{"id":"F2006B06023","name":"AD/PA-46/17 - Aileron Balance Weight Attachment Screws","slug":"ad-pa-46-17-aileron-balance-weight-attachment-screws","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114421,"registerId":"commonwealth-F2006B06023-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-46/17 - Aileron Balance Weight Attachment Screws","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-46 (Malibu) Series Aeroplanes\n\n \n\nAD/PA-46/17 Aileron Balance Weight Attachment Screws 13/89\n\nApplicability: As per requirement document.\n\n \n\nRequirement: Action in accordance with Piper Service Bulletin No 921 dated 15 August 1989. Compliance:               At or before the next issue of a Maintenance Release after 25 January 1990.\n\nBackground:  It has been determined that cracks may originate at the aileron balance weight attachment screw holes and may lead to loss of aileron balance weight security if not corrected.\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":2057},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains precisely targeted at its original purpose: addressing a specific mechanical defect in aileron balance weight attachments on Piper PA-46 aircraft. There is no evidence of expansion beyond the initial safety concern."},"complexity_factors":["Requires compliance with an external technical document (Piper Service Bulletin No. 921) for substantive requirements","No defined terms or interpretation section","Single, unambiguous compliance deadline with no exceptions or extensions","No conditional provisions or nested logic"],"plain_english_summary":"**What this does:** This is a mandatory safety notice (called an Airworthiness Directive) for owners and operators of Piper PA-46 (Malibu) aircraft.\n\n**What you must do:** Inspect and repair the screws that hold the aileron balance weights (small weights on the wing control surfaces that prevent dangerous vibrations). You must follow the specific instructions in Piper Service Bulletin No. 921, dated 15 August 1989.\n\n**Deadline:** Complete this work by the next time you renew your aircraft's Maintenance Release (a document certifying the plane is airworthy) after 25 January 1990.\n\n**Why it matters:** Cracks can develop around the screw holes holding these balance weights. If left unchecked, the weights could fall off, causing the ailerons (wing flaps that control rolling) to flutter or fail, which could lead to loss of control of the aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-46-17-aileron-balance-weight-attachment-screws","history":"/api/acts/ad-pa-46-17-aileron-balance-weight-attachment-screws/history","analysis":"/api/acts/ad-pa-46-17-aileron-balance-weight-attachment-screws/analysis","conflicts":"/api/acts/ad-pa-46-17-aileron-balance-weight-attachment-screws/conflicts","importantCases":"/api/acts/ad-pa-46-17-aileron-balance-weight-attachment-screws/important-cases","documents":"/api/acts/ad-pa-46-17-aileron-balance-weight-attachment-screws/documents"}}