{"id":"F2006B10421","name":"AD/HS 125/140 - Galley Electrical Feeder Cables","slug":"ad-hs-125-140-galley-electrical-feeder-cables","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116105,"registerId":"commonwealth-F2006B10421-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/140 - Galley Electrical Feeder Cables","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)  \nBritish Aerospace BAe 125 Series Aeroplanes\n\nAD/HS 125/140 Galley Electrical Feeder Cables 5/94\n\nApplicability: BAe 125 Series 1000 aircraft, furnished with a \\`Traditional Galley’ at Chester and identified in Hawker Raytheon Corporate Jets Service Bulletin SB.25-75-25A699A dated 10 February 1994.\n\nRequirement: Incorporate Modification Number 25A699A in accordance with the Accomplishment Instructions of Hawker Raytheon Corporate Jets Service Bulletin SB.25-75-25A699A dated 10 February 1994.\n\nNote: This Service Bulletin has been classified as Mandatory by the CAA(UK).\n\nCompliance: Prior to 30 June 1994.\n\nBackground: Galley electrical feeder cables and fuse ratings are not compatible. An electrical fault in the galley could result in the cables overheating, together with possible smoke generation. This Directive requires an increase in the gauge of the galley electrical feeder cables and the addition of a fuse in the galley.\n\nThe CAA(UK) compliance time is extended by two months.","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 wiring defect in a specific aircraft configuration. It has not expanded beyond its original technical safety purpose."},"complexity_factors":["Single, specific aircraft type and configuration (BAe 125 Series 1000 with Traditional Galley at Chester)","Single mandatory action (install one specific modification)","Clear cross-reference to one external technical document (Service Bulletin SB.25-75-25A699A)","No defined terms section, no conditional logic, no nested exceptions","Short document (approximately 150 words of substantive content)","Simple compliance deadline structure"],"plain_english_summary":"**What this is:** An Airworthiness Directive (AD) — essentially a mandatory safety order for aircraft.\n\n**What it does:** Requires owners/operators of specific British Aerospace BAe 125 Series 1000 business jets to upgrade the electrical wiring in the aircraft's kitchen (\"galley\"). Specifically, they must install thicker electrical cables and add a fuse to prevent overheating and potential fire hazards.\n\n**Who it affects:** Operators of BAe 125 Series 1000 aircraft that have a specific \"Traditional Galley\" configuration installed at Chester (UK), as identified in a 1994 service bulletin.\n\n**Why it matters:** The original wiring was too thin for the electrical load and fuse ratings. This mismatch meant that if a fault occurred in the galley equipment, the cables could overheat, generate smoke, and potentially cause a fire. The directive fixes this safety defect before it causes an accident.\n\n**Key details:**\n- **Deadline:** Before 30 June 1994 (Australia extended the UK deadline by two months)\n- **Action required:** Install Modification 25A699A following specific instructions in Service Bulletin SB.25-75-25A699A\n- **Origin:** Originally issued by UK Civil Aviation Authority (CAA), adopted by Australia's CASA"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The Directive's scope is confined to the specific BAe 125-1000 fleet fitted with the identified Traditional Galley and requires a single, defined modification to correct incompatible cable/fuse ratings. The text does not expand the fleet, requirement type, or remedies beyond that original safety target."},"complexity_factors":["Narrow applicability: limited to BAe 125 Series 1000 aircraft with the identified 'Traditional Galley' configuration (source: Applicability).","Technical modification required: increasing cable gauge and fitting a fuse per the manufacturer’s Accomplishment Instructions (source: Requirement; Background).","Fixed compliance deadline creates scheduling pressure for affected operators (source: Compliance: Prior to 30 June 1994).","Dependence on an external manufacturer Service Bulletin classified mandatory by CAA(UK) — limited discretion for regulators/operators about how to comply (source: Requirement; Note).","Operators bear the direct cost and must schedule the work into maintenance programmes (implied by Requirement and Compliance).","Cross-jurisdictional administrative note: CAA(UK) extended its compliance time by two months, which may affect international operators and timing expectations (source: final sentence)."],"plain_english_summary":"This Airworthiness Directive requires operators of BAe 125 Series 1000 aircraft fitted with the “Traditional Galley” (as identified in Hawker Raytheon SB.25-75-25A699A) to install Modification 25A699A. Mechanically, the work increases the galley feeder cable gauge and adds a fuse to eliminate incompatible cable/fuse ratings that could cause overheating or smoke. Operators must carry out the modification per the manufacturer’s Accomplishment Instructions by 30 June 1994; the CAA(UK) has classified the service bulletin as mandatory and extended its compliance time by two months."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-140-galley-electrical-feeder-cables","history":"/api/acts/ad-hs-125-140-galley-electrical-feeder-cables/history","analysis":"/api/acts/ad-hs-125-140-galley-electrical-feeder-cables/analysis","conflicts":"/api/acts/ad-hs-125-140-galley-electrical-feeder-cables/conflicts","importantCases":"/api/acts/ad-hs-125-140-galley-electrical-feeder-cables/important-cases","documents":"/api/acts/ad-hs-125-140-galley-electrical-feeder-cables/documents"}}