{"id":"F2006B08446","name":"AD/CESSNA 650/3 - Elevator Torque Tube Inboard Attach Fittings","slug":"ad-cessna-650-3-elevator-torque-tube-inboard-attach-fittings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115944,"registerId":"commonwealth-F2006B08446-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 650/3 - Elevator Torque Tube Inboard Attach Fittings","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 650 (Citation III) Series Aeroplanes\n\n \n\nAD/CESSNA 650/3 Elevator Torque Tube Inboard\n\nAttach Fittings\n\nApplicability: Model 650 S/n -0001 to -0219 and 7001 to -7013 inclusive.\n\n \n\nRequirement: Inspect the inboard elevator torque tube fittings visually for cracking, and in accordance with Cessna Alert Service Letter SLA650-27-30.\n\n \n\nNote: FAA AD 92-27-08 refers.\n\n \n\nCompliance: Within 25 hours time in service after 25 January 1993.\n\n\n3/93\n\nDM\n\n \n\nBackground: There has been a report of cracking of the elevator inboard attach fitting and this Directive is issued to preclude potential loss of elevator control.\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":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive confines action to a defined set of Cessna 650 serial numbers and mandates a visual inspection for cracking of the inboard elevator torque tube attach fittings within a set timeframe. The instrument implements a targeted safety inspection rather than expanding into other components, aircraft types, or permanent certification changes; therefore its scope remains limited to the specific inspection obligation described. (See: \"Applicability\", \"Requirement\", \"Compliance\", \"Background\".)"},"complexity_factors":["Narrow technical focus: single component (elevator torque tube inboard attach fittings) and single inspection task (visual check). (Requirement)","Limited applicability defined by specific serial-number ranges, requiring operators to check applicability carefully. (Applicability)","Short compliance window (25 hours after 25 January 1993) increases operational scheduling pressure. (Compliance)","Reliance on an external document (Cessna Alert Service Letter SLA650-27-30) for the inspection procedure and any follow-up steps introduces dependency on another source not reproduced here. (Requirement)","Cross-reference to FAA AD increases cross-jurisdictional linkage and may require consulting another regulatory document. (Note)"],"plain_english_summary":"This directive requires owners/operators of Cessna Model 650 serials -0001 to -0219 and 7001 to -7013 to perform a visual inspection of the inboard elevator torque tube attach fittings for cracking, following Cessna Alert Service Letter SLA650-27-30, within 25 hours TIS after 25 January 1993. It aims to prevent possible loss of elevator control; inspection costs and any follow‑up actions are the operator’s responsibility."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in specific aircraft. It has not expanded beyond its original purpose of mandating inspection of elevator fittings on affected Cessna 650 models."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 1 defined term implicitly used ('time in service' — standard aviation term)","No cross-references to other legislation or complex conditional logic","Single, straightforward compliance requirement with clear deadline","No exceptions, exemptions, or nested conditions","Simple applicability criteria based on aircraft serial numbers only"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nOrders owners and operators of certain Cessna 650 (Citation III) business jets to inspect a specific part — the **elevator torque tube inboard attach fittings** — for cracks. The elevator is the control surface that makes the plane pitch up and down, so if this fitting fails, the pilot could lose control of the aircraft.\n\n**Who it affects:**\nAnyone who owns or operates Cessna 650 aircraft with serial numbers -0001 to -0219 and 7001 to -7013. This covers early production models of the Citation III series.\n\n**What must be done:**\n- **Visual inspection** of the inboard elevator torque tube fittings to check for cracking\n- Follow the specific procedure in **Cessna Alert Service Letter SLA650-27-30**\n- Complete this within **25 flight hours** after 25 January 1993\n\n**Why it matters:**\nThere was a reported case of this fitting cracking. If it breaks completely, the pilot could lose elevator control — a potentially catastrophic failure. This directive prevents that by catching cracks before they cause an accident.\n\n**Note:** This references an American FAA directive (AD 92-27-08), showing Australia often aligns with US aviation safety standards."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-650-3-elevator-torque-tube-inboard-attach-fittings","history":"/api/acts/ad-cessna-650-3-elevator-torque-tube-inboard-attach-fittings/history","analysis":"/api/acts/ad-cessna-650-3-elevator-torque-tube-inboard-attach-fittings/analysis","conflicts":"/api/acts/ad-cessna-650-3-elevator-torque-tube-inboard-attach-fittings/conflicts","importantCases":"/api/acts/ad-cessna-650-3-elevator-torque-tube-inboard-attach-fittings/important-cases","documents":"/api/acts/ad-cessna-650-3-elevator-torque-tube-inboard-attach-fittings/documents"}}