{"id":"F2006B07941","name":"Airworthiness Directives 2004 - Revocation and Remaking - Percival Proctor Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-percival-proctor-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51008,"registerId":"commonwealth-F2006B07941-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 - Percival Proctor 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\nPercival Proctor Series Aeroplanes\n\nAD Name AD Number\n\nWing Rib to Aileron Spar Joint - Inspection AD/PROCTOR/1 Amdt 1\n\nRear Fuselage Drain Holes - Modification AD/PROCTOR/2 (Re-Issue)\n\nCentre Section Spar - Modification AD/PROCTOR/3 (Re-Issue)\n\nControl Cable Pulley - Modification AD/PROCTOR/4 (Re-Issue)\n\nFuel Tank Vent - Modification AD/PROCTOR/5 (Re-Issue)\n\nOuter Wing - Inspection AD/PROCTOR/6 (Re-Issue)\n\nWing Centre Section - Inspection AD/PROCTOR/7 (Re-Issue)\n\nAileron Mass Balance Weight - Inspection AD/PROCTOR/8 (Re-Issue)\n\nSpeed Restriction - Placard AD/PROCTOR/9 (Re-Issue)\n\nFront Seat Restraint Installations - Modification AD/PROCTOR/10 (Re-\n\nAirframe Structure - Inspection AD/PROCTOR/11 (Re-","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument performs a purely technical remaking of existing directives under new regulatory authority. The scope remains identical to the original Airworthiness Directives — covering the same nine safety issues for the same aircraft type. The explicit note confirms 'exactly the same form' preservation."},"complexity_factors":["Very short document (approximately 300 words)","Only 1 defined term implicitly used ('Airworthiness Directive' — not formally defined in text but understood in aviation context)","Simple binary structure: (a) revoke old directives, (b) make new ones","No conditional logic or exceptions — straightforward administrative remaking","Cross-references limited to Schedule 1 table and subregulation 39.001(1) of CASR 1998","No nested provisions or sub-delegations","Note explicitly states no substantive changes to content"],"plain_english_summary":"This instrument revokes and immediately reissues nine existing Airworthiness Directives for Percival Proctor aeroplanes, keeping the requirements unchanged. It affects owners, operators, maintenance engineers and CASA by preserving the legal force of long‑standing safety mandates for these vintage aircraft.\n\nThis is an administrative reissue required by changes in Australian aviation law — not a change to safety standards — ensuring the directives remain valid so historic aircraft can continue to fly."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"No substantive change to scope: the instrument expressly remakes each listed AD in exactly the same form as the latest published editions, so obligations and affected aircraft remain the same (Note; Schedule 1)."},"complexity_factors":["Procedural revocation and re‑making rather than substantive change","Multiple separate AD instruments listed (administrative bundling)","Technical compliance obligations implied by AD titles (inspections, modifications, placards)","Legal authority invoked: subregulation 39.001(1)","Dependence on attached/previously published AD texts for substantive detail"],"plain_english_summary":"This instrument, signed by David Alan Villiers as a CASA delegate under subregulation 39.001(1), revokes and re-makes a set of Airworthiness Directives (ADs) that apply to Percival Proctor series aeroplanes, each reproduced exactly as in the latest published editions (Note; Schedule 1). It affects owners/operators of those aircraft who must comply with the listed ADs (inspection, modification, placarding and installation requirements indicated by the AD titles); the action is procedural and does not alter substantive content or scope (Schedule 1; Note)."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-percival-proctor-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-percival-proctor-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-percival-proctor-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-percival-proctor-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-percival-proctor-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-percival-proctor-series-aeroplanes/documents"}}