{"id":"F2006L03880","name":"AD/F100/75 Amdt 1 - High Pressure Compressor - CANCELLED","slug":"ad-f100-75-amdt-1-high-pressure-compressor-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":60815,"registerId":"commonwealth-F2006L03880-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Fokker F100 (F28 Mk 100) Series Aeroplan","sectionType":"division","heading":"Fokker F100 (F28 Mk 100) Series Aeroplanes","content":"### Fokker F100 (F28 Mk 100) Series Aeroplanes\n\n| AD/F100/75 Amdt 1 | High Pressure Compressor | 1/2007 |\n| ----------------- | ------------------------ | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                    |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 18 January 2007.                                                                                                                                                                                                                                                                      |\n| Background:  | The AD/F100/75 was applicable to Rolls Royce Germany Tay turbine engines installed on Fokker model F100 aircraft only. AD/TAY/18 supersedes AD/F100/75 and mandates revised high pressure (HP) compressor vane setting procedures on RR Tay 620/650 series engines irrespective of the aircraft installation. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n24 November 2006","sortOrder":0},{"sectionNumber":"AD/F100/75 Amdt 1","sectionType":"part","heading":"AD/F100/75 Amdt 1","content":"## AD/F100/75 Amdt 1","sortOrder":1},{"sectionNumber":"High Pressure Compressor","sectionType":"part","heading":"High Pressure Compressor","content":"## High Pressure Compressor","sortOrder":2},{"sectionNumber":"1/2007","sectionType":"part","heading":"1/2007","content":"## 1/2007","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1717},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This amendment terminates the instrument entirely rather than expanding its scope. The original directive applied only to F100 aircraft installations; this cancellation removes that specific requirement entirely as the matter is now covered by a broader engine-specific directive (AD/TAY/18) that applies to all aircraft types using these engines."},"complexity_factors":["Single operational effect (cancellation of previous instrument)","No substantive regulatory requirements, conditions, or obligations imposed","No defined terms or interpretation section","No cross-references to complex legislative frameworks beyond noting the replacement directive","Minimal text (under 100 words of substantive content)"],"plain_english_summary":"**This document cancels a previous aviation safety rule about high pressure compressors in Fokker F100 aircraft.**\n\nIn plain English:\n- **What it does**: This officially cancels Airworthiness Directive (AD) F100/75 on 18 January 2007. An Airworthiness Directive is a legally binding safety instruction issued by the Civil Aviation Safety Authority (CASA) to fix unsafe conditions in aircraft.\n- **Why**: The old rule required specific maintenance procedures for high pressure compressor vanes in Rolls-Royce Tay engines, but only when those engines were installed in Fokker F100 aircraft. A new directive (AD/TAY/18) now covers the same safety issue for these engines **regardless of which aircraft type** they are installed in, making the F100-specific rule redundant.\n- **Who it affects**: Owners and operators of Fokker F100 aircraft with Rolls-Royce Tay 620/650 series engines. They must now follow the replacement directive AD/TAY/18 instead."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f100-75-amdt-1-high-pressure-compressor-cancelled","history":"/api/acts/ad-f100-75-amdt-1-high-pressure-compressor-cancelled/history","analysis":"/api/acts/ad-f100-75-amdt-1-high-pressure-compressor-cancelled/analysis","conflicts":"/api/acts/ad-f100-75-amdt-1-high-pressure-compressor-cancelled/conflicts","importantCases":"/api/acts/ad-f100-75-amdt-1-high-pressure-compressor-cancelled/important-cases","documents":"/api/acts/ad-f100-75-amdt-1-high-pressure-compressor-cancelled/documents"}}