{"id":"F2006B08198","name":"AD/CESSNA 320/2 - Fin Spar Attachment Bolts - Inspection","slug":"ad-cessna-320-2-fin-spar-attachment-bolts-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115407,"registerId":"commonwealth-F2006B08198-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 320/2 - Fin Spar Attachment Bolts -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)  Cessna 320 Series Aeroplanes\n\n \n\nAD/CESSNA 320/2 Fin Spar Attachment Bolts - Inspection 11/67\n\nApplicability: All model 320E with S/Nos. 320E0021 to 320E0101. Document:  Cessna SL No. 67-45.\n\nCompliance: Within 100 hours time in service from 30 November 1967.\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":2087},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This 1967 directive remains a targeted, one-off safety intervention addressing a specific hardware inspection requirement. It has not expanded beyond its original scope of mandating bolt inspections for the identified Cessna 320E aircraft."},"complexity_factors":["Single operative provision with no subsections","No definitions section or defined terms","No cross-references to other legislative provisions (only references manufacturer service letter)","Specific applicability limited to a narrow range of serial numbers (81 aircraft)","Single, clear compliance action with measurable standard (100 hours time in service)"],"plain_english_summary":"**What this is:** A mandatory safety inspection rule (called an Airworthiness Directive) issued by the Civil Aviation Safety Authority for specific Cessna aircraft.\n\n**Who it affects:** Owners and operators of Cessna 320E model aeroplanes with serial numbers between 320E0021 and 320E0101 (approximately 81 aircraft).\n\n**What it requires:** You must inspect the **fin spar attachment bolts** — these are the bolts that hold the tail fin (the vertical stabiliser at the back of the plane) to the fuselage. The inspection ensures these critical structural bolts are not damaged or loose.\n\n**When to comply:** Within 100 hours of flight time (\"time in service\") starting from 30 November 1967.\n\n**Why it matters:** This prevents potential structural failure of the tail section, which could lead to loss of control of the aircraft. The directive references Cessna Service Letter No. 67-45 for the specific inspection procedure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-320-2-fin-spar-attachment-bolts-inspection","history":"/api/acts/ad-cessna-320-2-fin-spar-attachment-bolts-inspection/history","analysis":"/api/acts/ad-cessna-320-2-fin-spar-attachment-bolts-inspection/analysis","conflicts":"/api/acts/ad-cessna-320-2-fin-spar-attachment-bolts-inspection/conflicts","importantCases":"/api/acts/ad-cessna-320-2-fin-spar-attachment-bolts-inspection/important-cases","documents":"/api/acts/ad-cessna-320-2-fin-spar-attachment-bolts-inspection/documents"}}