{"id":"F2006B10386","name":"AD/HS 125/108 - Flap Inboard Hinge","slug":"ad-hs-125-108-flap-inboard-hinge","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116037,"registerId":"commonwealth-F2006B10386-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/108 - Flap Inboard Hinge","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)  British Aerospace BAe 125 Series Aeroplanes\n\n \n\nAD/HS 125/108 Flap Inboard Hinge 8/90\n\nApplicability: As listed in the Requirement Document.\n\n \n\nRequirement: Action in accordance with Hawker Siddeley SB 27-112. Compliance:  In accordance with the Requirement Document.\n\nBackground: This Directive is to reduce the possibility of flap damage when landing on heavily watered or slush covered runways.\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":2,"scope_assessment":{"changed":false,"description":"The text provides no indication that the directive alters or narrows an earlier scope. It states a single, specific requirement (perform the action in SB 27-112) and points to the Requirement Document for applicability and compliance details. There is no language in the supplied text to show a change from an original intent or prior scope."},"complexity_factors":["Directive text is very short and delegates essential details to external documents (Hawker Siddeley SB 27-112 and a Requirement Document).","Applicability and compliance schedules are not stated in the AD itself but are contained in the Requirement Document, creating dependency on external materials.","Technical actions are not described in the AD; practical implementation depends entirely on the service bulletin's content.","Administrative layering: this is an airworthiness directive under Part 39 (Civil Aviation Safety Authority), so legal effect requires reference to regulatory framework and external documents."],"plain_english_summary":"This Civil Aviation Safety Authority airworthiness directive requires British Aerospace BAe 125 aeroplanes listed in a separate Requirement Document to carry out the action specified in Hawker Siddeley Service Bulletin SB 27-112.  \n\nIt aims to reduce flap damage from landings on heavily watered or slush‑covered runways; applicability, compliance timing and practical details are defined in the Requirement Document and the service bulletin."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive focused specifically on flap hinge integrity in wet runway conditions. It has not expanded beyond its original technical safety purpose."},"complexity_factors":["Extremely short document (under 200 words)","Only 2 substantive operative provisions (Applicability and Requirement)","No defined terms section — relies entirely on external reference to 'Requirement Document'","Single cross-reference to manufacturer service bulletin (Hawker Siddeley SB 27-112)","No conditional logic, exceptions, or nested provisions","Purpose is purely administrative: mandating compliance with external technical standard"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:** It requires owners and operators of **British Aerospace BAe 125 series aircraft** to perform specific maintenance actions on the **inboard hinge of the aircraft's flaps** (the moving surfaces on the wings that help control lift during takeoff and landing).\n\n**Why it matters:** The directive addresses a safety risk where flaps could be damaged when landing on runways covered in water or slush. The required actions come from a manufacturer service bulletin (Hawker Siddeley SB 27-112) and must be completed according to the accompanying Requirement Document.\n\n**Who must comply:** Anyone operating the affected BAe 125 aircraft in Australia must ensure this maintenance is performed to keep their aircraft airworthy (legally safe to fly)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-108-flap-inboard-hinge","history":"/api/acts/ad-hs-125-108-flap-inboard-hinge/history","analysis":"/api/acts/ad-hs-125-108-flap-inboard-hinge/analysis","conflicts":"/api/acts/ad-hs-125-108-flap-inboard-hinge/conflicts","importantCases":"/api/acts/ad-hs-125-108-flap-inboard-hinge/important-cases","documents":"/api/acts/ad-hs-125-108-flap-inboard-hinge/documents"}}