{"id":"F2006B03003","name":"AD/B747/102 - P180-1 Terminal Strip Nuts","slug":"ad-b747-102-p180-1-terminal-strip-nuts","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42362,"registerId":"commonwealth-F2006B03003-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/102 - P180-1 Terminal Strip Nuts","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)  Boeing 747 Series Aeroplanes\n\n \n\nAD/B747/102 P180-1 Terminal Strip Nuts  2/92 DM\n\n \n\nApplicability: As specified in the requirement document.\n\n \n\nRequirement: Action in accordance with the technical requirements of FAA AD 91-23-09. Compliance:              Prior to 10 January 1992.\n\nBackground: The FAA have advised that a report has been received of loss of battery power due to a loose power feeder terminal connection. This condition, if not corrected, could result in fire and/or loss of electrical power to flight critical systems in the event of failure of the aircraft primary electrical power system.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD adopts the FAA technical requirements for the specified Boeing 747 series aeroplanes and sets a compliance deadline. The text contains no language indicating a change of scope from the FAA requirement; it requires operators to perform the actions described in FAA AD 91-23-09 for the aircraft listed in the requirement document, by the stated date."},"complexity_factors":["Short, single‑issue directive whose technical content is entirely by reference to another instrument (FAA AD 91-23-09), reducing internal complexity but creating a dependency.","Applicability is not listed in full in this text; users must consult the requirement document to determine whether a specific aircraft is covered.","Clear, fixed compliance deadline (prior to 10 January 1992) simplifies scheduling but imposes a hard date.","Technical work implied (inspection/repair of electrical terminal connections) requires qualified maintenance personnel and possible parts, adding logistical complexity.","Regulatory reference chain (CASA AD adopting FAA AD) adds an extra document for interpretation and compliance verification."],"plain_english_summary":"This AD requires operators of the Boeing 747 aeroplanes covered by FAA AD 91‑23‑09 to carry out the inspections and corrective work specified in that FAA directive—adopted by the Civil Aviation Safety Authority—and to complete it before 10 January 1992.\n\nIt addresses a reported loose battery power‑feeder terminal that could cause fire or loss of electrical power to flight‑critical systems; responsibility for costs and execution falls to operators and maintenance organisations."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive with no legislative expansion. It addresses a specific mechanical defect in a specific aircraft type and does not represent scope creep from any original enabling legislation."},"complexity_factors":["Extremely short document (under 200 words)","No defined terms section — relies entirely on external FAA document for technical specifications","Single, unambiguous compliance deadline with no conditional exceptions","No cross-references to other Australian legislation beyond the enabling Civil Aviation Regulations 1998","Simple binary applicability (applies to Boeing 747 series as per external doc)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety fix ordered by Australia's aviation regulator (CASA) for specific Boeing 747 aircraft.\n\n**What it does:**\nOrders airlines and aircraft operators to inspect and fix a problem with **P180-1 terminal strip nuts** — small but critical components in the aircraft's electrical system. These nuts secure power connections to the battery.\n\n**Why it matters:**\nLoose terminal connections have already caused **loss of battery power** on at least one aircraft. If not fixed, this could cause:\n- **Fire** (from arcing/short circuits)\n- **Complete electrical failure** if the main power system fails (the battery is the backup)\n\n**Who must comply:**\nOperators of Boeing 747 series aircraft, as specified in the referenced FAA document (AD 91-23-09).\n\n**The deadline:**\nAll affected aircraft had to be fixed **before 10 January 1992**.\n\n**How it works:**\nRather than rewriting the technical instructions, CASA simply adopts the American FAA's safety directive (AD 91-23-09) by reference — a common practice in aviation where technical standards are harmonised across countries."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-102-p180-1-terminal-strip-nuts","history":"/api/acts/ad-b747-102-p180-1-terminal-strip-nuts/history","analysis":"/api/acts/ad-b747-102-p180-1-terminal-strip-nuts/analysis","conflicts":"/api/acts/ad-b747-102-p180-1-terminal-strip-nuts/conflicts","importantCases":"/api/acts/ad-b747-102-p180-1-terminal-strip-nuts/important-cases","documents":"/api/acts/ad-b747-102-p180-1-terminal-strip-nuts/documents"}}