{"id":"F2009L01868","name":"AD/TSA-600/9 - Alternator Field Circuit Protection - Modification - CANCELLED","slug":"ad-tsa-600-9-alternator-field-circuit-protection-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78906,"registerId":"commonwealth-F2009L01868-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Aerostar (Piper/Ted Smith) 600 and 700 S","sectionType":"division","heading":"Aerostar (Piper/Ted Smith) 600 and 700 Series Aeroplanes","content":"### Aerostar (Piper/Ted Smith) 600 and 700 Series Aeroplanes\n\n| AD/TSA-600/9 | Alternator FieldCircuit Protection - Modification | 6/2009 |\n| ------------ | ------------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                         |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 4 June 2009.                                                                                                                                                                                               |\n| Background:  | This unique Australian AD specified modification of the alternator field circuit protection in accordance with Ted Smith Corporation SB No. 600-54 within 200 hours time in service after July 1977. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n24 April 2009","sortOrder":0},{"sectionNumber":"AD/TSA-600/9","sectionType":"part","heading":"AD/TSA-600/9","content":"## AD/TSA-600/9","sortOrder":1},{"sectionNumber":"Alternator FieldCircuit Protection - Mod","sectionType":"part","heading":"Alternator FieldCircuit Protection - Modification","content":"## Alternator Field  \nCircuit Protection - Modification","sortOrder":2},{"sectionNumber":"6/2009","sectionType":"part","heading":"6/2009","content":"## 6/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2591},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument serves solely to revoke a previous Airworthiness Directive. It does not expand regulatory reach or create new obligations; it simply terminates an existing requirement."},"complexity_factors":["Extremely short document (approximately 100 words)","Single operative provision (cancellation)","No defined terms or interpretation section","No cross-references to other legislation","No conditional logic, exceptions, or procedural steps"],"plain_english_summary":"**What this document does:** It officially cancels a previous safety rule (called an Airworthiness Directive) that required owners of specific aircraft to modify their electrical systems.\n\n**Who it affects:** Owners and operators of Aerostar (Piper/Ted Smith) 600 and 700 series aeroplanes.\n\n**The change:** Previously, owners had to modify the alternator field circuit protection (part of the plane's electrical charging system) according to Ted Smith Corporation Service Bulletin No. 600-54 within 200 flight hours after July 1977. **This document removes that requirement** — the modification is no longer legally mandated as of 4 June 2009."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tsa-600-9-alternator-field-circuit-protection-modification-cancelled","history":"/api/acts/ad-tsa-600-9-alternator-field-circuit-protection-modification-cancelled/history","analysis":"/api/acts/ad-tsa-600-9-alternator-field-circuit-protection-modification-cancelled/analysis","conflicts":"/api/acts/ad-tsa-600-9-alternator-field-circuit-protection-modification-cancelled/conflicts","importantCases":"/api/acts/ad-tsa-600-9-alternator-field-circuit-protection-modification-cancelled/important-cases","documents":"/api/acts/ad-tsa-600-9-alternator-field-circuit-protection-modification-cancelled/documents"}}