{"id":"F2006L02217","name":"AD/HS 125/180 - DA-A Panel Bus Bars","slug":"ad-hs-125-180-da-a-panel-bus-bars","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":117545,"registerId":"commonwealth-F2006L02217-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"British Aerospace BAe 125 Series Aeropla","sectionType":"division","heading":"British Aerospace BAe 125 Series Aeroplanes","content":"### British Aerospace BAe 125 Series Aeroplanes\n\n| AD/HS 125/180 | DA-A Panel Bus Bars | 8/2006 |\n| ------------- | ------------------- | ------ |\n\n| Applicability: | Raytheon Model Hawker 800XP aeroplanes, serial numbers 258541, 258556, 258567 through 258609 inclusive, 258611 through 258628 inclusive, 258630 through 258684 inclusive, and 258686 through 258728 inclusive.                                                                                                                                                                                                                                   |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | 1. Perform a detailed inspection of the four bus bars in the DA-A panel to ensure that the bus bars match the panel configuration and clearance is adequate between the bus bars and adjacent components, in accordance with the Accomplishment Instructions of Raytheon Service Bulletin SB 24-3745, Revision 1, dated September 2005.                                                                                                          |\n|                | 2. Carry out any applicable corrective actions of any discrepancies found during the Requirement 1 inspection in accordance with SB 24-3745 Revision 1.                                                                                                                                                                                                                                                                                          |\n|                | Note 1: For the purposes of this AD, a detailed inspection is: \"An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.'' |\n|                | Inspections accomplished before the effective date of this Directive in accordance with Raytheon SB 24-3745, dated September 2005, are considered acceptable for compliance with the inspections specified in Requirement 1.                                                                                                                                                                                                                     |\n|                | Later revisions of the SB 24-3745, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2006-11-07, are considered acceptable for compliance with the equivalent Requirements of this Directive.                                                                                                                                                                            |\n|                | Note 2: FAA AD 2006-11-07 Amdt 39-14611 refers.                                                                                                                                                                                                                                                                                                                                                                                                  |\n| Compliance:    | For Requirement 1 - Within 30 days after the effective date of this Directive.                                                                                                                                                                                                                                                                                                                                                                   |\n|                | For Requirement 2 - Before further flight after the Requirement 1 inspection.                                                                                                                                                                                                                                                                                                                                                                    |\n|                | This Airworthiness Directive becomes effective on 3 August 2006.                                                                                                                                                                                                                                                                                                                                                                                 |\n\n| Background: | The FAA has received two reports of inadequate clearance between the bus bars in the DA-A panel. This Directive is issued to prevent insufficient electrical isolation for the electrical bus configuration and inability of the flight crew to isolate the bus bars in an emergency situation involving a dual generator failure, which could result in extra loads on the main ship batteries and consequent loss of power to the main essential bus. |\n| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n22 June 2006","sortOrder":0},{"sectionNumber":"AD/HS 125/180","sectionType":"part","heading":"AD/HS 125/180","content":"## AD/HS 125/180","sortOrder":1},{"sectionNumber":"DA-A Panel Bus Bars","sectionType":"part","heading":"DA-A Panel Bus Bars","content":"## DA-A Panel Bus Bars","sortOrder":2},{"sectionNumber":"8/2006","sectionType":"part","heading":"8/2006","content":"## 8/2006","sortOrder":3}],"analysis":{"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains focused on inspection and correction of DA‑A panel bus bars for the listed Hawker 800XP serial numbers, using Raytheon SB 24‑3745 Rev 1; it explicitly accepts prior inspections under the September 2005 SB and FAA‑approved later revisions as compliant."},"complexity_factors":["Narrow applicability limited to specific Raytheon Hawker 800XP serial numbers (detailed list)","Mandates a technical, ‘detailed inspection’ with defined lighting/inspection-aid standards","Relies on an external document (Raytheon SB 24-3745 Rev 1) for inspection and corrective-action procedures","Short compliance window (inspection within 30 days) and repairs required before further flight","Cross-reference to FAA AD and acceptance of earlier inspections and FAA‑approved later SB revisions as Alternate Methods of Compliance (AMOC)","Operator responsibility for performing and funding inspections and corrective actions"],"plain_english_summary":"This directive requires owners/operators of listed Raytheon Hawker 800XP serial numbers to carry out a detailed inspection of the four DA‑A panel bus bars and to correct any discrepancies in accordance with Raytheon Service Bulletin SB 24‑3745 Rev 1. Inspections are due within 30 days and repairs must be completed before further flight.\n\nThe FAA reported two instances of inadequate clearance that could impair electrical isolation and risk loss of power. Owners/operators pay compliance costs; CASA accepts earlier inspections under the September 2005 SB and FAA‑approved later revisions as alternate compliance."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, targeted airworthiness directive addressing a specific safety defect in a defined aircraft population. The scope remains precisely limited to the electrical bus bar clearance issue identified in the FAA reports."},"complexity_factors":["Short, single-purpose directive with only 2 requirements","Clear, specific applicability limited to enumerated serial numbers","Single cross-reference to FAA AD 2006-11-07 and Raytheon Service Bulletin SB 24-3745","One defined term ('detailed inspection') with explicit definition provided","Simple compliance timeline (30 days + before further flight)","No nested exceptions or conditional logic — straightforward if-then structure"],"plain_english_summary":"This AD requires owners/operators of specified Raytheon Hawker 800XP aircraft to inspect the DA‑A panel bus bars within 30 days to ensure correct configuration and adequate clearance, and to repair any defects before further flight. It targets listed serial-numbered jets and aims to prevent loss of essential electrical power if both generators fail and the crew cannot isolate the buses."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-180-da-a-panel-bus-bars","history":"/api/acts/ad-hs-125-180-da-a-panel-bus-bars/history","analysis":"/api/acts/ad-hs-125-180-da-a-panel-bus-bars/analysis","conflicts":"/api/acts/ad-hs-125-180-da-a-panel-bus-bars/conflicts","importantCases":"/api/acts/ad-hs-125-180-da-a-panel-bus-bars/important-cases","documents":"/api/acts/ad-hs-125-180-da-a-panel-bus-bars/documents"}}