{"id":"F2006L03844","name":"AD/CESSNA 310/33 Amdt 2 - Wing and Airframe","slug":"ad-cessna-310-33-amdt-2-wing-and-airframe","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":137722,"registerId":"commonwealth-F2006L03844-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","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 310/33 Amdt 2 | Wing and Airframe | 13/2006 |\n| ----------------------- | ----------------- | ------- |\n\n| Applicability: | All Cessna model 310 series aircraft which are not maintained to Cessna’s SID program.(See Airworthiness Bulletin 02-007 on www.casa.gov.au)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Retire from service the wing main spar lower cap and the upper and lower attach fittings before 19,200 hours time-in-service or 29,500 flights, whichever occurs first.2. Retire from service the whole airframe at 38,400 hours time-in-service or 59,000 flights, whichever occurs first.Note 1: While Requirement 1 excludes the carry-through and its attach fittings, we recommend replacement at the same time - or Cessna’s SID program, which has found cracks in the carry-through and its attach fittings on Cessna 402Cs, which are similar.Note 2: Deleted.Note 3: If there is no record of time for a flight, assume 0.5 hours. |\n| Compliance:    | This Amendment becomes effective on 21 December 2006.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |\n| Background:    | This Airworthiness Directive retires structure from service, before dangerous fatigue cracks are likely, if aircraft are not on Cessna’s SID program.Amendment 2:Exempts aircraft on Cessna’s SID program (another way of managing fatigue);Changes the Note in the Requirement to Note 1, a recommendation to change the carry-through and its attach fittings;Deletes Note 2 (the SID is what it foreshadowed);                                                                                                                                                                                                                               |\n\n|     | Changes Note 1 to Note 3, advice on what to do if flight time was not recorded. |\n| --- | ------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n9 November 2006","sortOrder":0},{"sectionNumber":"AD/CESSNA 310/33 Amdt 2","sectionType":"part","heading":"AD/CESSNA 310/33 Amdt 2","content":"## AD/CESSNA 310/33 Amdt 2","sortOrder":1},{"sectionNumber":"Wing and Airframe","sectionType":"part","heading":"Wing and Airframe","content":"## Wing and Airframe","sortOrder":2},{"sectionNumber":"13/2006","sectionType":"part","heading":"13/2006","content":"## 13/2006","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original purpose: managing fatigue life limits for Cessna 310 airframes. Amendment 2 merely refines the existing framework by adding the SID program exemption (a logical alternative compliance path) and clarifying record-keeping assumptions. The scope has not expanded beyond structural fatigue management for this specific aircraft type."},"complexity_factors":["Very short document (approximately 300 words)","Only 2 substantive requirements with clear numerical thresholds","Single exemption (SID program participation)","Minimal defined terms (only 'time-in-service' and 'flights' require basic interpretation)","No cross-references to other legislation beyond a website reference to Airworthiness Bulletin 02-007","Simple conditional logic (whichever occurs first comparisons)","Straightforward amendment history explaining changes from previous versions"],"plain_english_summary":"This AD mandates firm retirement limits for critical structure on Cessna 310 series aircraft: wing spars and fittings removed at 19,200 flight hours/29,500 cycles and the whole airframe at 38,400 flight hours/59,000 cycles. It applies to owners/operators not enrolled in Cessna's SID fatigue‑inspection program.\n\nIt matters because metal fatigue can cause catastrophic failure; the AD forces retirement before unsafe life limits unless the intensive SID inspection regime is used."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 2 narrowed the AD's scope by exempting Cessna 310 aircraft enrolled in Cessna’s SID program (Background: \"Exempts aircraft on Cessna’s SID program\"). It also converted a prior mandatory note about the carry-through into a recommendation (Requirement Note 1) and deleted a previously foreshadowing Note (Background: \"Deletes Note 2\"). These edits reduce the number of aircraft required to undergo mandatory retirements while keeping the retirement hours/flights thresholds for non-SID aircraft unchanged."},"complexity_factors":["Dual retirement limits expressed as hours or flights, whichever occurs first (Requirement: \"before 19,200 hours time-in-service or 29,500 flights...\"; whole airframe: \"38,400 hours... or 59,000 flights...\")","Limited applicability/exemption for aircraft on Cessna's SID program (Applicability: \"All Cessna model 310 series aircraft which are not maintained to Cessna’s SID program\"; Background: \"Exempts aircraft on Cessna’s SID program\")","Recommendation versus mandatory treatment for related structure: carry-through and attach fittings excluded from the mandatory Requirement but recommended for replacement (Requirement Note 1: \"we recommend replacement...\")","Record-keeping implication for flight time: default assumption when flight time not recorded (Requirement Note 3: \"If there is no record of time for a flight, assume 0.5 hours\")","Amendment history changes that alter obligations and guidance (Background: lists changes under Amendment 2, e.g. exemptions and note deletions), requiring operators to track current amendment status","Compliance date creates a hard deadline for operators (Compliance: \"This Amendment becomes effective on 21 December 2006\")"],"plain_english_summary":"This Airworthiness Directive requires most Cessna 310 series aircraft (those not enrolled in Cessna’s SID fatigue-monitoring program) to retire specified wing spar components by set hours or flight counts, and to retire the whole airframe at higher service limits. It matters to owners and operators because it mandates physical retirement of structure on a defined schedule to avoid fatigue-related failure risks."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-310-33-amdt-2-wing-and-airframe","history":"/api/acts/ad-cessna-310-33-amdt-2-wing-and-airframe/history","analysis":"/api/acts/ad-cessna-310-33-amdt-2-wing-and-airframe/analysis","conflicts":"/api/acts/ad-cessna-310-33-amdt-2-wing-and-airframe/conflicts","importantCases":"/api/acts/ad-cessna-310-33-amdt-2-wing-and-airframe/important-cases","documents":"/api/acts/ad-cessna-310-33-amdt-2-wing-and-airframe/documents"}}