{"id":"F2006B07809","name":"Airworthiness Directives 2004 - Revocation and Remaking - Cessna 525 Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-cessna-525-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50672,"registerId":"commonwealth-F2006B07809-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 - Cessna 525 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\nCessna 525 Series Aeroplanes\n\nAD Name AD Number\n\nMain Landing Gear Trunnion Bearings AD/CESSNA 525/1\n\nDirect Current Power Battery Switch AD/CESSNA 525/2\n\nElectric Pitch Trim System AD/CESSNA 525/3 Amdt 1\n\nElectric Pitch Trim Printed Circuit Board AD/CESSNA 525/4","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope or technical content of the listed Airworthiness Directives. It revokes the existing ADs and re‑makes them as separate instruments in the same form as their latest published editions (see Note and Schedule 1). The practical scope of obligations remains as stated in the re‑made ADs; this instrument performs an administrative re‑issuance rather than a substantive amendment."},"complexity_factors":["Instrument is procedurally simple: revocation and re‑issuance of listed ADs.","References a single enabling provision (subregulation 39.001(1)) but does not create new technical rules.","Multiple separately numbered ADs are involved, requiring cross‑reference to each AD for substantive obligations (Schedule 1).","Administrative consequence (new instrument references) requires stakeholders to consult attachments; substantive detail lies outside this instrument.","No fees, transitional arrangements, or discretionary criteria are set out in the text provided, reducing legal complexity but increasing the need to consult the attached ADs."],"plain_english_summary":"The CASA delegate has revoked and re‑made four existing Airworthiness Directives for Cessna 525 series aeroplanes, issuing them as separate instruments but “in exactly the same form” as the published directives. This is an administrative re‑issuance — it doesn’t change the technical requirements — so operators, owners and maintenance personnel remain subject to the same obligations under the re‑made ADs."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument performs a narrow administrative function—revoking and remaking existing Airworthiness Directives in identical form. The scope remains exactly as per the original directives, with no expansion of subject matter, aircraft types, or safety requirements."},"complexity_factors":["Very short instrument (under 300 words)","Only 4 substantive items in a simple table format","No defined terms section","No cross-references to other legislation beyond the single enabling provision (subregulation 39.001(1))","Simple binary structure: revoke (a) and remake (b)","No conditional logic, exceptions, or nested provisions","Straightforward administrative action with no policy discretion described"],"plain_english_summary":"This is a technical aviation safety instrument issued by the Civil Aviation Safety Authority (CASA) in December 2004. It does two things:\n\n**What it does:**\n- **Revokes** (cancels) four existing Airworthiness Directives for Cessna 525 series aircraft (these are the CitationJet business jets)\n- **Remakes** those same four directives as brand new, separate legal instruments\n\n**The four safety issues covered:**\n- **AD/CESSNA 525/1**: Problems with main landing gear trunnion bearings (the pivot points that attach the wheels to the aircraft)\n- **AD/CESSNA 525/2**: Issues with the direct current power battery switch\n- **AD/CESSNA 525/3 Amdt 1**: Problems with the electric pitch trim system (which helps control the aircraft's nose-up/nose-down attitude)\n- **AD/CESSNA 525/4**: Faults with the electric pitch trim printed circuit board\n\n**Who it affects:**\n- Owners and operators of Cessna 525 series aircraft (CitationJet models)\n- Maintenance organisations servicing these aircraft\n- CASA itself (as the regulator)\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders. When CASA \"remakes\" directives like this, it's typically doing housekeeping to ensure the instruments remain legally valid under current regulations, or to reissue them under updated regulatory powers. The note confirms the technical content stays exactly the same—only the legal form changes. This ensures these safety-critical requirements for landing gear and flight control systems remain enforceable."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-525-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-525-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-525-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-525-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-525-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-525-series-aeroplanes/documents"}}