{"id":"F2006B11095","name":"AD/LEARJET 35/17 - Cabin Interior Liner in Areas of Emergency Exit Door - Inspection","slug":"ad-learjet-35-17-cabin-interior-liner-in-areas-of-emergency-exit-door-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56755,"registerId":"commonwealth-F2006B11095-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/LEARJET 35/17 - Cabin Interior Liner in Areas of Emergency Exit Door - Inspection","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)  Gates Learjet 35 and 36 Series Aeroplanes\n\n \n\nAD/LEARJET 35/17 Cabin Interior Liner in Areas of\n\nEmergency Exit Door - Inspection\n\n\n2/81\n\n \n\nApplicability: 35 and 36 series aircraft with S/Nos. 35-001 to 35-332, 35-334, 35-335, 35-336, 35-\n\n339, 35-340; and 36-001 to 36-045.\n\n \n\nDocument: Gates Learjet SB 35/36-52-5 dated 4 November 1980. Compliance: At next periodic inspection after 30 January 1981.\n\nBackground:  This Directive is issued to ensure cabin interior liner does not interfere with emergency exit door operation.\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, single-purpose airworthiness directive focused on a specific safety inspection for a narrow category of aircraft. It has not expanded beyond its original technical safety purpose."},"complexity_factors":["Very short document (approximately 150 words)","Only 4 defined elements: applicability (aircraft serial numbers), reference document, compliance deadline, and background","No cross-references to other legislation or regulations beyond the parent Civil Aviation Regulations 1998","Single, unconditional requirement with no exceptions or nested conditions","Straightforward applicability criteria using specific serial number ranges"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nIt requires owners and operators of certain Gates Learjet 35 and 36 series aircraft to inspect the cabin interior lining (the wall panels inside the passenger cabin) near emergency exit doors. The inspection ensures these interior panels aren't blocking or interfering with how the emergency doors open.\n\n**Who it affects:**\nOwners and operators of specific Learjet 35 and 36 series planes with serial numbers ranging from 35-001 to 35-340 (with some gaps) and 36-001 to 36-045.\n\n**Why it matters:**\nIf the cabin lining interferes with an emergency exit door, passengers and crew might not be able to escape quickly during an emergency. This directive prevents that safety risk by mandating a one-time inspection at the next scheduled maintenance check after 30 January 1981.\n\n**Key details:**\n- **Compliance deadline:** Next routine inspection after 30 January 1981\n- **Technical reference:** Gates Learjet Service Bulletin 35/36-52-5 (dated 4 November 1980)\n- **Original issue:** February 1981 (indicated by \"2/81\")"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive's scope is consistent with the stated purpose in the source: it targets a defined set of Learjet 35/36 serial-numbered aircraft and requires a one-time inspection at the next periodic inspection after 30 January 1981 to ensure the cabin liner does not interfere with emergency exit door operation (Applicability; Compliance; Background). There is no indication in the provided text that the scope was intended to be broader or narrower than the measure set out."},"complexity_factors":["Narrow applicability limited to specific serial numbers (Applicability)","Single, discrete action required — an inspection — rather than ongoing reporting or complex procedures (Compliance)","Action tied to the next periodic inspection, which simplifies scheduling but creates a fixed compliance window (Compliance)","Procedural detail delegated to a specific service bulletin (Document), so operators follow an existing maintenance instruction rather than interpret free-form requirements","Potential ambiguity about corrective actions if interference is found (Background), but the directive does not specify remedial steps"],"plain_english_summary":"This AD requires owners/operators of certain Gates Learjet 35/36 airframes (listed serial numbers) to have the cabin interior liner around the emergency exit door inspected at the next periodic inspection after 30 Jan 1981, using the referenced Gates Learjet Service Bulletin. Costs fall to the operator; the measure ensures the liner won’t impede emergency-exit operation and concentrates a modest, safety-driven maintenance burden on a small group of aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-learjet-35-17-cabin-interior-liner-in-areas-of-emergency-exit-door-inspection","history":"/api/acts/ad-learjet-35-17-cabin-interior-liner-in-areas-of-emergency-exit-door-inspection/history","analysis":"/api/acts/ad-learjet-35-17-cabin-interior-liner-in-areas-of-emergency-exit-door-inspection/analysis","conflicts":"/api/acts/ad-learjet-35-17-cabin-interior-liner-in-areas-of-emergency-exit-door-inspection/conflicts","importantCases":"/api/acts/ad-learjet-35-17-cabin-interior-liner-in-areas-of-emergency-exit-door-inspection/important-cases","documents":"/api/acts/ad-learjet-35-17-cabin-interior-liner-in-areas-of-emergency-exit-door-inspection/documents"}}