{"id":"F2006B02189","name":"AD/AC-112/5 Amdt 1 - Fuel Selector Valve - Inspection and Replacement","slug":"ad-ac-112-5-amdt-1-fuel-selector-valve-inspection-and-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41419,"registerId":"commonwealth-F2006B02189-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AC-112/5 Amdt 1 - Fuel Selector Valve - Inspection and Replacement","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue 1/1977,Aircraft below 5700 kg,Gulfstream (Rockwell) 112 Series Aeroplanes,Fuel Selector Valve - Inspection and Replacement,5 Amdt 1\ntitle: Airworthiness Directive - AD/AC-112/5 Amdt 1 - Fuel Selector Valve - Inspection and Replacement\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 (Rockwell) 112 Series Aeroplanes\n\n \n\nAD/AC-112/5\n\nAmdt 1\n\n\nFuel Selector Valve - Inspection and Replacement 1/77\n\n \n\nApplicability: Model 112 with S/Nos. 3 to 106, and 108 to 489; Model 112TC with S/Nos. 13002 to\n\n13108.\n\n \n\nDocument: Rockwell International SB No. SB-112-44A. Compliance: Within 100 hours’ time in service after 31 May 1978.\n\nNote: Compliance with the preceding issue of this directive satisfies compliance with this issue of the directive.\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":2693},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This Amendment 1 does not expand the scope beyond the original directive. It covers the same aircraft types (Gulfstream 112 series) and the same safety issue (fuel selector valve integrity). The amendment appears to be administrative or minor technical updates, as compliance with the preceding issue satisfies this version."},"complexity_factors":["Single, unambiguous compliance action required","Applicability restricted to specific aircraft models and serial number ranges","No defined terms, exceptions, or conditional logic","Only one external cross-reference (to manufacturer service bulletin)","Substantive content is approximately 50 words"],"plain_english_summary":"This directive requires owners/operators of certain Rockwell Gulfstream 112 and 112TC aircraft (specific serial numbers) to inspect and replace fuel selector valves per Rockwell Service Bulletin SB-112-44A to maintain airworthiness. \n\nWork must be completed within 100 flight hours after 31 May 1978; prior compliance under the earlier directive satisfies this requirement. It prevents engine fuel cutoff and potential in-flight engine failures."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ac-112-5-amdt-1-fuel-selector-valve-inspection-and-replacement","history":"/api/acts/ad-ac-112-5-amdt-1-fuel-selector-valve-inspection-and-replacement/history","analysis":"/api/acts/ad-ac-112-5-amdt-1-fuel-selector-valve-inspection-and-replacement/analysis","conflicts":"/api/acts/ad-ac-112-5-amdt-1-fuel-selector-valve-inspection-and-replacement/conflicts","importantCases":"/api/acts/ad-ac-112-5-amdt-1-fuel-selector-valve-inspection-and-replacement/important-cases","documents":"/api/acts/ad-ac-112-5-amdt-1-fuel-selector-valve-inspection-and-replacement/documents"}}