{"id":"F2006B03328","name":"AD/B767/152 - In-Flight Entertainment System FAA STC SA4998NM","slug":"ad-b767-152-in-flight-entertainment-system-faa-stc-sa4998nm","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42765,"registerId":"commonwealth-F2006B03328-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/152 - In-Flight Entertainment System FAA STC SA4998NM","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  \n\n\n# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  For 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.\n\n \n\nBoeing 767 Series Aeroplanes\n\n \n\n# AD/B767/152 In-Flight Entertainment System FAA STC SA4998NM\n\n\n10/2001\n\n \n\n \n\nApplicability: Model 767-200 series aeroplanes modified by United States Federal Aviation Administration (FAA) Supplemental Type Certificate (STC) SA4998NM.\n\n \n\nRequirement: 1. Modify the in-flight entertainment (IFE) system in accordance with Flight Structures Service Bulletin (SB) 89FS134-23-01, Revision 2, dated 21 September 2000 to change the source of electrical power for the IFE system from the main electrical bus to a utility electrical bus.\n\n \n\n2. IFE may not be installed on any aeroplane in accordance with STC SA4998NM unless it is modified in accordance with Flight Structures SB 89FS134-23-01, Revision 2.\n\n \n\nNote: FAA AD 2001-16-21 Amdt 39-12390 refers.\n\n \n\nCompliance: For Requirement 1 - Within 18 months after the effective date of this Directive.\n\n \n\nFor Requirement 2 - As of the effective date of this Directive.\n\n \n\nThis Airworthiness Directive becomes effective on 4 October 2001.\n\n \n\nBackground: This Directive requires modification of the electrical circuits that supply power to IFE systems installed by STC SA4998NM. This action is required to ensure that, when necessary, the flight crew is able to remove power from the IFE system. Inability to remove power from the IFE system during a non-normal or emergency situation could result in inability to control smoke or fumes in the airplane flight deck or cabin.\n\n![Signature of Eugene Paul Holzapfel, Delegate of the Civil Aviation Safety Authority.](image.002.png)  \n\n\n \n\n \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 23 August 2001\n\n \n\n![](image.001.png)  \n\n\nThe above AD is notified in the Commonwealth of Australia Gazette on 12 September 2001.\n\n \n\n \n\n\nPage 1 of 1\n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive targets a specific unsafe condition for Boeing 767-200 aeroplanes modified by FAA STC SA4998NM and requires a narrowly defined circuit modification and an installation prohibition. It does not broaden applicability beyond aircraft carrying that STC; it adds an operational constraint (no installations unless modified) but does not change the original technical focus of correcting the IFE power source to allow crew-controlled disconnection."},"complexity_factors":["Technical electrical work: requires modification of aircraft electrical circuits (rewiring power source from main bus to utility bus) per a specific service bulletin (SB 89FS134-23-01 Rev 2).","Limited applicability: only affects Model 767-200 aeroplanes modified by FAA STC SA4998NM, narrowing regulatory reach but concentrating impact on affected operators.","Compliance timing: a single compliance window (within 18 months) creates scheduling and maintenance-planning demands for operators and maintainers.","Installation prohibition: immediate ban (as of effective date) on installing IFE under the STC unless modified, affecting procurement and retrofit decisions.","Operator cost and labour: owners/operators bear costs, need certified maintenance resources and possible aircraft downtime to complete the SB work.","Regulatory linkage: references FAA AD 2001-16-21, requiring coordination of international airworthiness authorities and potential records/update actions.","Safety rationale constrained to one failure mode: focuses on crew ability to remove IFE power to control smoke/fumes; does not mandate broader IFE changes.","Enforcement and certification: CASA delegate issued the AD under CAR subregulation 39.1(1), creating a mandatory regulatory obligation for affected aircraft."],"plain_english_summary":"This Airworthiness Directive requires Boeing 767‑200 aeroplanes modified by FAA STC SA4998NM to rewire their in‑flight entertainment (IFE) systems so the IFE draws power from the utility electrical bus instead of the main bus, per Flight Structures SB 89FS134‑23‑01 Rev 2. Operators must complete the modification within 18 months and may not install IFE under that STC unless the modification is made. CASA says the change ensures crew can remove IFE power in non‑normal or emergency situations to help control smoke or fumes."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope. It addresses a specific unsafe electrical configuration on a specific aircraft model (Boeing 767-200) modified under a specific certification (STC SA4998NM). The directive has not expanded beyond its original purpose of ensuring flight crews can isolate power to in-flight entertainment systems."},"complexity_factors":["Single-page document with only 2 substantive requirements","Only 3 defined concepts (STC, IFE, SB) that are standard aviation terms","No nested conditional logic or cross-references to other legislation beyond a single note referencing the corresponding FAA directive","Clear, linear structure: Applicability → Requirement → Compliance → Background","Specific, measurable deadlines (18 months, 'as of effective date')","No exceptions, exemptions, or alternative compliance methods specified"],"plain_english_summary":"This CASA safety order requires Boeing 767-200 aircraft modified under FAA STC SA4998NM to rewire in-flight entertainment systems so they draw from a utility electrical bus instead of the main bus. It affects operators of those modified planes and lets pilots isolate IFE power quickly during smoke/fire emergencies. Existing installations must be rewired within 18 months (from 4 Oct 2001), and no new STC installations are permitted unless wired this way."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-152-in-flight-entertainment-system-faa-stc-sa4998nm","history":"/api/acts/ad-b767-152-in-flight-entertainment-system-faa-stc-sa4998nm/history","analysis":"/api/acts/ad-b767-152-in-flight-entertainment-system-faa-stc-sa4998nm/analysis","conflicts":"/api/acts/ad-b767-152-in-flight-entertainment-system-faa-stc-sa4998nm/conflicts","importantCases":"/api/acts/ad-b767-152-in-flight-entertainment-system-faa-stc-sa4998nm/important-cases","documents":"/api/acts/ad-b767-152-in-flight-entertainment-system-faa-stc-sa4998nm/documents"}}