{"id":"F2006B10134","name":"AD/G73/22 - Elevator Control System","slug":"ad-g73-22-elevator-control-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55703,"registerId":"commonwealth-F2006B10134-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/G73/22 - Elevator Control System","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)  Frakes (Grumman) G73 Series Aeroplanes\n\n \n\nAD/G73/22 Elevator Control System 3/88\n\nApplicability: All models.\n\n \n\nRequirement: Action in accordance with Frakes Aviation S.B. G-73-FA26.\n\n \n\nNote: FAA AD 8-25-08 refers.\n\n \n\nCompliance: Prior to 30 March 1988.\n\n \n\nBackground: This Directive is prompted by overseas reports of elevator control system jamming in the full nose-up position during take-off.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive addressing a specific mechanical defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating elevator control system repairs."},"complexity_factors":["Extremely short document (under 200 words)","Only 1 defined applicability (\"All models\")","Single, unambiguous compliance action (follow the service bulletin)","No cross-references to other legislation or regulations beyond a single note about the FAA directive","No conditional logic, exceptions, or nested requirements","Clear, fixed deadline with no alternative compliance methods"],"plain_english_summary":"**What this is:** An Airworthiness Directive (AD) — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) telling aircraft owners they must fix a dangerous mechanical problem.\n\n**What it does:** Orders owners and operators of **Frakes (Grumman) G73 series aeroplanes** (all models) to inspect and repair their **elevator control system** following a specific manufacturer's service bulletin (Frakes Aviation S.B. G-73-FA26). The elevator is the part of the tail that makes the plane pitch up and down — if it jams \"full nose-up\" during take-off, the aircraft could stall and crash.\n\n**Why it matters:** Overseas reports revealed the elevator could jam in the full up position during take-off, creating an immediate flight safety risk. This directive makes the fix **legally compulsory** before 30 March 1988.\n\n**Who must comply:** Anyone operating or maintaining a Frakes G73 aircraft in Australia.\n\n**Key details:**\n- **Compliance deadline:** Before 30 March 1988\n- **Technical standard:** Must follow Frakes Aviation Service Bulletin G-73-FA26\n- **Related US rule:** References FAA AD 8-25-08 (the American equivalent safety order)"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The supplied text sets a single, specific requirement that applies to all models and prescribes compliance by a fixed date. The document does not indicate any amendment or change from an earlier stated scope within the text provided, so there is no evidence in this extract that the AD’s scope has changed from an original intent."},"complexity_factors":["Single, narrowly framed requirement: one service bulletin (Frakes Aviation S.B. G-73-FA26) is specified as the remedial action (Requirement).","Clear, single compliance deadline (Prior to 30 March 1988) reduces timing ambiguity (Compliance).","Applicability covers all models of the G73 series, so scope is broad in population but narrow in technical content (Applicability: All models).","Dependence on an external document (manufacturer’s service bulletin) creates potential operational complexity not detailed in the AD (Requirement).","Reference to an FAA AD suggests cross-jurisdictional alignment but does not add procedural steps in this text (Note)."],"plain_english_summary":"This Airworthiness Directive requires all Frakes (Grumman) G73 series operators to carry out the work specified in Frakes Aviation Service Bulletin G-73-FA26 by 30 March 1988 to address reports of the elevator control jamming full nose-up during takeoff. It affects aircraft owners/operators and maintenance organisations, who bear the costs and must schedule the mandated maintenance; the AD references a related FAA AD for the same issue."}},"importantCases":[],"_links":{"self":"/api/acts/ad-g73-22-elevator-control-system","history":"/api/acts/ad-g73-22-elevator-control-system/history","analysis":"/api/acts/ad-g73-22-elevator-control-system/analysis","conflicts":"/api/acts/ad-g73-22-elevator-control-system/conflicts","importantCases":"/api/acts/ad-g73-22-elevator-control-system/important-cases","documents":"/api/acts/ad-g73-22-elevator-control-system/documents"}}