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2026
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| Online Access: | https://doi.org/10.5281/zenodo.19512571 |
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| _version_ | 1866902004497907712 |
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| author | Sattyam Maurya Krishan Chander |
| author_facet | Sattyam Maurya Krishan Chander |
| contents | The manufacturing of aero engines is a highly intricate, time-consuming, and costly process, carrying significant functional and safety implications. Among the most critical elements in hot section engineering are the rotor components, which operate under extreme thermal and mechanical loads. This paper identifies and categorizes various manufacturing defects in this domain, assigns their root causes, maps causal links and cascade effects, and introduces a comprehensive taxonomy system. A structured MRB-driven methodology is presented for classifying defects and determining the appropriate technical disposition of non-conforming components. The identified defects—gathered through direct observation during manufacturing and inspection—are categorized primarily into dimensional and visual types. Disposition decisions, such as acceptance as-is, rework, repair, or scrap, are made based on thorough engineering analysis, technical substantiation, and compliance with aerospace standards. The paper provides a single, illustrated, and standardized list of manufacturing defects across key modules including the high-pressure turbine (HPT), low-pressure turbine (LPT), mid-turbine frame, and turbine exhaust case etc. Standardized defect terminology is proposed, along with a taxonomy of defects and root causes, this integrated approach addresses a notable gap in the aviation industry by offering a unified MRB methodology for systematic defect assessment and resolution. |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19512571 |
| institution | Zenodo |
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| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Defect Classification and Technical Disposition of Aero Engine Hot-Section Anomalies: An MRB Approach Sattyam Maurya Krishan Chander Aero Engine Hot section Gas turbine NDT Technical Dispositions Manufacturing defect The manufacturing of aero engines is a highly intricate, time-consuming, and costly process, carrying significant functional and safety implications. Among the most critical elements in hot section engineering are the rotor components, which operate under extreme thermal and mechanical loads. This paper identifies and categorizes various manufacturing defects in this domain, assigns their root causes, maps causal links and cascade effects, and introduces a comprehensive taxonomy system. A structured MRB-driven methodology is presented for classifying defects and determining the appropriate technical disposition of non-conforming components. The identified defects—gathered through direct observation during manufacturing and inspection—are categorized primarily into dimensional and visual types. Disposition decisions, such as acceptance as-is, rework, repair, or scrap, are made based on thorough engineering analysis, technical substantiation, and compliance with aerospace standards. The paper provides a single, illustrated, and standardized list of manufacturing defects across key modules including the high-pressure turbine (HPT), low-pressure turbine (LPT), mid-turbine frame, and turbine exhaust case etc. Standardized defect terminology is proposed, along with a taxonomy of defects and root causes, this integrated approach addresses a notable gap in the aviation industry by offering a unified MRB methodology for systematic defect assessment and resolution. |
| title | Defect Classification and Technical Disposition of Aero Engine Hot-Section Anomalies: An MRB Approach |
| topic | Aero Engine Hot section Gas turbine NDT Technical Dispositions Manufacturing defect |
| url | https://doi.org/10.5281/zenodo.19512571 |