{"id":"F2006B04135","name":"AD/BEECH 65/39 Amdt 1 - Nacelle Interior Fire Seal","slug":"ad-beech-65-39-amdt-1-nacelle-interior-fire-seal","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43848,"registerId":"commonwealth-F2006B04135-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 65/39 Amdt 1 - Nacelle Interior Fire Seal","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)  Beechcraft 65 and 70 (Queen Air) Series Aeroplanes\n\n \n\nAD/BEECH 65/39\n\nAmdt 1\n\n\nNacelle Interior Fire Seal 3/89\n\n \n\nApplicability: All Models Queen Air 65, A65 and A65-8200 with S/Nos. L-1, L-2, L-6, LF-7, LF-8 & LC-1 to LC-335. Models 65-80, 65-A80, 65-A80-8800 and 65-B80 with S/Nos.\n\nLD-1 to LD-475. Model 65-88 with S/Nos. LP-1 to LP-26, LP-28 & LP-30 to LP-47.\n\nModel 70 with S/Nos LB-1 and on.\n\n \n\nRequirement: Install Beech Nacelle Interior Fire Seal Kits P/N 65-9008-1, for all listed models except Model 65-88, for which use P/N 65-9008-3.\n\n \n\nCompliance: Within 100 hours’ time in service after 30 September 1974. Background: Amendment 1 consolidates Queen Air series 65 and 70 aircraft.\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":true,"description":"The AD’s Background states that Amendment 1 consolidates Queen Air series 65 and 70 aircraft (Background). That consolidation indicates the amendment modified the AD’s scope by combining applicability across those series and listing specific models and serial-number blocks to which the installation requirement applies."},"complexity_factors":["Single, discrete mandatory action: install a specified kit (Requirement).","Multiple model types and explicit serial-number ranges to check for applicability (Applicability).","One model series requires a different part number, creating a small divergence in technical steps (Requirement).","Fixed, short compliance window tied to aircraft time-in-service (100 hours after a specific date) creates scheduling constraint (Compliance).","Background consolidation of model series alters applicability coverage and requires operators to re-check applicability (Background)."],"plain_english_summary":"This AD mandates installation of a specified nacelle interior fire‑seal kit on certain Beechcraft Queen Air models/serial ranges, with owners/operators of the listed aircraft responsible for parts and installation. All affected models must comply within 100 hours’ time in service after 30 September 1974; Model 65‑88 requires a different kit part number than the other listed types. The amendment also consolidates Queen Air series 65 and 70 applicability."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment performs a simple consolidation of existing requirements for related aircraft models (Queen Air 65 series and Model 70) into a single directive. The scope remains tightly focused on the original safety purpose: installing fire seals in engine nacelles. There is no expansion beyond this specific technical modification."},"complexity_factors":["Very short document (approximately 200 words)","Only 2 defined part numbers for the required kits","Simple applicability section listing specific aircraft models and serial number ranges","Single straightforward compliance requirement with clear deadline","No cross-references to other legislation or regulations","No conditional logic or nested exceptions","Plain language background explanation"],"plain_english_summary":"**What this is:** An Airworthiness Directive (AD) — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or modifications to aircraft.\n\n**What it does:** This directive orders owners and operators of specific Beechcraft Queen Air and Model 70 aircraft to install fire-resistant seals inside the engine nacelles (the housings around the engines). These seals prevent fire from spreading inside the engine compartment.\n\n**Who it affects:** Owners and operators of specific Beechcraft aircraft models:\n- Queen Air 65, A65, and A65-8200 (specific serial numbers)\n- Models 65-80, 65-A80, 65-A80-8800, and 65-B80 (specific serial numbers)\n- Model 65-88 (specific serial numbers)\n- Model 70 (all serial numbers from LB-1 onwards)\n\n**What must be done:** Install specific Beechcraft fire seal kits:\n- Part number 65-9008-1 for most models\n- Part number 65-9008-3 specifically for Model 65-88\n\n**When:** Within 100 hours of flight time after 30 September 1974.\n\n**Why it matters:** Engine fires in aircraft are extremely dangerous. These fire seals act as barriers to contain fires and prevent them from spreading to other parts of the aircraft, protecting passengers and crew. This amendment consolidates earlier separate directives for different aircraft models into one unified requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-65-39-amdt-1-nacelle-interior-fire-seal","history":"/api/acts/ad-beech-65-39-amdt-1-nacelle-interior-fire-seal/history","analysis":"/api/acts/ad-beech-65-39-amdt-1-nacelle-interior-fire-seal/analysis","conflicts":"/api/acts/ad-beech-65-39-amdt-1-nacelle-interior-fire-seal/conflicts","importantCases":"/api/acts/ad-beech-65-39-amdt-1-nacelle-interior-fire-seal/important-cases","documents":"/api/acts/ad-beech-65-39-amdt-1-nacelle-interior-fire-seal/documents"}}