{"id":"F2006B07823","name":"Airworthiness Directives 2004 - Revocation and Remaking - De Havilland DH 60 (Moth) Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-de-havilland-dh-60-moth-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50718,"registerId":"commonwealth-F2006B07823-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Airworthiness Directives 2004 - Revocation and Remaking - De Havilland DH 60 (Moth) Series Aeroplanes","content":"Airworthiness Directives 2004\n\nI, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety\n\nAuthority, acting under subregulation 39.001 (1) of the Civil\n\nAviation Safety Regulations 1998:\n\n(a) revoke the Airworthiness Directives mentioned in\n\nSchedule 1; and\n\n(b) make, as separate instruments, each Airworthiness\n\nDirective mentioned in Schedule 1 and attached.\n\n![](image.001.png)\n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority\n\n20 December 2004\n\nNote: Each attached Airworthiness Directive is being re-made in exactly the\n\nsame form as appears in the latest published edition of the Directive.\n\n  \nSchedule 1 Revocation and Remaking of\n\nAirworthiness Directives\n\nDe Havilland DH 60 (Moth) Series Aeroplanes\n\nAD Name AD Number\n\nCompression Leg Tie-Rod - Inspection AD/DH 60/1\n\nSeat Restraint Installations - Modification AD/DH 60/2\n\nDatum Bolts AD/DH 60/3 Amdt 1\n\nCockpit Lateral Tie Rods and Aircraft Structure AD/DH 60/4 Amdt 1\n\nFlight Limitations and Structural Inspection AD/DH 60/5 Amdt 1\n\nCockpit Safety Harness Installation - Integrity and Lifing AD/DH 60/6\n\nIntroduction of Increased Strength Seat Harness Transverse Cable AD/DH 60/7 Amdt 1","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument maintains identical scope to the original directives. The revocation and remaking is purely administrative—restructuring the legal form without expanding, contracting, or altering the substantive safety requirements. The note explicitly confirms the content remains unchanged."},"complexity_factors":["Very short instrument (under 500 words)","Only 1 defined term implicitly used ('Airworthiness Directive')","Simple binary structure: revoke (a) and remake (b)","No nested conditional logic or cross-references to other legislation beyond the single enabling regulation (Civil Aviation Safety Regulations 1998, subregulation 39.001(1))","Schedule 1 is a straightforward table listing 7 items with names and numbers","Note explicitly states no substantive change to content ('re-made in exactly the same form')","Single delegate signature block—no committee structures or multi-stage decision making"],"plain_english_summary":"This instrument revokes seven existing Airworthiness Directives for De Havilland DH 60 Moth aircraft and re‑issues each as separate, standalone legal instruments. It does not change the technical requirements—only restates them administratively.\n\nIt affects DH 60 owners, maintenance engineers and CASA oversight. Because ADs are compulsory, the measure preserves mandatory safety actions on structural components, restraints and flight limitations while reorganising their legal form."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument does not change substantive scope: each Airworthiness Directive listed in Schedule 1 is revoked and remade 'in exactly the same form' as the latest published edition. The delegate acts under subregulation 39.001(1) and the ADs continue to impose the same inspection, modification and operational requirements on DH 60 operators and owners."},"complexity_factors":["Procedural legal action only: revocation and re-issue of existing ADs in identical form","Multiple ADs involved (7 listed), requiring separate instrument creation and publication","Reliance on delegate power under subregulation 39.001(1)","Attachment and Schedule references create administrative cross-references","Compliance obligations shift to operators/owners/maintenance organisations (inspection, modification, operational limits)","Low substantive change reduces interpretative complexity","Potential operational friction from republishing ADs as separate instruments (record-keeping, citation updates)"],"plain_english_summary":"This instrument revokes the listed Airworthiness Directives for De Havilland DH 60 (Moth) series and remakes each as a separate instrument in the same form, preserving their legal effect. It is made by a CASA delegate under subregulation 39.001(1). Operators, owners and maintenance organisations of DH 60 aircraft remain bound to comply with the remade ADs; they bear the compliance costs and must follow the inspection, modification or operational requirements the ADs impose."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-de-havilland-dh-60-moth-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-de-havilland-dh-60-moth-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-de-havilland-dh-60-moth-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-de-havilland-dh-60-moth-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-de-havilland-dh-60-moth-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-de-havilland-dh-60-moth-series-aeroplanes/documents"}}