071-00112-0200 – Textron Aviation Honeywell OEM KCM-805 Configuration Module ⚙️
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Overview
The Textron Aviation/Honeywell 071-00112-0200 is a highly specialized KCM-805 Configuration Module (Config Module), an essential component within the Honeywell Primus 1000/2000 integrated avionics suite, often utilized in high-performance Cessna Citation and other Textron Aviation turbofan and turboprop platforms.1 This module is a non-volatile memory storage device engineered to retain critical, aircraft-specific configuration data, operational parameters, and software personality settings. It interfaces directly with a major Line Replaceable Unit (LRU)—such as an Integrated Avionics Computer (IAC) or a Display Unit (DU)—to ensure the correct system functionality, operational limits, and aircraft-specific modifications are loaded upon power-up.
The primary function of the KCM-805 is to provide a seamless and immediate transfer of the aircraft’s "identity" to the host avionics unit. This is paramount for maintaining the precise performance characteristics, limitations (V-speeds, weight-and-balance parameters), and installed equipment list as defined in the Type Certificate Data Sheet (TCDS) and the aircraft’s specific maintenance documentation. The module’s role is flight-critical, as incorrect configuration data can lead to erroneous display information, invalid flight path computations, or system initialization failures. It is a genuine OEM (Original Equipment Manufacturer) part, guaranteeing compatibility with the complex proprietary data structures of the Honeywell Primus system.
Key Features
Non-Volatile Memory (NVM) Storage: Employs advanced memory technology (e.g., EEPROM or Flash) to retain data indefinitely without external power, ensuring configuration is preserved even after extended power-down cycles.
Proprietary Data Format: Specifically designed to store the encrypted or highly structured configuration files required by the Honeywell Primus 1000/2000 architecture.
Rapid Data Transfer: Engineered for quick and reliable data communication (often via a dedicated serial bus) to the host LRU during system initialization.
Host LRU Independence: Enables quick swap-out of the associated host LRU (e.g., a CDU or IAC) without the need for time-consuming system re-configuration, as the aircraft’s personality is stored externally on this module.
Ruggedized Construction: Encased in a durable, environmentally sealed housing to withstand the vibration, temperature fluctuations, and electromagnetic interference (EMI) characteristic of an aircraft environment.
Technical Specifications
Part Number: 071-00112-0200 (Textron Aviation/Cessna Part Number)
Honeywell P/N: KCM-805 (Korry Configuration Module)2
Component Type: Configuration Memory Module / Personality Module
OEM Manufacturer: Honeywell International Inc.
Interface: Proprietary multi-pin connector for data and power exchange with the host LRU.
Memory Type: Solid-State Non-Volatile Memory (NVM).
Storage Capacity: Proprietary and sufficient for the specific aircraft configuration file structure.
Governing Specifications: Design and manufacturing conform to RTCA DO-160 (Environmental Conditions and Test Procedures for Airborne Equipment) and relevant TSO/ETSOC standards for certified avionics equipment.
Certification Status: Approved for installation as a Certified/TSO (Technical Standard Order) component under FAA/EASA regulations.
Operating Voltage: Typically supplied via the host LRU (often $+5$ VDC logic level).
Aircraft Compatibility
Primary Models:
Cessna Citation Series: Commonly found in various Citation models utilizing the Honeywell Primus 1000/2000/2000XP Integrated Avionics System (IAS), such as the Citation Excel/XLS, Citation V/Ultra, and certain Citation X models.
Other Textron Aircraft: Potentially utilized in King Air B200GT/350i series or other turboprop platforms running similar Honeywell avionics variants.
System Integration: Interfaces with LRUs such as the Integrated Avionics Computer (IAC), Display Units (DUs), or Control Display Units (CDUs).
Verification Note: The Illustrated Parts Catalog (IPC) and Avionics Maintenance Manual (AMM) for the specific aircraft serial number are the definitive and final authority for part applicability.
Applications Section
The 071-00112-0200 Configuration Module is a dedicated memory resource for avionics system personalization and system consistency, specifically performing the following roles:
Aircraft Performance Data Storage: Holds critical aerodynamic and performance coefficients necessary for Flight Management System (FMS) calculations, including V-speeds and climb/descent profiles.
Display Configuration: Stores the specific display formats, checklists, custom messages, and sensor input mapping tailored to the installed hardware configuration of the aircraft.
Software Version Control: Can store and provide the revision level of the operational software required by the host LRU, ensuring compatibility during maintenance and updates.
Why Choose the 071-00112-0200 OEM KCM-805?
The 071-00112-0200 is not an off-the-shelf memory chip; it is a meticulously validated component integral to the system logic of a certified avionics suite. The accuracy of this module is inseparable from airworthiness. Use of non-OEM or unauthorized substitutes carries the unacceptable risk of data corruption, incompatible system initialization, or the loading of incorrect performance limits (e.g., inaccurate angle-of-attack data, mis-calculated thrust settings). Given its role as the source of the aircraft's operational personality, failure or misconfiguration of the KCM-805 can lead to a No-Go situation (AOG) or, worse, compromise flight safety by providing the flight crew with erroneous flight information. This OEM part ensures the proprietary memory structure and communication protocols required by the Honeywell Primus architecture are met with absolute precision.
The KCM-805 operates on the principle of hardware-software partitioning, separating the volatile operational firmware of the host LRU from the non-volatile, aircraft-specific parameter data. The non-volatile memory utilizes semiconductor technology where the configuration is stored by trapping charge in a floating gate structure (e.g., Flash memory), allowing for electronic reading and writing but preventing data loss upon power removal. This design is critical for Mean Time Between Failure (MTBF) logistics. By storing the configuration externally, a failed host LRU can be swapped out and immediately assume the aircraft’s identity simply by plugging in the existing KCM-805 module, dramatically reducing the Mean Time to Repair (MTTR) and eliminating complex, prone-to-error data loading procedures in the field. The integrity of the stored data is often protected by Cyclic Redundancy Checks (CRC) or other advanced error-detection algorithms to ensure the system is reading the validated configuration bit-for-bit.
Note: The 071-00112-0200 KCM-805 Configuration Module is a sensitive electronic component and flight-critical part. While generally a reliable solid-state device, the data it contains dictates the operation of the aircraft's primary avionics. This part often requires specific handling and loading procedures. It must not be interchanged between different aircraft or even different LRU slots without first consulting the Avionics Maintenance Manual (AMM) and performing the required configuration loading and verification procedures (often utilizing specialized avionics loading equipment). All installation, maintenance, and data loading procedures must be performed and certified by licensed A&P/IA mechanics or Avionics Technicians in strict accordance with the current revision of the Honeywell and Textron Aviation manuals.
Documentation
No direct, publicly accessible OEM technical data sheets for the specific P/N 071-00112-0200 were located. For authoritative documentation, reference the following regulatory standards related to certified avionics:
Consult the Honeywell Primus 1000/2000 System Description Manual (SDM) and the specific Cessna Citation Maintenance Manual for LRU interfacing and configuration procedures.