{"id":"F2006B08234","name":"AD/CESSNA 337/15 - Wing Strut Fairing - Modification","slug":"ad-cessna-337-15-wing-strut-fairing-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115488,"registerId":"commonwealth-F2006B08234-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 337/15 - Wing Strut Fairing - 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)  Cessna 337 Series Aeroplanes\n\n \n\nAD/CESSNA 337/15 Wing Strut Fairing - Modification 12/73\n\nApplicability: All models with S/Nos. 33701463 to 33701531. P3370001 to P3370121 and F3370056 and F3370057.\n\n \n\nDocument: Cessna SL ME73-21 Item 1.\n\n \n\nCompliance: Within 100 hours time in service after 31 December 1973.\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":2113},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original precise scope, targeting only the specified Cessna 337 serial numbers for the specific wing strut fairing modification. No evidence of scope creep or expansion beyond the original safety intent."},"complexity_factors":["Narrow applicability limited to specific non-contiguous aircraft serial number ranges","Complete reliance on external technical document (Cessna Service Letter ME73-21) for actual modification instructions","Technical compliance metric ('time in service' rather than calendar days)"],"plain_english_summary":"This Airworthiness Directive from CASA applies to Cessna 337 Skymaster aircraft with serials 33701463–33701531, P3370001–P3370121, and F3370056–F3370057. It mandates modification of the wing strut fairings per Cessna Service Letter ME73‑21, Item 1, to be completed within 100 flight hours after 31 December 1973; non‑compliance renders the aircraft unairworthy and unlawful to operate."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-337-15-wing-strut-fairing-modification","history":"/api/acts/ad-cessna-337-15-wing-strut-fairing-modification/history","analysis":"/api/acts/ad-cessna-337-15-wing-strut-fairing-modification/analysis","conflicts":"/api/acts/ad-cessna-337-15-wing-strut-fairing-modification/conflicts","importantCases":"/api/acts/ad-cessna-337-15-wing-strut-fairing-modification/important-cases","documents":"/api/acts/ad-cessna-337-15-wing-strut-fairing-modification/documents"}}