{"id":"F2006B08173","name":"AD/CESSNA 310/45 - Main Landing Gear Down Lock Pin and Set Screw - Inspection","slug":"ad-cessna-310-45-main-landing-gear-down-lock-pin-and-set-screw-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115365,"registerId":"commonwealth-F2006B08173-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 310/45 - Main Landing Gear Down Lock Pin and Set Screw - 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 310 Series Aeroplanes\n\n \n\nAD/CESSNA 310/45 Main Landing Gear Down Lock Pin\n\nand Set Screw - Inspection\n\n\n8/76\n\n \n\nApplicability: All models with S/Nos. 310L0001 to 310R0253, 0255 to 0278, 0280 to 0308, 0310,\n\n0311, 0313, 0314, 0315, 0317, 0318, 0320, 0322, 0325, 0326.\n\n \n\nDocument: Cessna SL ME76-4.\n\n \n\nCompliance: Within 100 hours time in service after 31 August 1976.\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":1228},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific mechanical defect in specific aircraft. It has not expanded beyond its original purpose of mandating a one-time inspection for the landing gear down lock pin and set screw on affected Cessna 310 models."},"complexity_factors":["Single, unambiguous requirement (inspection of one specific component)","No defined terms section or complex legislative cross-references","Clear applicability limited to specific aircraft serial numbers","Simple compliance condition based on flight hours after a fixed date","Document consists of only four substantive fields (applicability, document reference, compliance, and title)"],"plain_english_summary":"**What this is:** An aviation safety directive (called an Airworthiness Directive or AD) issued under the Civil Aviation Regulations 1998.\n\n**What it requires:** Owners and operators of specific Cessna 310 aircraft must inspect the **main landing gear down lock pin and set screw** within 100 flight hours after 31 August 1976.\n\n**Which aircraft:** Only applies to specific serial numbers of Cessna 310L and 310R models (serial numbers ranging from 310L0001 through various ranges up to 0326, with specific exclusions).\n\n**Why it matters:** This inspection prevents potential failure of the landing gear locking mechanism, which could cause the gear to collapse during landing. The directive references a Cessna Service Letter (SL ME76-4) that provides the technical inspection details.\n\n**Key deadline:** The inspection must be completed within 100 hours of flight time (time in service) after 31 August 1976."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-310-45-main-landing-gear-down-lock-pin-and-set-screw-inspection","history":"/api/acts/ad-cessna-310-45-main-landing-gear-down-lock-pin-and-set-screw-inspection/history","analysis":"/api/acts/ad-cessna-310-45-main-landing-gear-down-lock-pin-and-set-screw-inspection/analysis","conflicts":"/api/acts/ad-cessna-310-45-main-landing-gear-down-lock-pin-and-set-screw-inspection/conflicts","importantCases":"/api/acts/ad-cessna-310-45-main-landing-gear-down-lock-pin-and-set-screw-inspection/important-cases","documents":"/api/acts/ad-cessna-310-45-main-landing-gear-down-lock-pin-and-set-screw-inspection/documents"}}