{"id":"F2009L01980","name":"AD/A330/101 - Cable Loom 9R Routing","slug":"ad-a330-101-cable-loom-9r-routing","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":79189,"registerId":"commonwealth-F2009L01980-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Airbus Industrie A330 Series Aeroplanes","sectionType":"division","heading":"Airbus Industrie A330 Series Aeroplanes","content":"### Airbus Industrie A330 Series Aeroplanes\n\n| AD/A330/101 | Cable Loom 9R Routing | 6/2009 |\n| ----------- | --------------------- | ------ |\n\n| Applicability: | A330-201, A330-202, A330-203, A330-223, A330-243, A330-301, A330-302,A330-303, A330-321, A330-322, A330-323, A330-341, A330-342 and A330-343 model aeroplanes, all manufacturer serial numbers (MSN), on which both Airbus modification 40379 and either Airbus modification 49894 or 51304 or 52048 or 52712 or 53559 or 53732 or 54115 or 55632 or 55722 have been embodied during production, except those on which Airbus modification 57744 has been embodied during production.                                                                                                                                                                       |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Install a stirrup on the terminal block 5507VT between frame (FR) 53.9 and FR54 and modify wiring route 9R in accordance with Airbus Service BulletinA330-92-3080 dated 12 November 2008 or later revision approved by the European Aviation Safety Agency (EASA).                                                                                                                                                                                                                                                                                                                                                                                          |\n|                | Note: EASA AD 2009-0076 refers.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |\n| Compliance:    | Within 24 months after the effective date of this Directive.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |\n|                | This Airworthiness Directive becomes effective on 4 June 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n| Background:    | The EASA has advised that, during production, it was noticed that in the area between FR C53.9 and FR C55 RH the distance between the route 9R of the In-Flight Entertainment system and the wire harness for the Lower Deck-Mobile Crew Rest system provisions was too small.This limited distance may cause chafing between the affected electrical harness 6581VB and harness 5495VB or 6938VB.This condition, if not corrected, could lead to the short circuit of wires dedicated to oxygen, which, in case of emergency, could result in a large number of passenger oxygen masks not being supplied with oxygen, possibly causing personal injuries. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n17 April 2009","sortOrder":0},{"sectionNumber":"AD/A330/101","sectionType":"part","heading":"AD/A330/101","content":"## AD/A330/101","sortOrder":1},{"sectionNumber":"Cable Loom 9R Routing","sectionType":"part","heading":"Cable Loom 9R Routing","content":"## Cable Loom 9R Routing","sortOrder":2},{"sectionNumber":"6/2009","sectionType":"part","heading":"6/2009","content":"## 6/2009","sortOrder":3}],"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"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive addressing a specific manufacturing defect in specific aircraft configurations. The scope remains tightly focused on the identified safety issue (wiring chafing affecting oxygen systems) and has not expanded beyond this original safety purpose."},"complexity_factors":["Single, specific technical requirement with clear physical action (install stirrup, reroute wiring)","Applicability determined by complex conditional logic: specific model list PLUS specific factory modifications present PLUS specific factory modification absent","Cross-reference to European regulator (EASA AD 2009-0076) and Airbus Service Bulletin A330-92-3080","Heavy use of technical aviation terminology (frame numbers, modification numbers, harness codes) without glossary","No nested exceptions or conditional compliance timelines — straightforward 24-month deadline"],"plain_english_summary":"Australia’s Civil Aviation Safety Authority has issued an Airworthiness Directive requiring owners/operators of 15 specific Airbus A330-200/-300 aircraft (those built with a particular factory modification, excluding aircraft with mod 57744) to install a metal stirrup on a terminal block and reroute Cable Loom 9R.  \n\nThe fix prevents chafing between two electrical bundles that could short the passenger emergency oxygen system during decompression. Compliance is required within 24 months of 4 June 2009, per Airbus instructions."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive stays within the original safety corrective purpose: eliminate insufficient clearance and potential chafing between route 9R wiring and adjacent harnesses to prevent possible oxygen supply failure. It does not expand the remedy beyond that narrowly defined production/configuration subset or add unrelated obligations. The measure is a targeted technical fix rather than a broadening of regulatory scope."