{"id":"F2005L00920","name":"AD/IAI-W/28 - Overhead Circuit Breaker Panel Electrical Wire Bundles","slug":"ad-iai-w-28-overhead-circuit-breaker-panel-electrical-wire-bundles","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":34362,"registerId":"commonwealth-F2005L00920-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Israel Aircraft Industries 1123 and 1124","sectionType":"division","heading":"Israel Aircraft Industries 1123 and 1124 (Westwind) Series Aeroplanes","content":"### Israel Aircraft Industries 1123 and 1124 (Westwind) Series Aeroplanes\n\n| AD/IAI-W/28 | Overhead Circuit Breaker PanelElectrical Wire Bundles | 6/2005 DM |\n| ----------- | ----------------------------------------------------- | --------- |\n\n| Applicability: | Model 1124 and 1124A Westwind aeroplanes.                                                                                                                                                                                                                                                             |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Unless previously accomplished, carry out the following actions as detailed in IAI Westwind Alert Service Bulletin 1124-24A-154 dated 22 March 2004:                                                                                                                                                  |\n|                | a. Inspect the electrical wire bundles in the overhead circuit breaker panel for chafing,b. If necessary, repair and rework the bundles,c. Add anti-chafing means, andd. Check for adequate clearance.                                                                                                |\n|                | Note: Israel CAA AD 24-05-02-32 refers.                                                                                                                                                                                                                                                               |\n| Compliance:    | Within 50 hours time in service after the effective date of this Directive.                                                                                                                                                                                                                           |\n|                | This Airworthiness Directive becomes effective on 20 April 2005.                                                                                                                                                                                                                                      |\n| Background:    | This Directive requires a one time inspection of the wiring harnesses together with the installation of protection and, if necessary, repairs or rework of the harnesses. The Israel CAA has received a report of one in-flight fire caused by electrical shorts in the wire bundles due to chaffing. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n13 April 2005","sortOrder":0},{"sectionNumber":"AD/IAI-W/28","sectionType":"part","heading":"AD/IAI-W/28","content":"## AD/IAI-W/28","sortOrder":1},{"sectionNumber":"Overhead Circuit Breaker PanelElectrical","sectionType":"part","heading":"Overhead Circuit Breaker PanelElectrical Wire Bundles","content":"## Overhead Circuit Breaker Panel  \nElectrical Wire Bundles","sortOrder":2},{"sectionNumber":"6/2005 DM","sectionType":"part","heading":"6/2005 DM","content":"## 6/2005 DM","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The Directive stays within the original safety-focused purpose: remedy chafing of overhead circuit breaker panel wiring after a reported in-flight fire. It mandates a one-time inspection and corrective work consistent with that purpose and does not expand into unrelated maintenance, operational restrictions, or recurring obligations."},"complexity_factors":["Short, single-purpose directive (one-time inspection/modification)","Applies to a narrow fleet (IAI Model 1124 and 1124A only)","Lists four discrete actions (inspect; repair/rework; add anti-chafing; check clearance)","Single fixed compliance deadline (within 50 hours time-in-service)","Cross-reference to one external technical document (IAI Alert Service Bulletin 1124-24A-154)","No nested exceptions, no recurring inspection intervals, no penalty/exemption schemes"],"plain_english_summary":"This directive mandates a one-time inspection and, if necessary, repair/modification of the overhead circuit-breaker-panel wire bundles on IAI Model 1124/1124A Westwind aeroplanes, to be done per IAI Alert Service Bulletin 1124‑24A‑154 and completed within 50 flight hours of the effective date.\n\nIt affects owners/operators (who pay and must record compliance), licensed maintenance organisations and regulators. The goal is to remove chafing, add protection and ensure clearance to reduce the risk of electrical shorts and in-flight fire."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific wiring defect on specific aircraft models. It has not expanded beyond its original purpose of preventing electrical fires in Westwind aircraft."},"complexity_factors":["Very short document (under 300 words)","Only 4 specific required actions (inspect, repair/rework, add protection, check clearance)","Single defined term: 'time in service' (standard aviation term for flight hours)","No cross-references to other legislation — only references a manufacturer's service bulletin and a foreign aviation directive for background","Simple conditional logic: 'unless previously accomplished' is the only exception","Clear, single deadline (50 hours after effective date)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's aviation regulator (CASA) requiring specific repairs or inspections on aircraft.\n\n**What it does:**\nOrders owners and operators of **Israel Aircraft Industries 1124 and 1124A Westwind aeroplanes** to inspect and fix electrical wiring in the overhead circuit breaker panel. Specifically, they must:\n- **Inspect** wire bundles for wear and tear (chafing)\n- **Repair** any damaged wiring if found\n- **Add protective padding** (anti-chafing means) to prevent future damage\n- **Check** there's enough clearance around the wires\n\n**Who it affects:**\nAnyone who owns, operates, or maintains Model 1124 and 1124A Westwind aircraft — these are business jets originally made in Israel.\n\n**Why it matters:**\nAn in-flight fire had already occurred on one of these aircraft because wires rubbed against metal parts (chafing), causing electrical shorts. This directive prevents potentially catastrophic fires by forcing a one-time safety fix. The work must be done within **50 flight hours** after 20 April 2005.\n\n**Key point:** This isn't optional — \"Airworthiness Directive\" means compliance is legally mandatory to keep the aircraft certified to fly."}},"importantCases":[],"_links":{"self":"/api/acts/ad-iai-w-28-overhead-circuit-breaker-panel-electrical-wire-bundles","history":"/api/acts/ad-iai-w-28-overhead-circuit-breaker-panel-electrical-wire-bundles/history","analysis":"/api/acts/ad-iai-w-28-overhead-circuit-breaker-panel-electrical-wire-bundles/analysis","conflicts":"/api/acts/ad-iai-w-28-overhead-circuit-breaker-panel-electrical-wire-bundles/conflicts","importantCases":"/api/acts/ad-iai-w-28-overhead-circuit-breaker-panel-electrical-wire-bundles/important-cases","documents":"/api/acts/ad-iai-w-28-overhead-circuit-breaker-panel-electrical-wire-bundles/documents"}}