{"id":"F2009L04134","name":"AD/DAUPHIN/98 - Vertical Gyro Unit Data Output - Operational Limitation/Procedure - CANCELLED","slug":"ad-dauphin-98-vertical-gyro-unit-data-output-operational-limitation-procedure-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":81762,"registerId":"commonwealth-F2009L04134-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Euocopter SA 360 and SA 365 (Dauphin) Se","sectionType":"division","heading":"Euocopter SA 360 and SA 365 (Dauphin) Series Helicopters","content":"### Euocopter SA 360 and SA 365 (Dauphin) Series Helicopters\n\n| AD/DAUPHIN/98 | Vertical Gyro Unit Data Output - Operational Limitation/Procedure | 22/2009 |\n| ------------- | ----------------------------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 7 November 2009.                                                                                                  |\n| Background:  | The requirements of this Directive have been superseded by European Aviation Safety Agency Emergency Airworthiness Directive 2009-0241-E. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n6 November 2009","sortOrder":0},{"sectionNumber":"AD/DAUPHIN/98","sectionType":"part","heading":"AD/DAUPHIN/98","content":"## AD/DAUPHIN/98","sortOrder":1},{"sectionNumber":"Vertical Gyro Unit Data Output - Operati","sectionType":"part","heading":"Vertical Gyro Unit Data Output - Operational Limitation/Procedure","content":"## Vertical Gyro Unit Data Output - Operational Limitation/Procedure","sortOrder":2},{"sectionNumber":"22/2009","sectionType":"part","heading":"22/2009","content":"## 22/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2175},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the regulatory scope of the original Airworthiness Directive rather than expanding it. The directive's purpose has concluded with full cancellation, transferring oversight to the referenced European Aviation Safety Agency directive."},"complexity_factors":["Single operative provision cancelling previous requirements","No defined terms or interpretive provisions","No conditional logic or exceptions","Minimal cross-referencing (only to the superseding EASA directive)"],"plain_english_summary":"This document **cancels** a previous aviation safety rule that applied to Eurocopter Dauphin helicopters (models SA 360 and SA 365).\n\n**What it does:**\n- Ends Airworthiness Directive AD/DAUPHIN/98, which previously required specific operating limits or procedures for the vertical gyro unit (a flight instrument that helps track aircraft orientation)\n- Removes these Australian requirements effective 7 November 2009\n\n**Why it matters:**\nThe cancellation happens because the European Aviation Safety Agency (EASA) issued a new emergency safety rule (Emergency AD 2009-0241-E) that replaces the old Australian requirements. Owners and operators of these helicopters no longer need to follow the cancelled Australian directive but must comply with the new European standards instead."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-98-vertical-gyro-unit-data-output-operational-limitation-procedure-cancelled","history":"/api/acts/ad-dauphin-98-vertical-gyro-unit-data-output-operational-limitation-procedure-cancelled/history","analysis":"/api/acts/ad-dauphin-98-vertical-gyro-unit-data-output-operational-limitation-procedure-cancelled/analysis","conflicts":"/api/acts/ad-dauphin-98-vertical-gyro-unit-data-output-operational-limitation-procedure-cancelled/conflicts","importantCases":"/api/acts/ad-dauphin-98-vertical-gyro-unit-data-output-operational-limitation-procedure-cancelled/important-cases","documents":"/api/acts/ad-dauphin-98-vertical-gyro-unit-data-output-operational-limitation-procedure-cancelled/documents"}}