{"id":"F2006B07173","name":"AD/SWSA226/33 - Elevator Mass Balance Weights - Inspection","slug":"ad-swsa226-33-elevator-mass-balance-weights-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49087,"registerId":"commonwealth-F2006B07173-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SWSA226/33 - Elevator Mass Balance Weights - 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)  Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes\n\n \n\nAD/SWSA226/33 Elevator Mass Balance Weights - Inspection 8/81\n\nApplicability: All SA226 series aircraft.\n\n \n\nDocument: Fairchild Swearingen SB No. 27-029.\n\n \n\nCompliance: 1. For aeroplanes with less than 1000 hours time in service, 240 hours time in service after 31 August 1981.\n\n \n\n2. For aeroplanes which have achieved 1000 hours time in service, within 120 hours time in service after 31 August 1981.\n\n \n\nBackground:  Inspection is required to ensure that the balance weight is firmly attached to the elevator.\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":1656},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains a narrow, technical scope focused solely on inspecting elevator mass balance weights on SA226 series aircraft. It addresses a specific identified safety risk without expanding to other aircraft systems or types."},"complexity_factors":["Single, clearly defined mechanical component (elevator mass balance weights)","Simple binary condition for compliance timing (only two categories based on flight hours)","No nested exceptions or conditional sub-clauses","Minimal cross-referencing (only to parent Civil Aviation Regulations and manufacturer service bulletin)","Short, single-purpose directive without interpretation sections or defined terms"],"plain_english_summary":"This mandatory airworthiness directive requires owners/operators of Fairchild Swearingen SA226 aircraft to inspect the elevator mass balance weights to verify they are securely attached. Aircraft with under 1,000 total hours must inspect within 240 flight hours after 31 Aug 1981; those with 1,000 or more within 120 flight hours.  \n\nLoose or detached weights can cause loss of pitch control and possible crash; the directive cites Fairchild Swearingen Service Bulletin No. 27‑029 for the inspection procedure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-swsa226-33-elevator-mass-balance-weights-inspection","history":"/api/acts/ad-swsa226-33-elevator-mass-balance-weights-inspection/history","analysis":"/api/acts/ad-swsa226-33-elevator-mass-balance-weights-inspection/analysis","conflicts":"/api/acts/ad-swsa226-33-elevator-mass-balance-weights-inspection/conflicts","importantCases":"/api/acts/ad-swsa226-33-elevator-mass-balance-weights-inspection/important-cases","documents":"/api/acts/ad-swsa226-33-elevator-mass-balance-weights-inspection/documents"}}