{"id":"F2006B07874","name":"Airworthiness Directives 2004 - Revocation and Remaking - Franklin Piston Engines","slug":"airworthiness-directives-2004-revocation-and-remaking-franklin-piston-engines","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50861,"registerId":"commonwealth-F2006B07874-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 - Franklin Piston Engines","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\nFranklin Piston Engines\n\nAD Name AD Number\n\nAir By-Pass Valve - Modification AD/FK-P/1\n\nConnecting Rods - Replacement AD/FK-P/2\n\nEngine Drive Fuel Pump - Inspection AD/FK-P/3\n\nStarter Gear/Damper Assembly P/No 18708 - Inspection AD/FK-P/4\n\nEngine/Propeller Oil Transfer Plug - Replacement AD/FK-P/5\n\nDiaphragm Fuel Pumps AD/FK-P/6 Amdt 1\n\nInterchangeability of Parts AD/FK-P/7\n\nSlide Vane Fuel Pump AD/FK-P/8","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope was not changed. The instrument expressly revokes and re‑makes the listed Airworthiness Directives in exactly the same form as the latest published editions, so the substantive obligations and affected equipment remain unchanged."},"complexity_factors":["Simple administrative action: revocation and re‑making of existing instruments rather than substantive policy change (instrument note).","Authority exercised under a single regulatory provision (subregulation 39.001(1)).","Multiple separate directives are involved (eight ADs listed), increasing administrative scope but not legal complexity.","No amendment to substantive content — identical re‑issuance reduces interpretive risk but preserves compliance obligations.","Delegated decision‑making centralises discretion in the CASA delegate for this action.","Compliance costs and operational impacts fall on aircraft owners/operators and maintenance organisations rather than on the regulator."],"plain_english_summary":"A delegate of the Civil Aviation Safety Authority, acting under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998, revoked a set of Airworthiness Directives for Franklin piston engines and re-made each as a separate instrument. The re-made directives are identical to the latest published versions; aircraft owners, operators and maintenance organisations must comply and will bear any inspection, modification or parts‑replacement costs."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains exactly the same scope as the original directives. The note explicitly states each directive is being 're-made in exactly the same form as appears in the latest published edition.' There is no expansion of scope — it is a pure legal reissuance."},"complexity_factors":["Very short instrument (under 300 words)","Only 1 defined term implicitly used (the Schedule reference)","No cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Simple binary structure: revoke (a) and remake (b)","No conditional logic or exceptions","Tabular schedule with only 2 columns and 8 rows","Purpose is purely administrative — no substantive technical content in the instrument itself (the actual technical requirements are in attached documents not reproduced here)"],"plain_english_summary":"This is an official aviation safety instrument that **revokes and immediately remakes** eight existing airworthiness directives for **Franklin piston engines** (used in aircraft).\n\n**What it does:**\n- **Revokes** (cancels) eight old airworthiness directives\n- **Remakes** them as eight new, separate legal instruments\n- Each new directive is identical to the old one — no technical changes are being made\n\n**Who it affects:**\n- Owners and operators of aircraft with Franklin piston engines\n- Aircraft maintenance engineers and organisations\n- The Civil Aviation Safety Authority (CASA) itself\n\n**Why it matters:**\nAirworthiness directives are **legally binding safety orders** that require specific inspections, repairs, or modifications to aircraft engines. This instrument is essentially a **housekeeping exercise** — updating the legal form of these safety requirements without changing their substance. This ensures the directives remain valid and enforceable under current regulations.\n\n**The eight directives cover:**\n- Air bypass valve modifications\n- Connecting rod replacements\n- Fuel pump inspections\n- Starter gear inspections\n- Oil transfer plug replacements\n- Diaphragm fuel pump requirements\n- Parts interchangeability rules\n- Slide vane fuel pump requirements"}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-franklin-piston-engines","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-franklin-piston-engines/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-franklin-piston-engines/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-franklin-piston-engines/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-franklin-piston-engines/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-franklin-piston-engines/documents"}}