{"id":"F2006B10032","name":"AD/G1159/3 - Fire Extinguishing System - Modification","slug":"ad-g1159-3-fire-extinguishing-system-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55436,"registerId":"commonwealth-F2006B10032-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/G1159/3 - Fire Extinguishing System - 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 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Gulfstream (Grumman) G1159 and G-IV Series Aeroplanes\n\n \n\nAD/G1159/3 Fire Extinguishing System - Modification 9/71\n\nApplicability: All models with S/Nos. 1 to 100 and 775. Document:  Grumman Gulfstream II Service Change No. 104. Compliance:               Before 31 December 1971.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1460},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a standalone technical directive issued in its original form. Airworthiness Directives are specific, targeted instruments that do not expand beyond their stated purpose of mandating particular safety modifications for identified aircraft models."},"complexity_factors":["Extremely brief directive (less than 100 words of substance)","No definitions section or legal interpretations required","Simple applicability test based solely on aircraft serial numbers","Single compliance action referencing one external technical document","No conditional exceptions, exemptions, or nested provisions"],"plain_english_summary":"**What this is:** An aviation safety directive (called an Airworthiness Directive) issued under the Civil Aviation Regulations. It mandates a specific safety modification for certain aircraft.\n\n**Who it affects:** Owners and operators of Gulfstream G1159 and G-IV series aeroplanes with serial numbers 1 to 100, and serial number 775.\n\n**What must be done:** The fire extinguishing system on these aircraft must be modified according to the manufacturer's instructions in \"Grumman Gulfstream II Service Change No. 104\" (a technical service bulletin).\n\n**Deadline:** The modification had to be completed before 31 December 1971.\n\n**Why it matters:** Fire protection systems are essential for passenger and crew safety. This directive ensures specific high-risk aircraft received necessary safety upgrades to prevent or control engine or cabin fires."}},"importantCases":[],"_links":{"self":"/api/acts/ad-g1159-3-fire-extinguishing-system-modification","history":"/api/acts/ad-g1159-3-fire-extinguishing-system-modification/history","analysis":"/api/acts/ad-g1159-3-fire-extinguishing-system-modification/analysis","conflicts":"/api/acts/ad-g1159-3-fire-extinguishing-system-modification/conflicts","importantCases":"/api/acts/ad-g1159-3-fire-extinguishing-system-modification/important-cases","documents":"/api/acts/ad-g1159-3-fire-extinguishing-system-modification/documents"}}