{"id":"F2006B11250","name":"AD/M20/45 - Overvoltage Warning Light","slug":"ad-m20-45-overvoltage-warning-light","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56970,"registerId":"commonwealth-F2006B11250-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/M20/45 - Overvoltage Warning Light","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Mooney M20 Series Aeroplanes\n\n \n\nAD/M20/45 Overvoltage Warning Light 12/89\n\nApplicability: All model M20J aircraft S/No 24-3000 through 24-3122. All model M20K aircraft S/No 25-1000 through 25-1213.\n\n \n\nRequirement: Action in accordance with Mooney Aircraft Service Bulletin M20-245. Compliance:  Prior to 30 November 1990.\n\nBackground: Mooney have advised that the 24VDC electrical wiring system on affected S/No aircraft is wired such that the overvoltage warning light is inoperative.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1524},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope: a one-time technical correction for a specific wiring defect in identified Mooney aircraft. It has not expanded beyond the original safety issue described."},"complexity_factors":["Single technical requirement referencing an external manufacturer bulletin","Narrow applicability restricted to specific aircraft models and serial number ranges","No interpretation section, defined terms, or conditional exceptions","Straightforward compliance deadline with no alternative methods stated"],"plain_english_summary":"**What it is:** A mandatory safety directive (Airworthiness Directive) issued under the Civil Aviation Regulations requiring specific aircraft owners to fix a dangerous electrical fault.\n\n**What it does:** Orders owners of certain Mooney M20J and M20K aeroplanes to repair a wiring defect that prevents the overvoltage warning light from working. This light alerts pilots when the aircraft's 24V DC electrical system voltage climbs too high.\n\n**Who it affects:** Owners of:\n- Mooney M20J aircraft with serial numbers 24-3000 through 24-3122\n- Mooney M20K aircraft with serial numbers 25-1000 through 25-1213\n\n**What must be done:** Follow the repair instructions in **Mooney Aircraft Service Bulletin M20-245** before 30 November 1990.\n\n**Why it matters:** Without this warning light, pilots receive no alert if the electrical system overcharges, risking damage to avionics and potential in-flight electrical failures."}},"importantCases":[],"_links":{"self":"/api/acts/ad-m20-45-overvoltage-warning-light","history":"/api/acts/ad-m20-45-overvoltage-warning-light/history","analysis":"/api/acts/ad-m20-45-overvoltage-warning-light/analysis","conflicts":"/api/acts/ad-m20-45-overvoltage-warning-light/conflicts","importantCases":"/api/acts/ad-m20-45-overvoltage-warning-light/important-cases","documents":"/api/acts/ad-m20-45-overvoltage-warning-light/documents"}}