{"id":"F2009L03376","name":"AD/CESSNA 310/35 Amdt 1 - Main Landing Gear Aft Trunnion Support Spar - Inspection and Modification - CANCELLED","slug":"ad-cessna-310-35-amdt-1-main-landing-gear-aft-trunnion-support-spar-inspection-and-modification-canc","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":140960,"registerId":"commonwealth-F2009L03376-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 310 Series Aeroplanes","sectionType":"division","heading":"Cessna 310 Series Aeroplanes","content":"### Cessna 310 Series Aeroplanes\n\n| AD/CESSNA 310/35 Amdt 1 | Main Landing Gear Aft Trunnion Support Spar - Inspection and Modification | 10/2009 |\n| ----------------------- | ------------------------------------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                 |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 24 September 2009.                                                                                                                                                                                                                 |\n| Background:  | This unique Australian AD specified periodic inspection in accordance with Cessna SL ME74-17. Action was required at intervals not exceeding 100 hours time in service. Continued use of an AD to mandate this periodic inspection is no longer justified. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n12 August 2009","sortOrder":0},{"sectionNumber":"AD/CESSNA 310/35 Amdt 1","sectionType":"part","heading":"AD/CESSNA 310/35 Amdt 1","content":"## AD/CESSNA 310/35 Amdt 1","sortOrder":1},{"sectionNumber":"Main Landing Gear Aft Trunnion Support S","sectionType":"part","heading":"Main Landing Gear Aft Trunnion Support Spar - Inspection and Modification","content":"## Main Landing Gear Aft Trunnion Support Spar - Inspection and Modification","sortOrder":2},{"sectionNumber":"10/2009","sectionType":"part","heading":"10/2009","content":"## 10/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1403},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"This amendment fundamentally alters the scope from imposing mandatory safety inspections (every 100 hours of flight time) to complete cancellation of those requirements. The instrument has transitioned from an active regulatory mandate to a nullified status."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No cross-references to other legislation beyond identifying the cancelled AD","Extremely short (under 200 words of substantive content)","No conditional logic or exceptions"],"plain_english_summary":"This instrument rescinds the previous Australian Airworthiness Directive that required 100‑hour inspections of the Cessna 310 main landing gear aft trunnion support spar. As of 24 September 2009, those mandatory inspections and the AD are cancelled, relieving owners, operators and maintenance engineers of that formal requirement. Operators may still follow the manufacturer’s service letter voluntarily, but CASA no longer mandates it."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-310-35-amdt-1-main-landing-gear-aft-trunnion-support-spar-inspection-and-modification-canc","history":"/api/acts/ad-cessna-310-35-amdt-1-main-landing-gear-aft-trunnion-support-spar-inspection-and-modification-canc/history","analysis":"/api/acts/ad-cessna-310-35-amdt-1-main-landing-gear-aft-trunnion-support-spar-inspection-and-modification-canc/analysis","conflicts":"/api/acts/ad-cessna-310-35-amdt-1-main-landing-gear-aft-trunnion-support-spar-inspection-and-modification-canc/conflicts","importantCases":"/api/acts/ad-cessna-310-35-amdt-1-main-landing-gear-aft-trunnion-support-spar-inspection-and-modification-canc/important-cases","documents":"/api/acts/ad-cessna-310-35-amdt-1-main-landing-gear-aft-trunnion-support-spar-inspection-and-modification-canc/documents"}}