{"id":"F2006B03844","name":"AD/BEECH 35/48 - Beryl Aviation Filtrator Assembly","slug":"ad-beech-35-48-beryl-aviation-filtrator-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43453,"registerId":"commonwealth-F2006B03844-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 35/48 - Beryl Aviation Filtrator Assembly","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBeechcraft 35 (Bonanza) Series Aeroplanes\n\nAD/BEECH 35/48 Beryl Aviation Filtrator Assembly 8/75\n\nApplicability: Models 35, A35, B35, C35, D35, E35, F35,35R, H35, J35, K35, M35, N35 and P35\n\nwhich have been modified in accordance with FAA Supplemental Type Certificate No. SA 2219 WE (Installation of engine crankcase breather and vacuum pump air-oil separator).\n\nRequirement: 1. For Beech Models 35, A35, B35, C35, D35, E35, F35 and 35R, remove the Beryl Aviation filtrator assembly P/N 1000-1 and install P/N B-1119-M, P/N\n\nB-1119-RM, or P/N 1000-1-RM.\n\n2. For Beech Models H35, J35, K35, M35, N35 and P35, remove the Beryl Aviation filtrator assembly P/N 1000-1 and install P/N B-1114-M, P/N B-1114-RM or P/N 1000-1-RM.\n\nCompliance: Within 100 hours time in service after 30 September 1975.","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 mechanical defect in a defined aircraft population. It has not expanded beyond its original purpose of mandating a parts replacement for safety reasons."},"complexity_factors":["Very short document (approximately 150 words)","Only 3 defined terms implicitly referenced (Applicability, Requirement, Compliance)","Simple conditional structure: two distinct model groups with different part requirements","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Single compliance deadline with straightforward calculation method (100 hours time in service after fixed date)","No nested exceptions or subordinate clauses"],"plain_english_summary":"This is an **Airworthiness Directive** — 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:**\nOrders owners and operators of certain Beechcraft Bonanza aeroplanes (Models 35 through P35) to replace a faulty engine part called the \"Beryl Aviation filtrator assembly.\" The original part (P/N 1000-1) must be swapped out for an improved version.\n\n**Who it affects:**\n- Owners and operators of specific Beechcraft 35 series aircraft\n- Only applies to planes that have a particular engine modification (FAA Supplemental Type Certificate SA 2219 WE) — this is an official approval for altering the engine's crankcase breather and vacuum pump system\n\n**The specific fix:**\n- **Earlier models** (35, A35, B35, C35, D35, E35, F35, 35R): Replace with part numbers B-1119-M, B-1119-RM, or 1000-1-RM\n- **Later models** (H35, J35, K35, M35, N35, P35): Replace with part numbers B-1114-M, B-1114-RM, or 1000-1-RM\n\n**Deadline:**\nMust be completed within 100 hours of flight time after 30 September 1975.\n\n**Why it matters:**\nAirworthiness directives are legally binding safety requirements. Flying without complying can ground an aircraft and expose operators to penalties. This directive addresses a specific mechanical defect in the engine's air-oil separation system that could affect flight safety."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive targets aircraft already modified under FAA STC No. SA 2219 WE and prescribes replacement of a specific component with enumerated part numbers within a fixed compliance period. It does not expand or narrow applicability beyond the stated set of modified Beech 35-series models; it imposes a direct component-replacement obligation rather than altering other operational or regulatory duties. (See \"Applicability\", \"Requirement\", \"Compliance\".)"},"complexity_factors":["Multiple aircraft model groups listed under a single applicability clause (adds selection complexity). (Applicability)","Different permitted replacement part numbers depending on model group (Requirement paras 1 and 2).","Requirement is contingent on a prior modification under a specific FAA STC, narrowing the pool of affected aircraft but requiring verification. (Applicability)","A single, short compliance window tied to a fixed calendar reference and aircraft hours (Compliance).","No alternative compliance paths, waivers, or procedural detail in the text (simplicity of instruction but increases practical implementation questions). (Requirement/Compliance)"],"plain_english_summary":"This AD requires owners/operators of certain Beechcraft Model 35‑series aeroplanes modified under FAA STC SA 2219 WE to remove Beryl Aviation filtrator P/N 1000‑1 and install one of the listed replacement P/Ns within 100 hours time‑in‑service after 30 September 1975. It matters because it creates a mandatory parts-replacement obligation that carries parts, labour and downtime costs for affected operators."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-35-48-beryl-aviation-filtrator-assembly","history":"/api/acts/ad-beech-35-48-beryl-aviation-filtrator-assembly/history","analysis":"/api/acts/ad-beech-35-48-beryl-aviation-filtrator-assembly/analysis","conflicts":"/api/acts/ad-beech-35-48-beryl-aviation-filtrator-assembly/conflicts","importantCases":"/api/acts/ad-beech-35-48-beryl-aviation-filtrator-assembly/important-cases","documents":"/api/acts/ad-beech-35-48-beryl-aviation-filtrator-assembly/documents"}}