{"id":"F2006B09282","name":"AD/DHE/7 - Throttle Bell Crank Pivot Stud - Modification","slug":"ad-dhe-7-throttle-bell-crank-pivot-stud-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53330,"registerId":"commonwealth-F2006B09282-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DHE/7 - Throttle Bell Crank Pivot Stud - 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 - 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  De Havilland Piston Engines\n\n \n\nAD/DHE/7 Throttle Bell Crank Pivot Stud - Modification NK\n\nApplicability: Gipsy Queen 70 series. Document: 1. DH Mod. G2051; or\n\n2. ANO 106.1.7.6.5.10.\n\n \n\nCompliance: Before installation in an aircraft.\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":1627},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope targeting a single mechanical component on a specific engine series. There is no evidence of scope expansion beyond the original airworthiness safety purpose."},"complexity_factors":["Single, unambiguous compliance requirement (modify before installation)","No defined terms or interpretation section","Narrow applicability limited to one specific engine series (Gipsy Queen 70)","Only two external technical documents referenced; no nested cross-references or conditional exceptions"],"plain_english_summary":"This safety rule requires a mechanical fix for a specific vintage aircraft engine part. **Who it affects:** Anyone installing a **Gipsy Queen 70 series engine** (a De Havilland piston engine) into an aircraft. **What it requires:** Before installation, you must modify the **throttle bell crank pivot stud** — the pivot pin that allows the throttle control lever to move and regulate engine power. **Why it matters:** This prevents the throttle mechanism from failing, which could cause a loss of engine power control during flight. The work must follow the technical instructions in either **Document DH Mod. G2051** or **ANO 106.1.7.6.5.10**."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhe-7-throttle-bell-crank-pivot-stud-modification","history":"/api/acts/ad-dhe-7-throttle-bell-crank-pivot-stud-modification/history","analysis":"/api/acts/ad-dhe-7-throttle-bell-crank-pivot-stud-modification/analysis","conflicts":"/api/acts/ad-dhe-7-throttle-bell-crank-pivot-stud-modification/conflicts","importantCases":"/api/acts/ad-dhe-7-throttle-bell-crank-pivot-stud-modification/important-cases","documents":"/api/acts/ad-dhe-7-throttle-bell-crank-pivot-stud-modification/documents"}}