},"complexity_factors":["Applicability depends on multiple specific production modifications (40379 must be present and one of nine listed mods), plus an explicit exclusion (mod 57744)","Single prescriptive corrective action (install stirrup and re‑route wiring) but must follow a particular Airbus Service Bulletin (A330‑92‑3080) or later EASA‑approved revision (cross‑reference to external document)","Short, single compliance period (24 months) — relatively simple timing condition","Safety rationale relies on aircraft‑specific frame locations (FR C53.9–C55 RH) and specific harness identifiers (6581VB, 5495VB, 6938VB) — technical detail but not legal complexity","Reference to EASA AD 2009‑0076 creates a cross‑regulatory linkage but does not add layered conditional exceptions"],"plain_english_summary":"**What this instrument is**\n\nThis is an Airworthiness Directive (a mandatory safety order for aircraft operators) that requires a specific wiring fix on certain Airbus A330 aeroplanes. It tells operators which aeroplanes are affected, what physical change must be made, which technical instructions to follow, and by when the change must be completed.\n\n**Who it affects**\n\n- Owners/operators of the listed A330 variants (A330-201/202/203/223/243/301/302/303/321/322/323/341/342/343) produced with particular Airbus production modifications: aircraft that have modification 40379 and any one of 49894, 51304, 52048, 52712, 53559, 53732, 54115, 55632 or 55722 embodied at production.  \n- Aeroplanes that already had Airbus modification 57744 during production are excluded (they do not have to comply).\n\n(These applicability rules mean only a subset of A330s — those with certain production configurations but not the later fix 57744 — must act.)\n\n**What must be done**\n\n- Install a metal stirrup on terminal block 5507VT (located between fuselage frames FR 53.9 and FR 54) and re-route the wiring for route 9R in accordance with Airbus Service Bulletin A330-92-3080 dated 12 November 2008 (or a later revision that has been approved by the European Aviation Safety Agency, EASA).  (A Service Bulletin is a manufacturer’s technical instruction; the Directive makes compliance with the specified SB mandatory.)\n\n**When**\n\n- The work must be completed within 24 months from the Directive’s effective date.\n\n**Why the change is required (stated safety concern)**\n\n- During production it was observed that the clearance between the In‑Flight Entertainment wiring route 9R and the wire harness for the Lower Deck Mobile Crew Rest provisions in the area between FR C53.9 and FR C55 RH was too small. That proximity can cause chafing of harness 6581VB against harness 5495VB or 6938VB. If chafing leads to a short circuit, it could disable oxygen supply circuits and prevent a number of passenger oxygen masks from supplying oxygen in an emergency. The Service Bulletin routing change and stirrup installation are the corrective measures. (See Background and Requirement.)\n\n**Who pays and who decides**\n\n- Aircraft owners/operators pay for the parts, maintenance labour and aircraft downtime required to carry out the modification.  \n- The work must be carried out to the Airbus Service Bulletin and any later EASA‑approved revision; the EASA’s approval governs which SB revisions are acceptable.\n\n**Practical effects, costs and compliance issues**\n\n- Direct costs: procurement of the stirrup kit (parts), certified maintenance labour, and the opportunity cost of aircraft timeout for the modification.  \n- Operational impact: scheduling downtime for maintenance facilities with appropriate access to the FR C53.9–C55 RH area and qualified technicians to re‑route wiring and install the stirrup.  \n- Administrative/compliance tasks: recording the modification in the aircraft’s maintenance records and ensuring the correct SB revision is used (EASA approval is required for later revisions).  \n- Substitutes/exclusions: aircraft that already have production modification 57744 are excluded because that mod addresses the condition; operators should check production modification status before planning work.\n\n**Trade‑offs, risk and implementation notes**\n\n- The Directive imposes a one‑time compliance cost on a defined set of aircraft to reduce the risk of oxygen supply failure in an emergency (the safety benefit claimed).  \n- Implementation risks include scheduling delays, part availability, and ensuring the SB revision used is EASA‑approved.  \n- There is limited discretion for operators: the required method is the Airbus Service Bulletin (or an EASA‑approved later revision); alternatives would need regulatory acceptance.\n\n(References in the directive: Applicability, Requirement, Compliance, Background, and reference to EASA AD 2009‑0076.)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-a330-101-cable-loom-9r-routing","history":"/api/acts/ad-a330-101-cable-loom-9r-routing/history","analysis":"/api/acts/ad-a330-101-cable-loom-9r-routing/analysis","conflicts":"/api/acts/ad-a330-101-cable-loom-9r-routing/conflicts","importantCases":"/api/acts/ad-a330-101-cable-loom-9r-routing/important-cases","documents":"/api/acts/ad-a330-101-cable-loom-9r-routing/documents"}}