51698-003 - Cirrus Aircraft OEM Brake Temperature Indicator

51698-003 – Cirrus Aircraft OEM Brake Temperature Indicator

Available now on the Airparts.aero Marketplace.

Overview

The Cirrus Aircraft 51698-003 is a genuine OEM Brake Temperature Indicator, a critical safety component of the advanced braking system used on high-performance Cirrus SR series aircraft. This is not just a sensor, but a complete indicator assembly that integrates with the aircraft's primary flight display (PFD) or multi-function display (MFD) to provide the pilot with real-time temperature data from the brake assemblies. This system is essential for monitoring brake energy absorption, preventing overheating, and ensuring safe ground operations, particularly after high-speed landings or during short-field operations.

Key Features

• Real-Time Temperature Monitoring: Provides pilots with instantaneous, quantitative temperature readings for each main wheel brake assembly, displayed directly on the primary cockpit avionics display.
• Enhanced Situational Awareness: By knowing the precise temperature of the brakes, pilots can make informed decisions regarding taxiing, shutdown procedures, and the need for brake cooling periods, preventing potential tire blowouts or brake fade.
• Seamless Avionics Integration: Designed to interface directly with the aircraft's integrated avionics suite (such as the Garmin Perspective+), providing alerts and indications as part of the total crew awareness system.
• High-Accuracy Sensor Input: The indicator processes signals from sophisticated temperature sensors (thermocouples or thermistors) located at the brake calipers to provide the most accurate temperature readings possible.
• Genuine Cirrus OEM Part: As a genuine factory component from Cirrus Aircraft, it guarantees perfect compatibility, software integration, and performance as specified in the aircraft's type design and airworthiness certificates.

Technical Specifications

• Part Number: 51698-003
• Component Type: Brake Temperature Indicator / Signal Conditioner Unit
• Aircraft System Interface: Integrated Avionics System (e.g., Garmin G1000/G2000 Perspective+)
• Input: Receives signals from wheel brake temperature sensors.
• Output: Digital data stream to the integrated flight deck.
• Primary Function: Monitors for brake overheating conditions to prevent tire failure and ensure braking effectiveness.
• Certification: FAA Production Approval

Aircraft Compatibility

The 51698-003 Brake Temperature Indicator is specified for use on high-performance, later-generation Cirrus aircraft equipped with the corresponding braking system and avionics. It is imperative to consult the specific aircraft's Illustrated Parts Catalog (IPC) to verify the correct part number for your aircraft's serial number.

• Primary Aircraft Models:
  • Cirrus SR22T (G6, G7)
  • Cirrus SR22 (G6, G7)
  • Potentially other Cirrus models equipped with this specific system.

Applications

The 51698-003 is integral to the safe operation of the aircraft:

• Normal Flight Operations: Provides crucial data during taxi, takeoff, and especially after landing to manage brake energy and prevent heat-induced damage.
• Maintenance & Troubleshooting: A key component in diagnosing issues with the brake temperature monitoring system or the brakes themselves.
• Safety System Integrity: A non-functional brake temperature system is a potential no-go item, making this component essential for maintaining the aircraft in an airworthy condition.

Why Choose 51698-003?

High-performance single-engine aircraft like the Cirrus SR22T can generate immense energy in the brakes during landing, posing a risk of overheating that can lead to brake failure or tire explosion. The 51698-003 indicator is the brain of the system designed by Cirrus to mitigate this exact risk. Using a genuine OEM part ensures that the software, calibration, and alerts function exactly as intended by the manufacturer. For a safety system this critical, there is no substitute for the guaranteed performance and airworthiness of a genuine Cirrus Aircraft component.

Order Your 51698-003 Brake Temperature Indicator Now

Maintain the integrity of your Cirrus's advanced safety systems with genuine OEM components. Visit Airparts.aero to order your 51698-003 brake temperature indicator today.

The 51698-003 Brake Temperature Indicator is a sophisticated signal conditioning unit that translates the raw analog output from the brake temperature sensors into a calibrated digital signal for the glass cockpit displays. During landing, the aircraft's kinetic energy (Ek​=21​mv2)  is converted into thermal energy (Q) in the brake discs. The 51698-003 system allows the pilot to monitor this energy conversion in real-time. The avionics system uses the data from this unit to display temperatures in green (normal), yellow (caution), and red (warning) ranges, providing clear, color-coded guidance. This allows the pilot to adhere to POH procedures, such as mandatory cooling times before taxiing into confined spaces or before initiating a subsequent takeoff, thereby preventing brake fluid boiling, seal damage, and ensuring maximum braking performance is available if needed.

Note: This is a critical aircraft safety and avionics component. Installation, calibration, and testing must be performed by a qualified A&P mechanic or certified repair station with experience on Cirrus aircraft systems, in accordance with the current Cirrus Aircraft maintenance manual.

 
Fits in:

**Cirrus Aircraft SR20 32-42-02 Illustrated Parts Catalog [ Click Here ]

1. See Page 6, Figure-02, Item 123