{"id":"F2006B09407","name":"AD/ELECT/18 Amdt 3 - Slick 4000/4100 Series Sealed Non-Repairable Magnetos - Retirement Life","slug":"ad-elect-18-amdt-3-slick-4000-4100-series-sealed-non-repairable-magnetos-retirement-life","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53767,"registerId":"commonwealth-F2006B09407-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ELECT/18 Amdt 3 - Slick 4000/4100 Series Sealed Non-Repairable Magnetos - Retirement Life","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nElectrical Equipment\n\nAD/ELECT/18\n\nAmdt 3\n\n  \n\nSlick 4000/4100 Series Sealed Non-Repairable Magnetos - Retirement Life\n\n  \n4/91\n\nApplicability: All Slick 4000/4100 series sealed non-repairable magnetos.\n\nNote: This AD does not apply to the new Slick 4200 series magnetos which can be overhauled.\n\nRequirement: Retire from service.\n\nNote: Slick SB 2-80B refers.\n\nCompliance: 1. Magnetos with greater than 700 hours total time in service \\- within 100 hours time in service after 18 April 1991.\n\n2. Magnetos with less than 700 hours total time in service \\- prior to exceeding 800 hours total time in service.\n\nBackground: Amdt 3 to this AD is issued to extend the applicability and to preclude the possibility of these magnetos being run beyond their designed life to destruction.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1397},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"Amendment 3 explicitly extends the directive's applicability compared to earlier versions to capture additional magnetos and prevent operation beyond designed service life, broadening the safety scope."},"complexity_factors":["Single mechanical part applicability with one clear exclusion (4200 series)","Simple binary compliance pathway based solely on hours-in-service threshold (700 hours)","No legislative cross-references beyond one technical service bulletin (SB 2-80B)","Unconditional retirement requirement with straightforward temporal deadlines"],"plain_english_summary":"This AD orders mandatory retirement of Slick 4000 and 4100 sealed, non‑repairable magnetos from service. It applies to anyone operating aircraft with those magnetos (not the overhaulable Slick 4200 series).\n\nHigh‑time units (>700 hours) must be removed within 100 flight hours after 18 April 1991; lower‑time units (<700 hours) must be removed before reaching 800 total flight hours. The rule prevents operation beyond the magnetos’ safe life to reduce risk of sudden engine failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-elect-18-amdt-3-slick-4000-4100-series-sealed-non-repairable-magnetos-retirement-life","history":"/api/acts/ad-elect-18-amdt-3-slick-4000-4100-series-sealed-non-repairable-magnetos-retirement-life/history","analysis":"/api/acts/ad-elect-18-amdt-3-slick-4000-4100-series-sealed-non-repairable-magnetos-retirement-life/analysis","conflicts":"/api/acts/ad-elect-18-amdt-3-slick-4000-4100-series-sealed-non-repairable-magnetos-retirement-life/conflicts","importantCases":"/api/acts/ad-elect-18-amdt-3-slick-4000-4100-series-sealed-non-repairable-magnetos-retirement-life/important-cases","documents":"/api/acts/ad-elect-18-amdt-3-slick-4000-4100-series-sealed-non-repairable-magnetos-retirement-life/documents"}}