{"id":"F2006B05534","name":"AD/PA-24/35 - Beryl Aviation Filtrator Assembly - Replacement","slug":"ad-pa-24-35-beryl-aviation-filtrator-assembly-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46441,"registerId":"commonwealth-F2006B05534-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-24/35 - Beryl Aviation Filtrator Assembly - Replacement","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)  Piper PA-24 (Comanche) Series Aeroplanes\n\n \n\nAD/PA-24/35 Beryl Aviation Filtrator Assembly - Replacement 4/75\n\nApplicability: Models PA24, PA24-250, PA24-260 series which have been modified in accordance with FAA Supplemental Type Certificate No. SA2653WE (installation of engine crankcase breather and vacuum pump air-oil separator).\n\n \n\nRequirement: 1. Remove the Beryl Aviation filtrator assembly P/N B-1113-1 and install either P/N B-1113-M or P/N B-1113-RM; or\n\n \n\n2. FAA AD No. 75-05-02.\n\n \n\nCompliance: Within 100 hours time in service after 30 April 1975.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive from 1975 addressing a specific defective part. It has not expanded beyond its original narrow technical scope."},"complexity_factors":["Single, specific technical requirement with two alternative compliance paths","Limited applicability — only three specific aircraft models with one specific modification","No defined terms section or interpretation provisions","No cross-references to other legislation beyond a single FAA AD reference","Straightforward compliance deadline (100 hours time in service)","Total length is approximately 150 words"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It applies to specific Piper PA-24 Comanche aircraft that have been modified with a particular engine part (an air-oil separator made by Beryl Aviation).\n\n**What it requires:**\n- Owners or operators must **replace a faulty filtrator assembly** (part number B-1113-1) with an improved version (either B-1113-M or B-1113-RM).\n- Alternatively, they can comply with an equivalent American safety order (FAA AD 75-05-02).\n\n**Who it affects:**\n- Owners and operators of Piper PA-24, PA-24-250, and PA-24-260 aircraft that have a specific FAA-approved modification (Supplemental Type Certificate SA2653WE) installed.\n\n**Why it matters:**\n- Airworthiness Directives are **legally binding safety instructions**. Non-compliance means the aircraft cannot legally fly. This particular AD addresses a defect in the Beryl Aviation filtrator assembly that could affect engine performance or safety.\n\n**Deadline:**\n- The replacement had to be done within **100 hours of flight time** after 30 April 1975 (note: this is a historical directive from 1975)."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The provided text sets a targeted scope: it applies to specified PA-24 models that have a particular STC modification, and it requires a specific part replacement (or compliance with FAA AD No. 75-05-02) within a defined time limit. The instrument does not indicate any expansion or narrowing of that scope from an earlier or different intent within the supplied text."},"complexity_factors":["Narrow technical scope: applies only to PA-24 models modified under FAA STC SA2653WE (Applicability).","Single, specific mandated action: replace one part number with one of two specified part numbers or follow an FAA AD (Requirement).","Fixed, short compliance window tied to flight hours and calendar reference (100 hours after 30 April 1975) (Compliance).","References to external documents (FAA STC SA2653WE and FAA AD No. 75-05-02) require operators to check records and possibly interpret equivalence (Applicability; Requirement).","Operational dependencies (parts availability, maintenance resource scheduling, qualification of maintenance personnel) increase practical complexity though not legal complexity (Requirement)."],"plain_english_summary":"This AD requires owners/operators of Piper PA-24, PA24-250 and PA24-260 aeroplanes modified under FAA STC SA2653WE to remove Beryl Aviation filtrator P/N B-1113-1 and install P/N B-1113-M or B-1113-RM (or comply with FAA AD 75-05-02) within 100 hours TIS after 30 April 1975. Owners/operators pay for and arrange the parts and licensed maintenance; it creates short-term aircraft downtime and procurement/qualification considerations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-24-35-beryl-aviation-filtrator-assembly-replacement","history":"/api/acts/ad-pa-24-35-beryl-aviation-filtrator-assembly-replacement/history","analysis":"/api/acts/ad-pa-24-35-beryl-aviation-filtrator-assembly-replacement/analysis","conflicts":"/api/acts/ad-pa-24-35-beryl-aviation-filtrator-assembly-replacement/conflicts","importantCases":"/api/acts/ad-pa-24-35-beryl-aviation-filtrator-assembly-replacement/important-cases","documents":"/api/acts/ad-pa-24-35-beryl-aviation-filtrator-assembly-replacement/documents"}}