{"id":"F2006B04485","name":"AD/BELL 206/29 - Cover Assembly P/N 206-001-012-1 or P/N 206-001-012-7 - Inspection and Modification","slug":"ad-bell-206-29-cover-assembly-p-n-206-001-012-1-or-p-n-206-001-012-7-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44322,"registerId":"commonwealth-F2006B04485-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 206/29 - Cover Assembly P/N 206-001-012-1 or P/N 206-001-012-7 - Inspection and 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)  Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters\n\n \n\n# AD/BELL 206/29 Cover Assembly P/N 206-001-012-1 or\n\nP/N 206-001-012-7 - Inspection and Modification\n\nApplicability: All model 206A with S/Nos. 4 to 583. Document:  Bell SL 206A-155.\n\n# 11/70\n\nCompliance: Inspect within 10 hours time in service after 28 October 1970. Modify within 100 hours time in service after 28 October 1970.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1669},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original targeted scope addressing a specific safety issue with identified cover assembly parts on specific helicopter models. There is no evidence of scope expansion beyond the initial airworthiness concern."},"complexity_factors":["Specific identification of exact part numbers affected (206-001-012-1 and 206-001-012-7)","Narrow applicability limited to specific serial number range (4 to 583) of model 206A only","Simple linear compliance requirements with fixed time-based deadlines","No conditional logic, exceptions, or cross-references to other regulatory provisions","Short, single-purpose document addressing one mechanical component"],"plain_english_summary":"**What this means for helicopter operators**\n\nIf you operate a Bell 206A helicopter with serial numbers 4 through 583, you must take specific action regarding a particular engine cover assembly part (part numbers 206-001-012-1 or 206-001-012-7).\n\n**What you must do**\n\n*   **Inspection:** Check the cover assembly within 10 hours of flight time after 28 October 1970\n*   **Modification:** Complete modifications to the cover assembly within 100 hours of flight time after 28 October 1970\n\n**Why this matters**\n\nThis safety directive addresses specific airworthiness concerns with the cover assembly on these helicopter models, based on technical guidance from Bell Helicopter (Service Letter 206A-155). Compliance is mandatory to maintain the aircraft's certification to fly."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-206-29-cover-assembly-p-n-206-001-012-1-or-p-n-206-001-012-7-inspection-and-modification","history":"/api/acts/ad-bell-206-29-cover-assembly-p-n-206-001-012-1-or-p-n-206-001-012-7-inspection-and-modification/history","analysis":"/api/acts/ad-bell-206-29-cover-assembly-p-n-206-001-012-1-or-p-n-206-001-012-7-inspection-and-modification/analysis","conflicts":"/api/acts/ad-bell-206-29-cover-assembly-p-n-206-001-012-1-or-p-n-206-001-012-7-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-bell-206-29-cover-assembly-p-n-206-001-012-1-or-p-n-206-001-012-7-inspection-and-modification/important-cases","documents":"/api/acts/ad-bell-206-29-cover-assembly-p-n-206-001-012-1-or-p-n-206-001-012-7-inspection-and-modification/documents"}}