{"id":"F2006B05546","name":"AD/PA-24/9 - Control Tube Guide Blocks - Safety Wiring","slug":"ad-pa-24-9-control-tube-guide-blocks-safety-wiring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46479,"registerId":"commonwealth-F2006B05546-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-24/9 - Control Tube Guide Blocks - Safety Wiring","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)  Piper PA-24 (Comanche) Series Aeroplanes\n\n \n\nAD/PA-24/9 Control Tube Guide Blocks - Safety Wiring NK\n\nApplicability: Models PA-24 and PA-24-250 with S/Nos. 24-80 to 24-1367. Document:  Piper SB No. 178.\n\nCompliance: As per requirement document.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1858},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive remains tightly scoped to its original purpose: addressing a specific mechanical airworthiness issue on a defined subset of Piper Comanche aircraft. It has not expanded beyond this initial technical safety objective."},"complexity_factors":["Extremely short text (approximately 50 words of substantive content)","No definitions section or interpretation provisions","Single operative requirement incorporating an external technical document by reference","Narrow applicability limited to specific aircraft models and serial number range","No conditional clauses, exceptions, or penalty provisions within the instrument itself"],"plain_english_summary":"**What this directive does**\n\nThis Airworthiness Directive (AD) — a legally binding safety order — requires owners and operators of specific Piper Comanche aircraft to install **safety wiring** on the **control tube guide blocks**.\n\n**Who is affected**\n\nThis applies only to:\n- **Models:** Piper PA-24 and PA-24-250\n- **Serial numbers:** 24-80 through 24-1367\n\n**What must be done**\n\nThe aircraft must be modified by fitting safety wiring (a mechanical method using wire to lock bolts in place and prevent them from loosening) to the control tube guide blocks, following the instructions in **Piper Service Bulletin No. 178**.\n\n**Why this matters**\n\nControl tubes carry the pilot's control inputs (steering, pitch) to the aircraft's control surfaces. If the guide blocks fail or loosen, the pilot could lose control of the aircraft. This wiring ensures these critical parts stay secure during flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-24-9-control-tube-guide-blocks-safety-wiring","history":"/api/acts/ad-pa-24-9-control-tube-guide-blocks-safety-wiring/history","analysis":"/api/acts/ad-pa-24-9-control-tube-guide-blocks-safety-wiring/analysis","conflicts":"/api/acts/ad-pa-24-9-control-tube-guide-blocks-safety-wiring/conflicts","importantCases":"/api/acts/ad-pa-24-9-control-tube-guide-blocks-safety-wiring/important-cases","documents":"/api/acts/ad-pa-24-9-control-tube-guide-blocks-safety-wiring/documents"}}