possible to other traffic.

Order Your Whelen 01-0770509-07 Flasher Assembly Now

Restore the full intensity and reliability of your aircraft's anti-collision lighting system. Visit Airparts.aero to order your genuine Whelen 01-0770509-07 flasher assembly today.

The Whelen 01-0770509-07 is a capacitor-discharge power supply. Internally, an oscillator and transformer circuit steps the aircraft's 28 VDC up to approximately 450-500 VDC. This high voltage is used to charge a large storage capacitor for each output channel. The unit's timing circuit then sends a very high-voltage trigger pulse (several kilovolts) to the trigger wire of the xenon flash tube in the remote light head. This pulse ionizes the xenon gas, making it conductive. The main storage capacitor then instantly dumps its entire charge through the ionized gas, resulting in a brilliant, split-second flash of light. This process repeats at the FAA-mandated flash rate, providing a highly effective anti-collision signal.

Note: This is a high-voltage system component. The power supply can store a dangerous electrical charge long after the aircraft's power has been turned off. Replacement and service 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.