TR
EN
Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft with A350 and B787 IMA/AFDX Systems
Abstract
The technological evolution of aircraft has increased the mission profiles of avionic systems and their data communication requirements. The Federated architecture and the ARINC 429 protocol, accepted as standards in classic-generation civil passenger aircraft and based on the logic of a separate independent computer for each function, have caused hardware and logical bottlenecks in the face of increasing system complexity. In this study, the avionic infrastructures of classic-generation A320, A330 and B737 aircraft and the Integrated Modular Avionics (IMA) architecture and Avionics Full-Duplex Switched Ethernet (AFDX) network systems used in next-generation A350 and B787 platforms were comparatively analyzed from the perspective of maintenance efficiency. Using qualitative research and document analysis methods, the concrete effects of the transition from a traditional Line Replaceable Unit (LRU) based infrastructure to Common Core Processing Modules (CPIOM) on aircraft hardware weight, troubleshooting times, spare-parts logistics and maintenance personnel workload were examined. The results show that the IMA architecture minimizes hardware redundancy, providing a saving of between 40% and 60% in avionic system weight, and optimizes spare-parts inventory through standardized card structures. Furthermore, the deterministic data transmission of the AFDX network based on the ARINC 664 standard, its Bandwidth Allocation Gap (BAG) restrictions and its integration with Central Maintenance Systems (CMS) prevent fault propagation at the hardware level. Consequently, it was determined that next-generation avionic networks supported by Prognostics and Health Management (PHM) algorithms and the digital-twin philosophy reduce direct maintenance costs (DMC), prevent unnecessary part replacements (No-Fault Found) and maximize aircraft dispatch reliability.
Keywords
References
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Details
Primary Language
English
Subjects
Aircraft Performance and Flight Control Systems
Journal Section
Research Article
Publication Date
June 18, 2026
Submission Date
June 5, 2026
Acceptance Date
June 10, 2026
Published in Issue
Year 2026 Volume: 4 Number: 1
APA
Bakşi, O., & Konar, M. (2026). Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft with A350 and B787 IMA/AFDX Systems. Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi, 4(1), 16-20. https://doi.org/10.66248/cumfad.1964593
AMA
1.Bakşi O, Konar M. Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft with A350 and B787 IMA/AFDX Systems. Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi. 2026;4(1):16-20. doi:10.66248/cumfad.1964593
Chicago
Bakşi, Olcay, and Mehmet Konar. 2026. “Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft With A350 and B787 IMA AFDX Systems”. Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi 4 (1): 16-20. https://doi.org/10.66248/cumfad.1964593.
EndNote
Bakşi O, Konar M (June 1, 2026) Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft with A350 and B787 IMA/AFDX Systems. Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi 4 1 16–20.
IEEE
[1]O. Bakşi and M. Konar, “Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft with A350 and B787 IMA/AFDX Systems”, Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi, vol. 4, no. 1, pp. 16–20, June 2026, doi: 10.66248/cumfad.1964593.
ISNAD
Bakşi, Olcay - Konar, Mehmet. “Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft With A350 and B787 IMA AFDX Systems”. Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi 4/1 (June 1, 2026): 16-20. https://doi.org/10.66248/cumfad.1964593.
JAMA
1.Bakşi O, Konar M. Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft with A350 and B787 IMA/AFDX Systems. Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi. 2026;4:16–20.
MLA
Bakşi, Olcay, and Mehmet Konar. “Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft With A350 and B787 IMA AFDX Systems”. Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi, vol. 4, no. 1, June 2026, pp. 16-20, doi:10.66248/cumfad.1964593.
Vancouver
1.Olcay Bakşi, Mehmet Konar. Analysis of Maintenance Efficiency of Next-Generation Avionics Architectures: Comparison of A320, A330 and B737 Classic Generation Aircraft with A350 and B787 IMA/AFDX Systems. Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi. 2026 Jun. 1;4(1):16-20. doi:10.66248/cumfad.1964593