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Avionics Standardization Conference: Guidance for Integrated Modular Avionics & Aviation Databus Software

Learn about draft advisory circulars, development considerations, and certification guidelines for Integrated Modular Avionics (IMA) and Aviation Databus Assurance. Understand the terms of reference, key characteristics, safety issues, and member organizations involved. Get insights on partitioning, fault management, environmental qualification, safety, and security considerations. Stay informed about the schedule for release and evaluation criteria for aviation databuses' safety and performance.

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Avionics Standardization Conference: Guidance for Integrated Modular Avionics & Aviation Databus Software

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  1. Guidance for Integrated Modular Avionics (IMA) &Aviation Databus Software & Complex Electronic Hardware Standardization Conference John Lewis, AIR-120, Technical Programs Branch, Washington DC Email: john.lewis@faa.gov, (202) 493-4841 July 26, 2005

  2. Presentation Overview • Draft Advisory Circular (AC) for Integrated Modular Avionics, AC 20-IMA • Draft AC for Aviation Databus Assurance, AC 20-Databus

  3. AC 20-IMA, Integrated Modular Avionics (IMA) Development and Certification Considerations, RTCA/DO-IMA (ED-124) • Why are we writing a new AC for IMA? • TSO C-153 and AC 20-145 addresses IMA hardware elements (software limited). • In July 2002, a joint RTCA/EUROCAE committee was established to develop new guidance for IMA. • New AC will recognize new guidance for IMA via RTCA/DO-IMA (ED-124).

  4. AC 20-IMA, Integrated Modular Avionics (IMA) Development and Certification Considerations, RTCA/DO-IMA (ED-124) • What are the terms of reference for SC-200 and WG-60? • Support certification of all classes of aircraft implementing IMA. • Key characteristics of IMA defined. • Propose and document means for the stand-alone approval of modular avionics separate from the applications. • Transfer of certification credit and reuse of IMA components and systems. • Coordinate IMA issues with other groups.

  5. AC 20-IMA, Integrated Modular Avionics (IMA) Development and Certification Considerations, RTCA/DO-IMA (ED-124) • Term of reference (continue) • Create guidance to address the following safety and performance issues: • Partitioning & resource management • Fault management & health monitoring • Design/developmental design assurance • Configuration management • Environmental qualification • Safety & Security • Considerations for continued airworthiness

  6. AC 20-IMA, Integrated Modular Avionics (IMA) Development and Certification Considerations, RTCA/DO-IMA (ED-124) • Who are the members of SC-200 and WG-60? • Co-chairs are Cary Spitzer (AvioniCon) for RTCA SC-200 and Rene Eveleens (National Aerospace Laboratory) for EUROCAE WG-60. • Government participants include FAA, CAA-UK, & Transport Canada, US Air Force, & NASA Langley. • Industry members include Boeing, Airbus, Honeywell, Rockwell Collins, Smiths Aerospace, Verocel, Thales, TTTech, ARINC, Diehl Avionik, MITRE, Ferrel & Associates, and others.

  7. AC 20-IMA, Integrated Modular Avionics (IMA) Development and Certification Considerations, RTCA/DO-IMA (ED-124) • What is the schedule for release of AC 20-IMA? • Last meeting (God willing) of SC-200/WG-60 to finish disposition of FRAC comments scheduled for Aug. 31-Sept. 2, 2005. • Submit final document to RTCA for PMC approval in October, 2005. • Draft AC 20-IMA ready by Sept. 2005 • Publish AC 20-IMA by Sept. 30, 2006

  8. AC 20-Databus, Aviation Databus Assurance • Why are we writing a new AC for aviation databus assurance? • New databuses and databus components are being proposed for certification projects • Modern databus technology are more complex while providing increased performance & bandwidth, greater flexibility in configuration, and reduced assembly, design, and integration time. • Establish evaluation criteria to address safety concerns for aviation databuses.

  9. AC 20-Databus, Aviation Databus Assurance • What types of new databuses are being considered for certification projects? • CAN (controller area network) • TTCAN (time-triggered CAN) • TTP/C (time-triggered communication/protocol) • ByteFlight • FlexRay • FireWire (IEEE 1394)

  10. AC 20-Databus, Aviation Databus Assurance • What are the evaluation criteria categories in AC 20-Databus? • Safety • Data integrity • Databus performance • Software and hardware assurance • Electromagnetic compatibility • Verification and validation • Configuration management • Security assurance

  11. AC 20-Databus, Aviation Databus Assurance • What is the schedule for release of AC 20-Databus? • FAA coordination of draft AC completed by 7 August, 2005 • Public coordination completed by 7 September, 2005 • Release of final AC in October/November, 2005 timeframe

  12. Questions? zzzzzzzz Comments to:John.Lewis@faa.gov

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