{"id":"F2006B08864","name":"AD/DH 104/2 - Siebe Gorman Safety Belt - Modification","slug":"ad-dh-104-2-siebe-gorman-safety-belt-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52064,"registerId":"commonwealth-F2006B08864-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DH 104/2 - Siebe Gorman Safety Belt - 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)  DH 104 (Dove) Series Aeroplanes\n\n \n\nAD/DH 104/2 Siebe Gorman Safety Belt - Modification 8/71\n\nApplicability: All models fitted with Siebe Gorman safety belts.\n\n \n\nDocument: 1. De Havilland Mod. No. Dove 542 (TNS CT(104) No. 69); or 2. ANO 105.1.14.13.5.5.\n\nCompliance: Before 1 September 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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1977},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope regarding safety belt modifications for specific DH 104 Dove aircraft models."},"complexity_factors":["Single paragraph of operative requirements","No definitions section or technical terms requiring interpretation","No conditional logic, exceptions, or nested provisions","Only two external technical documents referenced"],"plain_english_summary":"**What this is:** An **Airworthiness Directive** (a mandatory safety order issued by the aviation regulator) requiring a specific equipment modification.\n\n**Who it affects:** Owners and operators of De Havilland DH 104 Dove aircraft fitted with Siebe Gorman brand safety belts.\n\n**What you must do:** Modify or replace the safety belts by either:\n- Installing De Havilland Modification No. Dove 542, or\n- Complying with airworthiness notice ANO 105.1.14.13.5.5\n\n**When:** The modification had to be completed before 1 September 1971.\n\n**Why it matters:** This ensures the safety belts on these aircraft meet the required standards to protect passengers and crew in an emergency."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dh-104-2-siebe-gorman-safety-belt-modification","history":"/api/acts/ad-dh-104-2-siebe-gorman-safety-belt-modification/history","analysis":"/api/acts/ad-dh-104-2-siebe-gorman-safety-belt-modification/analysis","conflicts":"/api/acts/ad-dh-104-2-siebe-gorman-safety-belt-modification/conflicts","importantCases":"/api/acts/ad-dh-104-2-siebe-gorman-safety-belt-modification/important-cases","documents":"/api/acts/ad-dh-104-2-siebe-gorman-safety-belt-modification/documents"}}