{"id":"F2006B06879","name":"AD/SD3-60/34 - Emergency Lighting System","slug":"ad-sd3-60-34-emergency-lighting-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114759,"registerId":"commonwealth-F2006B06879-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SD3-60/34 - Emergency Lighting 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)  Short SD3-60 Series Aeroplanes\n\n \n\nAD/SD3-60/34 Emergency Lighting System 10/92\n\nApplicability: SD3-60 series aircraft serial numbers SH3601 to SH3763 inclusive.\n\n \n\nRequirement: Action in accordance with the requirements of Short Brothers PLC Service Bulletin SD360-33-23 dated 1 June 1992.\n\n \n\nNote: This Service Bulletin has been classified as Mandatory by the CAA(UK).\n\n \n\nCompliance: As per the Requirement Document with a revised effective date of 17 September 1992 for Australian registered aircraft.\n\n \n\nBackground:  The manufacturer advises that the emergency lighting system does not meet the requirements of JAR/FAR 25.812 (f) (3) when the aircraft is on the ground and the aircraft's normal (generated) electrical power is lost. Compliance with this Directive corrects this deficiency.\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, targeted safety directive addressing a specific technical deficiency in a specific aircraft type. It has not expanded beyond its original purpose of mandating a safety modification to emergency lighting systems."},"complexity_factors":["Very short document — approximately 150 words of substantive content","Only 3 defined elements: specific aircraft serial number range, specific Service Bulletin reference, and specific regulatory standard (JAR/FAR 25.812)","No nested conditional logic or exceptions","Single compliance pathway: follow the referenced Service Bulletin","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Straightforward applicability test (serial number range)"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of Short SD3‑60 (Short 360) aeroplanes SN SH3601–SH3763 registered in Australia to carry out the manufacturer’s Service Bulletin SD360‑33‑23 (1 June 1992) to repair/modify the emergency lighting. It fixes a failure of the system to operate on-ground after loss of normal power (non‑compliance with JAR/FAR 25.812), closing a critical evacuation safety gap."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive implements the manufacturer’s corrective measure for the specific deficiency identified (emergency lighting non-compliance) and applies only to the listed SD3-60 serial numbers. It does not widen applicability beyond the affected aircraft or add requirements beyond those in the referenced Service Bulletin; therefore the scope remains consistent with the original corrective intent."},"complexity_factors":["Narrow applicability: applies only to SD3-60 serial numbers SH3601–SH3763 (limits volume of affected fleet).","Dependence on an external requirement document: compliance is achieved by following Short Brothers Service Bulletin SD360-33-23 dated 1 June 1992 (work content and technical detail sit in the SB, not the AD).","Regulatory cross-reference: references an international airworthiness standard (JAR/FAR 25.812(f)(3)), adding a technical performance benchmark to be met.","Fixed compliance timing: revised effective date (17 September 1992) creates a clear deadline for Australian-registered aircraft.","Operational and cost burden sits with operators: retrofit/inspection work, aircraft downtime and parts/labour are borne by operators, with no administrative discretion in the AD itself."],"plain_english_summary":"This Airworthiness Directive requires operators of Short SD3-60 aircraft serial numbers SH3601–SH3763 to implement the modifications or repairs specified in Short Brothers Service Bulletin SD360-33-23 (1 June 1992) to the emergency lighting system. The directive responds to the manufacturer’s advice that the system does not meet JAR/FAR 25.812(f)(3) when the aircraft is on the ground and normal generated electrical power is lost, and makes compliance mandatory for the affected Australian-registered aeroplanes."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sd3-60-34-emergency-lighting-system","history":"/api/acts/ad-sd3-60-34-emergency-lighting-system/history","analysis":"/api/acts/ad-sd3-60-34-emergency-lighting-system/analysis","conflicts":"/api/acts/ad-sd3-60-34-emergency-lighting-system/conflicts","importantCases":"/api/acts/ad-sd3-60-34-emergency-lighting-system/important-cases","documents":"/api/acts/ad-sd3-60-34-emergency-lighting-system/documents"}}