{"id":"F2006B08917","name":"AD/DH 94/1 Amdt 1 - Flight Limitations","slug":"ad-dh-94-1-amdt-1-flight-limitations","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52463,"registerId":"commonwealth-F2006B08917-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DH 94/1 Amdt 1 - Flight Limitations","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nDH 94 (Moth Minor) Series Aeroplanes\n\nAD/DH 94/1\n\nAmdt 1\n\n  \nFlight Limitations 13/98\n\nApplicability: All Models DH94 series aircraft.\n\nRequirement: Action in accordance with the instructions contained within British Aerospace (BAe) Mandatory Technical News Sheet (TNS) CT (Moth) No. 32 Issue 2, as applicable to this aircraft.\n\nCompliance: Within 150 hours time in service after 3 December 1998 or before 3 December 1999, whichever occurs first.\n\nThis amendment becomes effective on 3 December 1998.\n\nBackground: A recent accident occurred involving a Tiger Moth aircraft. The aircraft was involved in aerobatic manoeuvres and suffered structural failure. This Directive prohibited any form of aerobatic or spinning manoeuvres pending the conclusion of an accident investigation.\n\nAmendment 1 is issued in response to Issue 2 of BAe TNS No. 32 which was issued in response to the results of the accident investigation. This Directive requires certain actions specific to the DH94 aircraft, and makes permanent the flight limitations introduced by the original issue.\n\nThe original issue of this Airworthiness Directive became effective on 25 March 1998.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2096},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"The original directive introduced temporary flight limitations prohibiting aerobatics pending the conclusion of an accident investigation. This amendment converts those interim safety restrictions into permanent airworthiness limitations based on the investigation results, and adds specific compliance requirements with British Aerospace technical instructions."},"complexity_factors":["Relies on external technical document (BAe TNS CT No. 32 Issue 2) not reproduced in the text","Aviation-specific terminology ('time in service', 'airworthiness directive', 'DH94 series')","Conditional compliance deadline (whichever occurs first)","Assumes understanding of aircraft classification and mandatory continuing airworthiness concepts"],"plain_english_summary":"This Civil Aviation Safety Authority Airworthiness Directive makes a permanent ban on aerobatic manoeuvres and spinning in DH94 Moth Minor aircraft after an investigation into a structural-failure accident. It affects all owners and operators of DH94 series aeroplanes.\n\nOperators must adopt the instructions in British Aerospace Mandatory Technical News Sheet CT (Moth) No. 32 Issue 2 and comply within 150 flight hours from 3 December 1998 or by 3 December 1999, whichever is earlier."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dh-94-1-amdt-1-flight-limitations","history":"/api/acts/ad-dh-94-1-amdt-1-flight-limitations/history","analysis":"/api/acts/ad-dh-94-1-amdt-1-flight-limitations/analysis","conflicts":"/api/acts/ad-dh-94-1-amdt-1-flight-limitations/conflicts","importantCases":"/api/acts/ad-dh-94-1-amdt-1-flight-limitations/important-cases","documents":"/api/acts/ad-dh-94-1-amdt-1-flight-limitations/documents"}}