{"id":"F2006B10818","name":"AD/INST/17 - King K1 525 Indicator - Modification","slug":"ad-inst-17-king-k1-525-indicator-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56296,"registerId":"commonwealth-F2006B10818-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/INST/17 - King K1 525 Indicator - Modification","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 - 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Instruments and Automatic Pilots\n\n \n\nAD/INST/17 King K1 525 Indicator - Modification 6/75\n\nApplicability: King K1 525 indicator S/Nos. P1 to P1999. Document:  King SB K1 525-1.\n\nCompliance: Before 30 September 1975.\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1595},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted, standalone airworthiness directive addressing a specific instrument defect. It maintains a narrow scope limited to particular serial numbers and does not represent an expansion beyond its original safety purpose."},"complexity_factors":["Extremely short length (single directive)","Narrow applicability limited to specific serial number range (P1-P1999)","Single external reference to technical document (Service Bulletin K1 525-1) without reproducing procedural content","One unambiguous compliance deadline","No conditional provisions or nested exceptions"],"plain_english_summary":"**What this does:** Requires owners or operators of aircraft to modify a specific flight instrument—the King K1 525 Indicator—if it falls within serial numbers P1 to P1999.\n\n**Who it affects:** Aircraft operators or owners whose planes are fitted with this particular navigation or flight instrument within the specified serial number range.\n\n**What must be done:** Apply the modification procedure detailed in the manufacturer's Service Bulletin K1 525-1 (a Service Bulletin is an official technical instruction issued by the manufacturer to fix safety or reliability issues) before 30 September 1975.\n\n**Why it matters:** This directive prevents instrument failures that could compromise flight safety by ensuring outdated or defective units are brought up to current standards."}},"importantCases":[],"_links":{"self":"/api/acts/ad-inst-17-king-k1-525-indicator-modification","history":"/api/acts/ad-inst-17-king-k1-525-indicator-modification/history","analysis":"/api/acts/ad-inst-17-king-k1-525-indicator-modification/analysis","conflicts":"/api/acts/ad-inst-17-king-k1-525-indicator-modification/conflicts","importantCases":"/api/acts/ad-inst-17-king-k1-525-indicator-modification/important-cases","documents":"/api/acts/ad-inst-17-king-k1-525-indicator-modification/documents"}}