AIRBUS 754-AE4-621-W Atr Warning Annunciator Light 72-500

( Brand: Airbus ), ( Manufacturer Part Number: 754-AE4-621-W ), ( Part Type: Light ), ( Compatible Make: Atr ), ( Country Of Origin: United States )

Review AIRBUS Atr Warning Annunciator Light

The Airbus A320 Family Warning Annunciator (WA) is an essential safety component of the Airbus A320-200 (A320-200) and A321-200 (A321-200) aircraft, specifically the Airbus Industrie ATR 72-500 series. This WA system is designed and manufactured by Airbus, and the model number for this specific component is 754-AE4-621-W.

The ATR 72-500 Warning Annunciator is a crucial element of the aircraft's safety system, responsible for displaying various warnings and caution messages to the flight crew. It is a standalone unit, separate from the Electrical Load Control and Monitoring System (ELCMS) and the Central Maintenance Computer (CMC), allowing it to function independently even in the event of electrical system failures.

This unit houses 12 warning lamps, arranged in three rows of four lamps each, and a test button to validate the functionality of the system. The lamps illuminate to indicate various system warnings, such as electrical, hydraulic, fuel, or environmental conditions that require the attention of the flight crew. The WA system also features a self-test function, which can be activated using the test button, ensuring the system is functioning correctly before each flight.

The 754-AE4-621-W WA system is designed to operate reliably in the harsh environmental conditions typically encountered in aircraft applications. It is built using high-quality components and materials, ensuring a long service life and excellent resistance to vibration, temperature, and humidity fluctuations.

The dimensions of the 754-AE4-621-W WA system are approximately 19.5 inches (49.5 cm) in length, 10 inches (25.4 cm) in width, and 3 inches (7.6 cm) in height. It is designed to be installed in the cockpit, near the center pedestal, providing easy access and visibility for the flight crew. The installation and wiring of the WA system are carried out in accordance with the Airbus A320 Family Maintenance Manual and the applicable regulatory requirements.

In summary, the Airbus 754-AE4-621-W Warning Annunciator is a vital safety component of the Airbus ATR 72-500 aircraft, designed to provide the flight crew with essential warnings and caution messages. Its robust design, independent functionality, and easy-to-use interface make it an indispensable part of the aircraft's safety system.

The Airbus A319, A320, and A321 family of aircraft, including the A319-112, A320-200, and A321-200, use the same warning annunciator system, including the ATR 72-500 warning annunciator light. Here are some potential pros and cons for buying this specific part:

1. Commonality: The ATR 72-500 warning annunciator light is a common part used in the Airbus A320 family of aircraft, which means that replacement parts and maintenance information are widely available.

2. Cost-effective: Replacing a single warning annunciator light with a new one can be more cost-effective than repairing the entire system or buying a used one with an unknown history.

3. Improved safety: A malfunctioning warning annunciator light can lead to safety issues, so replacing a faulty one with a new one can help ensure the safety of the aircraft and its passengers.

1. Cost: The cost of a new ATR 72-500 warning annunciator light can be relatively high, depending on the supplier and the specific part number.

2. Installation: Installing a new warning annunciator light can be a complex process that requires specialized knowledge and tools. It is recommended that the installation be performed by an authorized aircraft maintenance organization or a certified aircraft mechanic.

3. Availability: Depending on the supplier and the specific part number, the availability of a new ATR 72-500 warning annunciator light can vary. It is recommended to check with multiple suppliers to ensure availability and compare prices.

The decision to buy a new ATR 72-500 warning annunciator light for an Airbus A319, A320, or A321 aircraft depends on several factors, including the cost, availability, and the specific needs of the aircraft operator. While the cost of a new warning annunciator light can be relatively high, the safety benefits and the availability of replacement parts make it a worthwhile investment for operators who prioritize the safety and reliability of their aircraft. It is recommended to work with a reputable aircraft maintenance organization or a certified aircraft mechanic to ensure the proper installation and functionality of the new warning annunciator light.

Details:

Condition is For parts or not working. ATR 42/72 Engine Start/Prop Brake/External Lights Siri Panel 27VU OEM. Shipped with USPS Ground Advantage.

part #: 754ae4621 prices

• $212.66-$258.64

specifications aviationpar:

• brand: Airbus
• mpn: 754-ae4-621-w
• part type: Light
• compatible make: Atr
• country of origin: United States

payments aviationpar:

• other
• credit card: Diners-club
• wallet: Apple-pay

returns aviationpar:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

general aviationpar:

• Parts Accessories > Aviation Parts Accessories > Parts
• condition: For parts or not working

seller aviationpar:

• rating: 100.0%
• city: Fair Oaks, California
• # reviews: 1095

offer aviationpar:

• best offers: True
• options: Ship-to-home
• started: April 24, 2026
• sold: 0
• availability: In Stock
• quantity: 1

shipping aviationpar:

• type: Fixed
• carrier: USPS
• cost: $0.00
• class: Standard
• service: USPS Ground Advantage
• transit: 5-8 Days

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