{"id":"F2006B05585","name":"AD/PA-28/18 - Wing Rear Spar Attachment Bolts - Inspection","slug":"ad-pa-28-18-wing-rear-spar-attachment-bolts-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46618,"registerId":"commonwealth-F2006B05585-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-28/18 - Wing Rear Spar Attachment Bolts - 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-28 Series Aeroplanes\n\n \n\nAD/PA-28/18 Wing Rear Spar Attachment Bolts - Inspection 1/68\n\nApplicability: As detailed in Piper SB No. 261. Document:  Piper SB No. 261.\n\nCompliance: Within 100 hours time in service after 25 January 1968.\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":1664},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope requiring inspection of specific structural components on a specific aircraft type."},"complexity_factors":["Single operative requirement with no subsections","No defined terms or interpretation section","Only one external reference (manufacturer service bulletin)","No conditional exceptions or nested logic"],"plain_english_summary":"This Airworthiness Directive applies to Piper PA-28 series aircraft. It mandates a safety inspection of the **wing rear spar attachment bolts** — the critical fasteners that hold the wings to the fuselage.\n\n**Who it affects:**\n- Owners and operators of Piper PA-28 aircraft covered by Piper Service Bulletin No. 261\n\n**What you must do:**\n- Inspect the wing rear spar attachment bolts within **100 hours of flight time** (calculated from 25 January 1968)\n\n**Why it exists:**\n- To detect cracks, corrosion, or wear in these vital structural bolts before they fail, which could cause the wing to separate from the aircraft in flight"}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-18-wing-rear-spar-attachment-bolts-inspection","history":"/api/acts/ad-pa-28-18-wing-rear-spar-attachment-bolts-inspection/history","analysis":"/api/acts/ad-pa-28-18-wing-rear-spar-attachment-bolts-inspection/analysis","conflicts":"/api/acts/ad-pa-28-18-wing-rear-spar-attachment-bolts-inspection/conflicts","importantCases":"/api/acts/ad-pa-28-18-wing-rear-spar-attachment-bolts-inspection/important-cases","documents":"/api/acts/ad-pa-28-18-wing-rear-spar-attachment-bolts-inspection/documents"}}