{"id":"F2006L03610","name":"AD/TAY/7 - LPT Disc Corrosion - Inspection - CANCELLED","slug":"ad-tay-7-lpt-disc-corrosion-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":137288,"registerId":"commonwealth-F2006L03610-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Rolls Royce Turbine Engines - Tay Series","sectionType":"division","heading":"Rolls Royce Turbine Engines - Tay Series","content":"### Rolls Royce Turbine Engines - Tay Series\n\n| AD/TAY/7 | LPT Disc Corrosion - Inspection | 12/2006 |\n| -------- | ------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                              |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 23 November 2006.                                                                               |\n| Background:  | This AD has been superseded by AD/TAY/17. That AD extends the applicability of the engines that were listed in this AD. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n12 October 2006","sortOrder":0},{"sectionNumber":"AD/TAY/7","sectionType":"part","heading":"AD/TAY/7","content":"## AD/TAY/7","sortOrder":1},{"sectionNumber":"LPT Disc Corrosion - Inspection","sectionType":"part","heading":"LPT Disc Corrosion - Inspection","content":"## LPT Disc Corrosion - Inspection","sortOrder":2},{"sectionNumber":"12/2006","sectionType":"part","heading":"12/2006","content":"## 12/2006","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":3092},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The directive has been completely cancelled, nullifying all previous inspection requirements and applicability. The replacement directive AD/TAY/17 explicitly extends coverage to additional Rolls-Royce Tay engine models not included in the original AD/TAY/7 scope."},"complexity_factors":["Single operative provision (cancellation clause) with no technical standards or procedures","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislation","Extremely short length (less than 50 words of substantive content)"],"plain_english_summary":"This document cancels a previous aviation safety rule (**Airworthiness Directive**) that required inspections for corrosion in the **low-pressure turbine (LPT) discs** of **Rolls-Royce Tay series** aircraft engines.\n\n**What changed:**\n*   **Cancelled:** The original directive (AD/TAY/7) is cancelled effective **23 November 2006**.\n*   **Replacement:** A new directive (**AD/TAY/17**) replaces this one.\n*   **Wider coverage:** The new rule applies to more engine models than the original directive covered.\n\nThis means aircraft operators no longer need to follow the specific inspection requirements from the original AD/TAY/7, but must instead comply with the updated requirements in AD/TAY/17."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tay-7-lpt-disc-corrosion-inspection-cancelled","history":"/api/acts/ad-tay-7-lpt-disc-corrosion-inspection-cancelled/history","analysis":"/api/acts/ad-tay-7-lpt-disc-corrosion-inspection-cancelled/analysis","conflicts":"/api/acts/ad-tay-7-lpt-disc-corrosion-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-tay-7-lpt-disc-corrosion-inspection-cancelled/important-cases","documents":"/api/acts/ad-tay-7-lpt-disc-corrosion-inspection-cancelled/documents"}}