{"id":"F2006B09438","name":"AD/ELECT/63 Amdt 1 - TCM (Bendix) Magneto Capacitor","slug":"ad-elect-63-amdt-1-tcm-bendix-magneto-capacitor","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53858,"registerId":"commonwealth-F2006B09438-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ELECT/63 Amdt 1 - TCM (Bendix) Magneto Capacitor","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/63\n\nAmdt 1\n\n  \nTCM (Bendix) Magneto Capacitor 9/94\n\nApplicability: 1. Teledyne Continental Motors (TCM) Ignition Systems (formerly Bendix) new or rebuilt magnetos Models SC-20, SC-200 and S-1200 (Part Number Series 10- 500XXX-X, 10-600XXX-X and 10-349XXX-X respectively) with Manufacturing (Serial) Numbers J2793XXX(R) through J3193XXX(R), K0193XXX(R) through K3093XXX(R) and L0193XXX(R) through L2293XXX(R) inclusive.\n\n2. All TCM or Bendix Model SC-20, SC-200 and S1200 magnetos, regardless of Manufacturing (Serial) Number, that have been fitted with a replacement capacitor Part Number 10-349276 subsequent to 27 October 1993.\n\nNote: The \\`X” in the part and serial numbers represents numbers that have no significance in determining applicability, only the first five digits are needed. The “(R)” at the end of the manufacturing (serial) number indicates a “rebuilt” magneto, while the absence of the “(R)” indicates a “new” magneto.\n\nRequirement: Action in accordance with Teledyne Continental Ignition Systems Critical Service Bulletin CSB641 dated 1 February 1994.\n\nNote: FAA Priority letter AD 94-06-09 refers.\n\nCompliance: The compliance for the original issue of this Directive was within ten hours time in service after 25 March 1994. The compliance for this amendment is unless previously accomplished in accordance with the original issue of this Directive then within 50 hours time in service from 18 August 1994.\n\nBackground: TCM Ignition Systems have advised that quality assurance testing has revealed the potential for capacitors Part Number 10-349276 to have an intermittent open circuit condition. This condition is isolated to two batch lots (93-40 and 93-42) and is readily identifiable by inspection of the capacitor. If not corrected, the condition could result in a \\`Hot Magneto” (ie the magneto is not grounded when the magneto/ignition switch is placed in the off position).\n\nThe inspection mandated by this Directive is designed to correct this situation. This amendment is issued to correct the serial number range of the new or rebuilt magnetos that may be affected.\n\nNote: TCM Ignition Systems Service Information Letter SIL642 provides an explanation of manufacturing or serial numbering system used on TCM Ignition System products.","sortOrder":0}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The amendment corrects the serial-number ranges in the applicability and alters the compliance schedule: the original compliance was within ten hours TIS after 25 March 1994; the amendment requires compliance within 50 hours TIS from 18 August 1994 unless already done. The core requirement—to inspect and, if necessary, replace capacitor P/N 10-349276 per CSB641—remains the same."},"complexity_factors":["Applicability depends on precise model, part-number and serial-number ranges (including rebuilt/new designators)","Requirement references an external service bulletin (CSB641) for the mandated inspection/repair actions","Inspection targets specific capacitor batch lots (93-40 and 93-42) identifiable by visual inspection","Amendment changes the compliance time and corrects serial-number ranges, so operators must reconcile original and amended deadlines","Operational compliance requires maintenance resources and parts replacement where defects are found","Cross-reference to FAA Priority AD and TCM Service Information Letter (SIL642) for serial-number interpretation"],"plain_english_summary":"This airworthiness directive requires owners/operators of certain Teledyne Continental (formerly Bendix) magnetos (models SC-20, SC-200, S-1200 with specified serial ranges, and any unit fitted with capacitor P/N 10-349276 after 27 Oct 1993) to inspect and, if necessary, replace that capacitor following TCM Ignition Systems Critical Service Bulletin CSB641. It targets an intermittent open-circuit defect that can leave a magneto “hot” when switched off. Aircraft owners/operators or their maintenance providers must carry out and pay for the inspection/repair; the Civil Aviation Safety Authority mandates compliance and sets the deadline."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original purpose: addressing the specific capacitor defect in TCM/Bendix magnetos. The amendment merely corrects serial number ranges and extends the compliance deadline — it does not expand the scope beyond the original safety issue."},"complexity_factors":["Highly specific technical applicability criteria involving three magneto models, three serial number ranges, and a date-based condition for replacement parts","Cross-reference to external technical document (TCM Critical Service Bulletin CSB641) which contains the actual inspection procedures — the directive itself does not specify the technical steps","Nested compliance deadlines with conditional logic (\"unless previously accomplished\")","Reference to corresponding FAA directive (AD 94-06-09) for context","Technical notation system requiring explanation (the 'X' wildcard and '(R)' suffix for rebuilt units)"],"plain_english_summary":"This CASA Airworthiness Directive requires inspection and any necessary repair of certain Teledyne Continental Motors (formerly Bendix) magnetos (models SC-20, SC-200, S-1200) because faulty capacitors can cause a \"hot magneto,\" letting an engine run or restart with ignition OFF — a serious safety hazard. It covers specified serial-number ranges and any of these models fitted with capacitor P/N 10-349276 after 27 Oct 1993.\n\nOwners must follow TCM Critical Service Bulletin CSB641 within 50 flight hours of 18 Aug 1994. This amendment extends the original 10‑hour deadline to 50 hours and corrects the serial ranges."}},"importantCases":[],"_links":{"self":"/api/acts/ad-elect-63-amdt-1-tcm-bendix-magneto-capacitor","history":"/api/acts/ad-elect-63-amdt-1-tcm-bendix-magneto-capacitor/history","analysis":"/api/acts/ad-elect-63-amdt-1-tcm-bendix-magneto-capacitor/analysis","conflicts":"/api/acts/ad-elect-63-amdt-1-tcm-bendix-magneto-capacitor/conflicts","importantCases":"/api/acts/ad-elect-63-amdt-1-tcm-bendix-magneto-capacitor/important-cases","documents":"/api/acts/ad-elect-63-amdt-1-tcm-bendix-magneto-capacitor/documents"}}