3616960-3 - Honeywell OEM Oil Cooler Fan Assembly

3616960-3 – Honeywell OEM Oil Cooler Fan Assembly

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Overview

The Honeywell 3616960-3 is a flight-critical oil cooler fan assembly, the genuine OEM component engineered for the Auxiliary Power Unit (APU) installation on the Bombardier Global series of ultra-long-range business jets. This is not a simple fan; it is a high-performance, electrically driven vaneaxial fan designed to provide the essential cooling airflow for the APU's oil cooler. The 3616960-3 is a key component of the APU's thermal management system, ensuring that the lubrication oil remains within its optimal temperature range during ground and in-flight operations.

Manufactured by Honeywell, a world leader in aerospace systems, this fan assembly is built to the most stringent standards for reliability and performance. Its integrity is fundamental to the dispatch reliability of the aircraft, as a properly cooled APU is essential for ground power, cabin comfort, and main engine starting.

Key Features

• High-Performance Vaneaxial Design: Features a multi-blade rotor and a stator vane assembly within a compact, cylindrical housing. This advanced aerodynamic design is highly efficient, capable of moving a large volume of air at a high pressure differential with minimal power consumption and noise.

• Integrated High-Speed Electric Motor: The fan is driven by an integral, high-speed, 3-phase AC electric motor. This motor is designed for long life and reliability in the harsh temperature and vibration environment of the APU compartment.

• Robust, Lightweight Construction: The fan blades and housing are precision-cast or machined from a high-strength, lightweight aluminum alloy. This provides the durability to withstand the operational environment without adding unnecessary weight to the airframe.

• APU Thermal Management: The primary function is to draw ambient air and force it through the cooling fins of the APU's oil cooler heat exchanger. This is the sole means of cooling the APU's oil, especially during high-power, static ground operations.

• Genuine OEM Component: As a genuine Honeywell part specified by Bombardier, it guarantees the correct aerodynamic performance, electrical characteristics, and physical fitment required for this flight-critical system.

Technical Specifications

• Part Number: 3616960-3

• Component Type: APU Oil Cooler Fan Assembly

• OEM Manufacturer: Honeywell Aerospace

• Fan Type: Vaneaxial

• Drive Motor: Integral 3-Phase AC Electric Motor

• Material: High-Strength Aluminum Alloy

• Primary Function: Provides dedicated cooling air for the APU oil cooler.

• Certification: FAA / TCCA Production Approval

Aircraft Compatibility

The 3616960-3 is the specified OEM oil cooler fan for the APUs on the world-renowned Bombardier Global family of business jets. It is imperative to consult the specific aircraft's Illustrated Parts Catalog (IPC) for final verification.

• Primary Aircraft Models:

  • Bombardier Global Express

  • Bombardier Global 5000 / 6000 / XRS

• Primary APU Models:

  • Honeywell GTCP36-150[BD]

Applications

The 3616960-3 is a critical component for APU health and reliability:

• APU Oil Cooling: The sole source of cooling airflow for the APU's lubrication system. An inoperative fan will quickly lead to an APU over-temperature condition and automatic shutdown.

• Component Replacement: Replaced when the fan motor fails, the fan blades are damaged, or the bearings have reached their life limit, to ensure continued APU dispatch reliability.

Why Choose 3616960-3?

The Auxiliary Power Unit is a high-value, complex turbine engine that is essential for the operational flexibility of a modern business jet. Its ability to run for extended periods on the ground is entirely dependent on the efficiency of its oil cooling system. The Honeywell 3616960-3 is the only fan assembly certified by the manufacturer to provide the required airflow and reliability. Using a genuine OEM part is the only way to prevent APU shutdowns due to overheating, ensuring the aircraft is ready when you are.

The 3616960-3 is a vaneaxial fan, an advanced design that offers superior performance to a simple axial or "propeller" fan. An axial fan moves air parallel to its axis of rotation but imparts a significant swirl or tangential velocity to the airflow, which represents wasted energy. The vaneaxial fan adds a stationary set of airfoil-shaped vanes (the stator) downstream of the rotating blades. These stator vanes are precisely angled to "straighten" the swirling airflow, converting that rotational kinetic energy into a further increase in static pressure. This makes the vaneaxial fan significantly more efficient at delivering a high volume of air against the high back-pressure created by the dense fins of an oil cooler, resulting in superior cooling performance for a given motor size and power consumption.

Note: This is a flight-critical APU system component. Installation and testing must be performed by a certified AME or A&P mechanic with experience in Global series aircraft, in strict accordance with the current Bombardier maintenance manual. All electrical connections and mounting hardware should be inspected and properly secured during installation.