{"id":"F2006B03953","name":"AD/BEECH 50/29 - Powerplant Fire Detection and Extinguishing Systems","slug":"ad-beech-50-29-powerplant-fire-detection-and-extinguishing-systems","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43562,"registerId":"commonwealth-F2006B03953-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 50/29 - Powerplant Fire Detection and Extinguishing Systems","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 50 (Twin Bonanza) Series Aeroplanes\n\n \n\nAD/BEECH 50/29 Powerplant Fire Detection and\n\nExtinguishing Systems\n\n\n8/79\n\n \n\nApplicability: All models.\n\n \n\nRequirement: Install powerplant fire detection and fire extinguishing systems in accordance with ANO Part 101.4, para. 6.14.\n\n \n\nCompliance: Before 1 January 1980.\n\n \n\nBackground:  Complementary to the recent installation of stainless steel fuel lines in wheel wells, it is now required that fire detection and fire protection systems be incorporated. It should be noted that aircraft modified to the minimum standard required by this order do not comply with the fire detection requirements for USA registered aircraft as detailed in FAA AD 78-11-01 amendment 39-3220, as amended by 39-3277.\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":3,"scope_assessment":{"changed":false,"description":"The directive’s scope is to require installation of powerplant fire detection and extinguishing systems on all Beechcraft 50 series aircraft and to set a compliance deadline (Applicability; Requirement; Compliance). The background explains this is complementary to earlier fuel-line modifications and notes a remaining difference with FAA requirements (Background). There is no indication in the text that the scope of affected aircraft or the core requirement was altered from the instrument’s stated intent."},"complexity_factors":["Narrow technical scope (single equipment type: fire detection and extinguishing systems) limited to one aircraft series (Applicability).","Cross-reference to an external technical standard (ANO Part 101.4, para. 6.14) that specifies installation details (Requirement).","Fixed compliance deadline requiring scheduling and resourcing (Compliance).","Regulatory divergence note: compliance with this AD does not satisfy a related FAA AD, creating potential additional work for some operators (Background).","Placement within the airworthiness directive framework (Part 39 header) — mandatory regulatory effect rather than voluntary guidance."],"plain_english_summary":"This directive requires all Beechcraft 50 (Twin Bonanza) aeroplanes to be retrofitted with powerplant fire‑detection and extinguishing systems to the ANO Part 101.4(6.14) standard by 1 January 1980. Owners/operators must arrange and pay for the installations. Compliance improves onboard fire protection but may still fall short of FAA AD 78‑11‑01, so additional work could be needed for US registration."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive from 1979 with a single, specific purpose. There is no evidence of scope creep; it addresses exactly what it says on the tin — fire detection and extinguishing systems for one aircraft series."},"complexity_factors":["Extremely short document (under 200 words)","Only 4 operative sections: Applicability, Requirement, Compliance, and Background","Single, unambiguous requirement with clear deadline","No defined terms section","No cross-references to other legislation (only references external technical standard ANO Part 101.4 and FAA AD for comparison)","No conditional logic or exceptions"],"plain_english_summary":"**What this is:** 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:** It requires owners and operators of **Beechcraft 50 (Twin Bonanza) series aeroplanes** to install **fire detection and fire extinguishing systems** in the engine compartments (powerplants) before 1 January 1980.\n\n**Who it affects:** Anyone who owns, operates, or maintains a Beechcraft 50 series aircraft in Australia.\n\n**Why it matters:** This is a critical safety measure. Engine fires in flight are extremely dangerous. The directive was triggered by a related safety upgrade — the recent installation of stainless-steel fuel lines in wheel wells — which apparently raised concerns about fire risks that needed active detection and suppression systems.\n\n**Important caveat:** The directive explicitly warns that meeting this Australian standard **does not** satisfy the stricter American requirements. If you wanted to register this aircraft in the USA, you'd need additional modifications beyond what this directive requires."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-50-29-powerplant-fire-detection-and-extinguishing-systems","history":"/api/acts/ad-beech-50-29-powerplant-fire-detection-and-extinguishing-systems/history","analysis":"/api/acts/ad-beech-50-29-powerplant-fire-detection-and-extinguishing-systems/analysis","conflicts":"/api/acts/ad-beech-50-29-powerplant-fire-detection-and-extinguishing-systems/conflicts","importantCases":"/api/acts/ad-beech-50-29-powerplant-fire-detection-and-extinguishing-systems/important-cases","documents":"/api/acts/ad-beech-50-29-powerplant-fire-detection-and-extinguishing-systems/documents"}}