Air Data / Attitude and Heading Reference System (ADAHRS) – P/N 429-075-123-107

SEAL

The 429-075-123-107 Air Data / Attitude and Heading Reference System (ADAHRS) is an avionics Line Replaceable Unit (LRU) designed for the Bell 429 helicopter. It features the latest-generation MEMS gyroscopes, improved air data sensors for enhanced low-speed accuracy and long-term stability, redesigned air data input ports for increased durability, and updated LRU software. This unit is a direct replacement for P/N 429-075-123-105 and requires no airframe modifications for installation.

Technical Specifications

Part Number: 429-075-123-107
Honeywell Part Number: 065-00188-5505
Component Type: Air Data / Attitude and Heading Reference System (ADAHRS)
Category: Avionics Line Replaceable Unit (LRU)
Gyroscope Technology: MEMS
Air Data Sensors: Improved design
Air Data Input Ports: Improved design
Software: Updated LRU software
Replacement For: 429-075-123-105
Installation: Direct replacement (Drop-in replacement)
Airframe Modification Required: No