{"id":"F2006B02917","name":"AD/B737/220 - Video Distribution Unit Connectors","slug":"ad-b737-220-video-distribution-unit-connectors","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42259,"registerId":"commonwealth-F2006B02917-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\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 CASR 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.\n\n![](image.001.png)  \n\nBoeing 737 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B737/220 Video Distribution Unit Conn","sectionType":"part","heading":"AD/B737/220 Video Distribution Unit Connectors 3/2004","content":"# AD/B737/220 Video Distribution Unit Connectors 3/2004\n\nApplicability: Model 737-600, \\-700, and \\-800 series aeroplanes listed in Boeing Service Bulletin (SB) 737-23A1169, Revision 2, dated 21 June 2001.\n\nRequirement: 1. Replace existing video distribution unit (VDU) electrical connectors with new, improved connectors and install a drip loop in the wiring at the new VDU connectors, in accordance with Part 2 of the Accomplishment Instructions of SB 737-23A1169, Revision 2, including Appendices A and B.\n\n2. VDU connector, part number CAMA11W1P, may not be installed as a replacement part on any aeroplane.\n\nNote: FAA AD 2003-26-12 Amdt 39-13411 refers.\n\nCompliance: For Requirement 1 \\- Within 18 months after the effective date of this Directive.\n\nFor Requirement 2 \\- As of the effective date of this Directive.\n\nThis Airworthiness Directive becomes effective on 18 March 2004.\n\nBackground: This Directive requires the replacement of existing VDU connectors with new connectors to prevent a possible electrical short circuit in the connector. The short circuit could cause arcing and/or damage to wiring within the connector, which could result in damage to adjacent systems or structure and possible smoke or fire in the aeroplane cabin.\n\n![Signature of James Coyne, Delegate of the Civil Aviation Safety Authority.](image.002.png)  \n\nJames Coyne\n\nDelegate of the Civil Aviation Safety Authority 4 February 2004\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 25 February 2004.","sortOrder":1}],"analysis":{"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument implements a focused corrective action for specified 737 models listed in Boeing SB 737-23A1169 Rev 2 by mandating connector replacement and banning a specific replacement part (Requirement 1; Requirement 2; Applicability). The text contains no indication that the AD expands or narrows scope beyond that corrective objective or the FAA-referenced action (Note; Background)."},"complexity_factors":["Targeted applicability limited to models and serials listed in Boeing Service Bulletin 737-23A1169, Revision 2 (Applicability).","Technical work must follow Boeing SB Part 2 and Appendices A and B (Requirement 1), creating reliance on manufacturer instructions.","Immediate prohibition on installing part number CAMA11W1P imposes an absolute parts-management constraint (Requirement 2).","Fixed compliance window: one mandatory task within 18 months after effective date (Compliance).","Safety justification based on risk of short circuit, arcing and possible smoke/fire (Background).","Cross-reference to FAA AD 2003-26-12 introduces inter-jurisdictional reference (Note).","Costs and execution fall to aircraft operators; the AD delegates technical method to the Boeing SB (Requirement 1; Compliance)."],"plain_english_summary":"This AD requires operators of Boeing 737-600, -700 and -800 aeroplanes listed in Boeing Service Bulletin 737-23A1169 Rev 2 to replace video distribution unit (VDU) electrical connectors with improved connectors and fit a drip loop to the wiring to prevent connector short circuits that could cause arcing, wiring damage or cabin smoke/fire. Operators must complete the replacement within 18 months (Requirement 1; Compliance) and must not install connector part number CAMA11W1P from the effective date (Requirement 2)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope: addressing a specific unsafe condition in VDU connectors on specific Boeing 737 models. There is no evidence of scope creep; it remains a targeted safety intervention for a defined technical problem."},"complexity_factors":["Single, specific technical requirement with clear mechanical action (replace connectors, install drip loop)","Only 2 substantive requirements with straightforward compliance dates","Minimal defined terms (relies on external Boeing Service Bulletin for technical specifications)","No nested exceptions or conditional logic — applicability is a simple aircraft model list","Short document (approximately 300 words) with clear structure (Applicability, Requirement, Compliance, Background)","Single cross-reference to FAA AD for administrative tracking only"],"plain_english_summary":"This safety order requires owners/operators of Boeing 737-600/700/800 aircraft listed in the referenced Boeing service bulletin to replace faulty Video Distribution Unit connectors, add a wiring “drip loop,” and prohibits use of replacement part CAMA11W1P. It targets in‑flight entertainment wiring that can short, arc, and cause smoke or fire in the cabin.\n\nThe ban on the part was effective 18 March 2004 and operators were given 18 months to complete the connector replacements."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-220-video-distribution-unit-connectors","history":"/api/acts/ad-b737-220-video-distribution-unit-connectors/history","analysis":"/api/acts/ad-b737-220-video-distribution-unit-connectors/analysis","conflicts":"/api/acts/ad-b737-220-video-distribution-unit-connectors/conflicts","importantCases":"/api/acts/ad-b737-220-video-distribution-unit-connectors/important-cases","documents":"/api/acts/ad-b737-220-video-distribution-unit-connectors/documents"}}