{"id":"F2006B08356","name":"AD/CESSNA 400/73 - Main Landing Gear Tyre Clearance Inspection","slug":"ad-cessna-400-73-main-landing-gear-tyre-clearance-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115763,"registerId":"commonwealth-F2006B08356-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/73 - Main Landing Gear Tyre Clearance 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 400 Series Aeroplanes\n\n \n\nAD/CESSNA 400/73 Main Landing Gear Tyre Clearance Inspection\n\n\n9/80\n\n \n\nApplicability: All models 441 with S/Nos. 441-0001 to 441-0143 and 411-0145 to 441-0148. Document:               Cessna Customer Care SIL No. PJ80-9 & 9A.\n\nCompliance: As per requirement document.\n\n \n\nBackground: In some other similar 400 series aeroplanes jamming of the MLG has occurred due to lack of tyre clearance in the wheel well opening.\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":1203},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This appears to be the original issuance of the directive. It maintains a tightly scoped focus on the specific mechanical defect (tyre clearance) affecting the identified serial numbers, with no evidence of expansion beyond the original safety purpose."},"complexity_factors":["Extremely brief directive (approximately 100 words) with minimal text","Defers all technical inspection requirements to external Service Information Letters","Narrow applicability restricted to specific aircraft serial number ranges","No defined terms, conditional logic, or exceptions within the directive text"],"plain_english_summary":"**What this does:** This Airworthiness Directive mandates that owners and operators of specific Cessna 441 aircraft inspect the main landing gear tyres for adequate clearance within the wheel well.\n\n**Who it affects:** Only Cessna Model 441 aircraft with serial numbers 441-0001 through 441-0143 and 441-0145 through 441-0148 (note: the document contains a typo listing \"411-0145\" but contextually refers to the 441 series).\n\n**Why it matters:** Similar aircraft in the 400 series have experienced **main landing gear jamming** caused by insufficient tyre clearance in the wheel well opening — a potentially catastrophic failure during landing or takeoff. The directive requires compliance with specific Cessna Service Information Letters (PJ80-9 and PJ80-9A) to ensure proper clearance and prevent gear failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-73-main-landing-gear-tyre-clearance-inspection","history":"/api/acts/ad-cessna-400-73-main-landing-gear-tyre-clearance-inspection/history","analysis":"/api/acts/ad-cessna-400-73-main-landing-gear-tyre-clearance-inspection/analysis","conflicts":"/api/acts/ad-cessna-400-73-main-landing-gear-tyre-clearance-inspection/conflicts","importantCases":"/api/acts/ad-cessna-400-73-main-landing-gear-tyre-clearance-inspection/important-cases","documents":"/api/acts/ad-cessna-400-73-main-landing-gear-tyre-clearance-inspection/documents"}}