3E2011-3 - Textron Aviation OEM BF Goodrich De-Ice Brush Module B

3E2011-3 – Textron Aviation OEM BF Goodrich De-Ice Brush Module

Available now on the Airparts.aero Marketplace.

Overview

The 3E2011-3 is a genuine OEM, flight-critical de-ice brush module, engineered by B.F. Goodrich (now part of Collins Aerospace) and specified for use on a wide range of Textron Aviation aircraft. This is a complete, self-contained brush assembly that is a key component of the electro-thermal propeller de-icing system. Its primary function is to safely and reliably transfer high-amperage electrical current from the stationary airframe to the rotating propeller slip ring assembly. This current is then used to heat the propeller de-ice boots, preventing or removing dangerous ice accretion. As a genuine OEM component, it guarantees the correct materials, spring tension, and electrical characteristics required for this critical safety system.

Key Features

• Reliable Current Transfer: Houses multiple carbon brushes, each held against the propeller slip ring by a constant-force spring. This design ensures a continuous, low-resistance electrical connection to the rotating propeller assembly, which is essential for proper de-ice boot heating.
• High-Quality Carbon Brushes: The carbon brushes are made from a specialized, conductive carbon-graphite composite. This material is chosen for its excellent electrical conductivity, high-altitude performance, and its inherent lubricity, which minimizes wear on the expensive propeller slip rings.
• Durable Insulating Module: The main body of the assembly is a durable, insulated block that securely holds the brushes and prevents electrical shorting to the engine nose case or surrounding structure.
• Constant-Force Springs: Each brush is backed by a precision-calibrated spring. This spring ensures that the brush maintains a consistent and correct pressure against the slip ring, even as the brush wears down over time, guaranteeing a reliable electrical connection and preventing arcing.
• Genuine OEM Component: As a genuine factory component specified by Textron Aviation, it guarantees perfect fitment, certified brush material, and the precise spring tension required for the de-icing system to function as designed under the aircraft's Type Certificate.

Technical Specifications

• Part Number: 3E2011-3
• Component Type: Propeller De-Ice Brush Module
• OEM Manufacturer: B.F. Goodrich / Collins Aerospace
• Brush Material: Conductive Carbon-Graphite Composite
• Block Material: High-Dielectric Strength Composite
• Primary Function: Transfers electrical current from the airframe to the propeller slip ring.
• Certification: FAA Production Approval

Aircraft Compatibility

The 3E2011-3 is a standard brush block used in the propeller de-ice systems of many of the world's most popular turboprop and high-performance piston twin aircraft.

• Common Textron Aviation Platforms:
  • Beechcraft King Air: 90, 100, 200 Series
  • Beechcraft Baron: 58P, 58TC
  • Cessna: 340, 414, 421, 425
• Other Platforms:
  • Piper: Cheyenne
  • And many other aircraft equipped with B.F. Goodrich electro-thermal propeller de-ice systems.

Applications

The 3E2011-3 is a critical component for safe flight in icing conditions:

• Propeller Ice Protection: The key stationary component that delivers the electrical power to the rotating propeller de-ice boots. An asymmetric build-up of ice on a propeller can cause destructive vibration.
• Scheduled Maintenance: Brushes are wear items and are a mandatory inspection item. The brush module must be inspected regularly for minimum brush length, pigtail security, spring condition, and for any signs of arcing or contamination.
• System Troubleshooting: A primary component to replace when diagnosing an inoperative or intermittently functioning propeller de-ice system.

Why Choose 3E2011-3?

A functioning propeller de-ice system is mandatory for any aircraft certified for Flight Into Known Icing (FIKI). Failure of the brush block to transfer current can render the entire system useless, creating a severe flight hazard. Using a genuine OEM 3E2011-3 brush module is the only way to ensure the part has the correct, certified brush material to prevent excessive wear on the slip rings and the correct spring tension for a reliable, arc-free connection. For a flight-critical safety system, there is no substitute for genuine OEM parts.

Order Your 3E2011-3 Brush Modules Now

Ensure the reliability of your aircraft's ice protection system with genuine, factory-certified OEM components. Visit Airparts.aero to inquire about new or serviceable 3E2011-3 propeller brush modules today.

The 3E2011-3 brush module is a critical interface between the aircraft's static and rotating systems. Electrical current from the de-ice timer/controller is routed to terminals on the brush module. This current flows through the pigtail leads into the carbon brushes. The constant pressure from the springs ensures the brushes are in firm contact with the concentric, conductive slip rings that are rotating with the propeller. The current is transferred to the slip rings, and from there, it is routed via wires along the propeller blades to the de-ice boots. The carbon-graphite material of the brushes is specifically designed to deposit a thin, conductive graphite film onto the slip rings, which reduces both mechanical friction and electrical resistance, allowing for efficient current transfer with minimal arcing or wear.

Note: This is a flight-critical ice protection system component. Installation and inspection must be performed by a certified A&P mechanic in accordance with the current aircraft maintenance manual. Brushes must be inspected for minimum length and the slip rings must be clean and in good condition for proper operation.