AMC 20-189 The Management of Open Problem Reports (OPRs)
Source document: Easy Access Rules for Acceptable Means of Compliance for Airworthiness of Products, Parts and Appliances (AMC-20) (Amendment 22)
AMC 20-189 The Management of Open Problem Reports (OPRs)
Summary
The text outlines various RTCA documents related to software tool qualification and model-based development, along with guidelines for civil aircraft development. It details the availability of documents from EASA, FAA, EUROCAE, and RTCA. Additionally, it describes the management of open problem reports, including recording, classification, assessment, resolution, and closure processes.
Related Questions
RTCA DO-330, titled 'Software Tool Qualification Considerations', provides guidelines and considerations for the qualification of software tools used in the development of software for airborne systems. It aims to ensure that the tools used in the software development process meet the necessary safety and reliability standards required for aviation applications, thereby supporting compliance with DO-178C and DO-278A.
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EUROCAE documents can be purchased from the European Organisation for Civil Aviation Equipment, located at 9-23 rue Paul Lafargue, 'Le Triangle' building, 93200 Saint-Denis, France. They can be contacted via telephone at +33 1 49 46 19 65 or through email at [email protected]. More information is available on their website at www.eurocae.net.
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EASA Certification Specifications (CSs) and Acceptable Means of Compliance (AMC) can be downloaded directly from the EASA website at www.easa.europa.eu. This provides easy access to the regulatory documents necessary for compliance in the aviation sector.
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The classification scheme in AMC 20-189 is significant because it provides a structured approach to categorizing Open Problem Reports (OPRs) based on priority. Each OPR is assigned a single classification, which enhances visibility of critical issues and prevents inconsistencies. The scheme prioritizes classifications in the order of 'Significant', 'Functional', 'Process', and 'Life-cycle data', ensuring that the most relevant issues are addressed first.
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The key aspects of the Problem Report (PR) management process include: 1. PR Recording: Documenting problems from life-cycle processes. 2. PR Classification: Classifying PRs early in the life cycle to focus on those with potential safety or functional effects. 3. PR Assessment: Assessing the impact of open PRs at the time of product approval, typically by a review board. 4. PR Resolution: Correcting or mitigating PRs before approval, with processes varying by classification. 5. PR Closure: Closing PRs through review and confirmation of resolution, documented via an authorization process.
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