{"id":"F2006B10028","name":"AD/G1159/26 - Nose Landing Gear Retract Cylinder Aft Attach Structure - Inspection","slug":"ad-g1159-26-nose-landing-gear-retract-cylinder-aft-attach-structure-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55425,"registerId":"commonwealth-F2006B10028-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/G1159/26 - Nose Landing Gear Retract Cylinder Aft Attach Structure - Inspection","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/G1159/26 Nose Landing Gear Retract Cylinder\n\nAft Attach Structure - Inspection\n\nApplicability: All model G1159 with S/Nos. 001 to 232 and 775. Document:  Gulfstream American Customer Bulletin No. 276. Compliance:               Within 100 hours time in service after 31 March 1979.\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\n3/79\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1741},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope: a one-time inspection requirement for a specific structural component on specific aircraft serial numbers. There is no evidence of scope creep or expansion beyond the initial safety issue addressed in Gulfstream Customer Bulletin No. 276."},"complexity_factors":["Very short single-page directive with no interpretation section","No cross-references to other legislation beyond the enabling Part 39","Simple applicability test (specific model and serial numbers only)","Single compliance action with unambiguous deadline","No exceptions, exemptions, or conditional logic"],"plain_english_summary":"Owners and operators of Gulfstream G1159 aircraft (S/Ns 001–232 and 775) must, within 100 flight hours after 31 March 1979, inspect the nose landing gear retract cylinder aft attach structure (the rear mounting bracket for the nose‑gear hydraulic cylinder). This mandatory safety check, issued under Part 39 and referenced in Gulfstream American Customer Bulletin No. 276, addresses risk of nose‑gear failure during retraction or landing."}},"importantCases":[],"_links":{"self":"/api/acts/ad-g1159-26-nose-landing-gear-retract-cylinder-aft-attach-structure-inspection","history":"/api/acts/ad-g1159-26-nose-landing-gear-retract-cylinder-aft-attach-structure-inspection/history","analysis":"/api/acts/ad-g1159-26-nose-landing-gear-retract-cylinder-aft-attach-structure-inspection/analysis","conflicts":"/api/acts/ad-g1159-26-nose-landing-gear-retract-cylinder-aft-attach-structure-inspection/conflicts","importantCases":"/api/acts/ad-g1159-26-nose-landing-gear-retract-cylinder-aft-attach-structure-inspection/important-cases","documents":"/api/acts/ad-g1159-26-nose-landing-gear-retract-cylinder-aft-attach-structure-inspection/documents"}}