{"id":"F2006B10391","name":"AD/HS 125/113 Amdt 1 - MLG Side Stay Arm Assemblies and Torque Links","slug":"ad-hs-125-113-amdt-1-mlg-side-stay-arm-assemblies-and-torque-links","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116047,"registerId":"commonwealth-F2006B10391-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/113 Amdt 1 - MLG Side Stay Arm Assemblies and Torque Links","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 125/113\n\nAmdt 1\n\n\nMLG Side Stay Arm Assemblies and Torque Links\n\n\n5/98\n\n \n\nApplicability: Series 800A and 800B.\n\n \n\nRequirement: Action in accordance with BAe SB 32-227. Compliance: Prior to 30 November 1990.\n\nThe compliance of the original issue of this directive remains unchanged. This amendment becomes effective on 23 April 1998.\n\nBackground: Damage and cracks in main landing gear side stay have been reported to manufacturer. If not detected these could lead to landing gear failure. This requirement is mandatory in Country of origin.\n\n \n\nAmendment 1 is issued to re-instate this directive to the series.\n\n \n\nThe original issue of this Airworthiness Directive became effective on 30 November 1990.\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\n1\n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment does not expand the scope beyond the original 1990 directive. It simply re-instates the same requirements to the regulatory series without altering applicability, requirements, or compliance dates."},"complexity_factors":["Very short document (approximately 200 words)","Only 2 defined applicability criteria (Series 800A and 800B)","Single cross-reference to external technical document (BAe SB 32-227)","No nested conditional logic or exceptions","Straightforward compliance deadline with no alternative methods or phased implementation","Amendment structure is simple — merely re-instating original directive without substantive changes"],"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) that requires specific aircraft owners or operators to take action to fix a known safety problem.\n\n**What it does:**\n- **Targets:** British Aerospace BAe 125 Series 800A and 800B business jets\n- **The problem:** Cracks and damage have been found in the **main landing gear side stay arm assemblies and torque links** (parts that help support and stabilise the wheels when the plane is on the ground). If these cracks aren't found and fixed, the landing gear could fail — potentially causing a crash during landing or takeoff.\n- **What must be done:** Aircraft operators must follow the manufacturer's Service Bulletin (BAe SB 32-227) to inspect and repair these parts.\n- **Deadline:** The work had to be completed before 30 November 1990 (for the original directive). This \"Amendment 1\" simply puts the directive back into force as of 23 April 1998 — it doesn't change the original compliance deadline.\n\n**Why it matters:** Landing gear failure is catastrophic. This directive ensures Australian-registered aircraft of this type are inspected for a known defect that the manufacturer and overseas regulators have already identified as dangerous. Even though the compliance date has passed, this amendment ensures the directive remains active and enforceable in Australian law."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The amendment reinstates the existing directive for BAe 125 Series 800A/800B but does not change the directive's applicability or compliance requirements from the original issue. The original compliance deadline (prior to 30 November 1990) and the requirement to follow BAe SB 32-227 remain in place; the amendment's effect is administrative reinstatement (Amendment 1; Compliance; Requirement)."},"complexity_factors":["Delegation of technical detail to an external document (BAe SB 32-227) rather than containing inspection/repair steps in the directive itself (Requirement: Action in accordance with BAe SB 32-227).","Retroactive compliance deadline that precedes the amendment's effective date, creating potential implementation and record-keeping confusion (Compliance: Prior to 30 November 1990; Amendment effective 23 April 1998).","Narrow applicability limited to BAe 125 Series 800A and 800B, reducing breadth but concentrating impacts on a small set of operators (Applicability: Series 800A and 800B).","Administrative action is reinstatement rather than substantive change; the directive preserves original compliance terms (The compliance of the original issue of this directive remains unchanged; Amendment 1 is issued to re-instate this directive to the series).","Operational and cost burden falls on aircraft owners/operators to inspect and remediate reported damage (Background: Damage and cracks reported; could lead to landing gear failure)."],"plain_english_summary":"This amendment reinstates an airworthiness directive requiring operators of British Aerospace BAe 125 Series 800A and 800B aeroplanes to carry out inspections and any corrective action on main landing gear side stay arm assemblies and torque links in accordance with BAe Service Bulletin 32-227, with compliance required prior to 30 November 1990. The measure responds to reported damage and cracking that could lead to landing gear failure; the obligation and applicability remain as set in the original directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-113-amdt-1-mlg-side-stay-arm-assemblies-and-torque-links","history":"/api/acts/ad-hs-125-113-amdt-1-mlg-side-stay-arm-assemblies-and-torque-links/history","analysis":"/api/acts/ad-hs-125-113-amdt-1-mlg-side-stay-arm-assemblies-and-torque-links/analysis","conflicts":"/api/acts/ad-hs-125-113-amdt-1-mlg-side-stay-arm-assemblies-and-torque-links/conflicts","importantCases":"/api/acts/ad-hs-125-113-amdt-1-mlg-side-stay-arm-assemblies-and-torque-links/important-cases","documents":"/api/acts/ad-hs-125-113-amdt-1-mlg-side-stay-arm-assemblies-and-torque-links/documents"}}