{"id":"F2006B05441","name":"AD/PA-22/5 - Rivets in Aileron Hinge Bearing Blocks - Inspection","slug":"ad-pa-22-5-rivets-in-aileron-hinge-bearing-blocks-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46162,"registerId":"commonwealth-F2006B05441-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-22/5 - Rivets in Aileron Hinge Bearing Blocks - Inspection","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-22 (Tri-Pacer and Colt) Series Aeroplanes\n\n \n\nAD/PA-22/5 Rivets in Aileron Hinge Bearing Blocks - Inspection NK\n\nApplicability:  All models. Document: Piper SL No. 216A. Compliance:  Forthwith.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2025},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains tightly focused on its original purpose: requiring inspection of specific rivets on a specific aircraft type. There is no evidence of scope expansion beyond the initial safety-critical inspection requirement."},"complexity_factors":["Extremely brief text with a single compliance obligation","No defined terms or interpretation section","No exceptions, conditions, or nested logic","Substantive technical requirements contained in external manufacturer document (Piper SL No. 216A)"],"plain_english_summary":"**What this is:** An **Airworthiness Directive** (a mandatory safety order issued by the Civil Aviation Safety Authority, or CASA).\n\n**What it requires:** Owners and operators of **Piper PA-22 aircraft** (Tri-Pacer and Colt models) must immediately inspect the rivets located in the aileron hinge bearing blocks — these are the metal fittings that allow the wing control surfaces (ailerons) to pivot.\n\n**How to comply:** Follow the technical instructions contained in **Piper Service Letter No. 216A** immediately (the law uses the word \"forthwith,\" which means without delay).\n\n**Why it matters:** Loose or damaged rivets in these hinge blocks could impair the pilot's ability to control the aircraft's roll, creating a safety risk during flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-22-5-rivets-in-aileron-hinge-bearing-blocks-inspection","history":"/api/acts/ad-pa-22-5-rivets-in-aileron-hinge-bearing-blocks-inspection/history","analysis":"/api/acts/ad-pa-22-5-rivets-in-aileron-hinge-bearing-blocks-inspection/analysis","conflicts":"/api/acts/ad-pa-22-5-rivets-in-aileron-hinge-bearing-blocks-inspection/conflicts","importantCases":"/api/acts/ad-pa-22-5-rivets-in-aileron-hinge-bearing-blocks-inspection/important-cases","documents":"/api/acts/ad-pa-22-5-rivets-in-aileron-hinge-bearing-blocks-inspection/documents"}}