{"id":"F2006B10782","name":"AD/IAI-A/8 - Brake System Hydraulic Fuse","slug":"ad-iai-a-8-brake-system-hydraulic-fuse","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56243,"registerId":"commonwealth-F2006B10782-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/IAI-A/8 Brake System Hydraulic Fuse 7","sectionType":"part","heading":"AD/IAI-A/8 Brake System Hydraulic Fuse 7/2001","content":"# AD/IAI-A/8 Brake System Hydraulic Fuse 7/2001\n\nApplicability: Israel Aircraft Industries Ltd. (IAI) 1125 Westwind Astra and Astra SPX series aircraft.\n\nRequirement: 1. Perform a functional test (by measuring fluid loss) for proper operation of hydraulic fuses installed in brake system and emergency hydraulic indicating system in accordance with Astra Service Bulletin (SB) 1125-32-154.\n\nIf during the inspection any discrepancy is found, replace the fuse with a new, improved fuse part number 713047 with suffix “A” after the serial number, prior to further flight.\n\n2. Do not install a hydraulic fuse having part number 713047, unless it has a suffix “A” after the serial number.\n\nNote 1: CAA Israel AD 29-97-03-10 and FAA AD 98-06-10 refer.\n\nNote 2: Replacement of fuse with part number 713047 with suffix “A” after the serial number does not constitute a terminating action for the repeat inspections.\n\nCompliance: 1. Unless previously accomplished, carry out initial inspection within 250 flight hours or 1 year after the effective date of this Airworthiness Directive, whichever occurs first. Thereafter repeat the inspection at intervals not to exceed 1000 flight hours or 3 years, whichever occurs first.\n\n2. From the effective date of this Directive.\n\nThis Airworthiness Directive becomes effective on 12 July 2001.","sortOrder":1}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive addressing a specific technical defect in a specific aircraft type. The scope remains tightly focused on brake system hydraulic fuses for the IAI Astra series, with no evidence of scope creep beyond the original safety purpose."},"complexity_factors":["Single, specific aircraft type applicability (IAI 1125 Westwind Astra series only)","Only 2 substantive requirements with clear conditional logic (test and replace if failed; ban on old parts)","Straightforward compliance timeline with simple 'whichever occurs first' alternatives","Minimal cross-referencing (only 2 external AD references in notes, not binding requirements)","No defined terms section or interpretation provisions","Single-page document with no nested exceptions or conditional sub-clauses"],"plain_english_summary":"This CASA safety order requires owners/operators and maintenance engineers of IAI 1125 Westwind Astra and Astra SPX jets to test hydraulic brake and emergency-system fuses, replace faulty units with the improved part (PN 713047A), and prohibits fitting the old-design fuse from the effective date. \n\nInspections start within 250 flight hours or 1 year, recur every 1,000 hours or 3 years, and continue even after fitting the improved part to prevent total brake loss from fuse failures."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains focused on IAI 1125 Westwind Astra and Astra SPX aircraft. The AD requires initial and repeat functional tests of brake-system and emergency-hydraulic fuses, replacement of discrepant fuses with PN 713047 bearing suffix 'A', and bans installation of non‑suffixed parts (Applicability; Requirement 1–2; Compliance). No expansion of applicability or additional product categories is introduced in this text."},"complexity_factors":["Technical inspection requirement: functional test measuring fluid loss for hydraulic fuses (Requirement 1).","Part-specific replacement and installation control: mandatory use of PN 713047 only with suffix 'A' (Requirement 1 and 2).","Recurring compliance schedule with both flight-hour and calendar limits (Compliance 1).","Replacement does not terminate repeat inspections (Note 2) — ongoing compliance burden.","Cross-reference to external service bulletin (Astra SB 1125-32-154) and foreign ADs (Note 1), requiring reliance on other documents for procedural details."],"plain_english_summary":"Requires operators of Israel Aircraft Industries 1125 Westwind Astra and Astra SPX aircraft to test brake-system and emergency-hydraulic fuses for fluid loss, replace any defective fuse with an improved part (PN 713047 carrying a serial-number suffix “A”) before further flight, and prohibit installation of the non‑suffixed part. It enforces recurring inspections and part-control to confirm fuse function; operators pay for inspections, replacements and scheduling of repeat checks."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-iai-a-8-brake-system-hydraulic-fuse","history":"/api/acts/ad-iai-a-8-brake-system-hydraulic-fuse/history","analysis":"/api/acts/ad-iai-a-8-brake-system-hydraulic-fuse/analysis","conflicts":"/api/acts/ad-iai-a-8-brake-system-hydraulic-fuse/conflicts","importantCases":"/api/acts/ad-iai-a-8-brake-system-hydraulic-fuse/important-cases","documents":"/api/acts/ad-iai-a-8-brake-system-hydraulic-fuse/documents"}}