{"id":"F2006B03386","name":"AD/B767/30 - Cabin Partitions","slug":"ad-b767-30-cabin-partitions","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42888,"registerId":"commonwealth-F2006B03386-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/30 - Cabin Partitions","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 767 Series Aeroplanes\n\n \n\nAD/B767/30  Cabin Partitions 13/89 Applicability:              Model 767 aeroplanes as listed in Boeing Alert SB 767-25A0135 dated 6 July 1989. Requirement:               Action in accordance with Boeing Alert SB 767-25A0135.\n\nNote: FAA AD 89-19-03 refers.\n\n \n\nCompliance: Prior to 31 January 1990 unless previously accomplished.\n\n \n\nBackground: Country of origin AD. Defective attachment bolts allowed collapse of cabin partition on which an attendant seat is mounted.\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\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD enforces corrective action for the defect identified (defective attachment bolts allowing a cabin partition collapse) on the Model 767 aircraft listed in Boeing Alert SB 767-25A0135. The text does not expand or narrow applicability beyond the aircraft listed in that Boeing service bulletin; it mandates compliance with the manufacturer’s service bulletin by the stated deadline. (See: \"Applicability\", \"Requirement\", \"Compliance\", \"Background\")."},"complexity_factors":["Short, single-issue directive addressing a specific defect (cabin partition attachment bolts) noted in the \"Background\".","Dependence on an external technical document (Boeing Alert SB 767-25A0135 dated 6 July 1989) for the specific corrective actions (\"Requirement\").","Fixed compliance deadline that creates operational scheduling pressure (\"Compliance\").","Limited applicability to specific Model 767 aircraft listed in the referenced Boeing SB (\"Applicability\").","Cross-reference to a foreign/producer authority (FAA AD 89-19-03 and country-of-origin AD), which requires users to consult multiple sources for full context (\"Background\" and note)."],"plain_english_summary":"Summary\n\n- What this instrument does (mechanics): The Civil Aviation Safety Authority (CASA) has issued Airworthiness Directive AD/B767/30 requiring operators of specified Boeing 767 aeroplanes to carry out the actions set out in Boeing Alert Service Bulletin (SB) 767-25A0135 dated 6 July 1989. (See: \"Applicability\"; \"Requirement\"). The AD sets a hard compliance deadline: the required actions must be completed prior to 31 January 1990 unless already done. (See: \"Compliance\").\n\n- Who it affects: The AD applies to Model 767 aeroplanes listed in Boeing Alert SB 767-25A0135 (6 July 1989). The immediate operational obligation falls on the aircraft operators/owners of those listed 767 aircraft who must implement the Boeing Alert SB procedures to comply with the directive. (See: \"Applicability\"; \"Requirement\").\n\n- Why it matters (stated reason and policy linkage): The AD records that defective attachment bolts allowed the collapse of a cabin partition on which an attendant seat is mounted; the stated purpose is to address that safety defect. The AD also cross-references the FAA Airworthiness Directive (FAA AD 89-19-03) and notes the action follows the country-of-origin AD. (See: \"Background\"; note referencing FAA AD.)\n\nAnalysis of implementation mechanics, incentives and trade-offs\n\n- Who decides and who sets the technical method: CASA issues the mandatory directive, but the technical remedy to be performed is defined by Boeing Alert SB 767-25A0135 (the operator must follow the manufacturer’s service bulletin). (See: header and \"Requirement\"). This delegates the technical specification of corrective work to the manufacturer’s bulletin while CASA retains regulatory authority to require it.\n\n- Who pays and who bears the compliance burden: The text requires operators of the listed 767s to perform the Boeing SB actions by the deadline; therefore the direct compliance costs (labour, parts, aircraft downtime) will be borne by those operators. (See: \"Applicability\"; \"Requirement\"; \"Compliance\").\n\n- Timing and implementation risk: The AD imposes a fixed compliance date (prior to 31 January 1990). Operators must obtain and implement the Boeing Alert SB procedures before that date; availability of parts, workshop capacity and scheduling will be the operational constraints influencing how quickly operators can comply. (See: \"Compliance\"; \"Requirement\").\n\n- Enforcement and provenance: The AD cites the country-of-origin action and an FAA AD. That signals that CASA’s requirement aligns with an existing foreign authority and with Boeing’s recommended corrective action, reducing ambiguity about the intended technical fix but creating a dependency on the content of the external documents referenced. (See: \"Background\"; note referencing FAA AD; \"Requirement\").\n\n- Practical effects on private choice and business activity: Affected operators must allocate resources (time, money, maintenance capacity) to implement the Boeing SB; they retain freedom to choose when and how to schedule the work provided it meets the SB and the AD’s compliance deadline. The AD does not itself set prices, change ownership, or alter market-entry rules; it imposes a safety compliance obligation for specified aircraft. (See: \"Applicability\"; \"Requirement\"; \"Compliance\").\n\n- Concentration of benefits and costs (mechanism-based): The stated safety benefit accrues to aircraft occupants (reduced risk of partition collapse). The cost is borne directly by the operators of the specified 767s who must carry out the remedial actions. (See: \"Background\"; \"Applicability\"; \"Requirement\").\n\n- Areas of implementation discretion: CASA prescribes compliance with the Boeing Alert SB rather than prescribing detailed alternative technical methods in the AD text. That limits regulatory discretion over the technical means while leaving operators discretion over scheduling and the maintenance providers they use, subject to meeting the SB’s requirements. (See: \"Requirement\").\n\nSource citations: The statements above are grounded in the AD text sections labelled \"Applicability\", \"Requirement\", \"Compliance\" and \"Background\" and in the header identifying the instrument as a CASA airworthiness directive within the Commonwealth schedule."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive addressing a specific mechanical defect. It has not expanded beyond its original purpose of mandating a particular airworthiness fix for a defined aircraft type."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 1 defined applicability criterion (specific Boeing models)","Single requirement referencing external technical document (Boeing SB)","No nested conditions or exceptions","Simple compliance deadline structure (single fixed date)","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It applies to specific **Boeing 767 aircraft**.\n\n**What it does:**\n- Requires airlines and aircraft operators to inspect and fix a safety defect in **cabin partitions** (the walls/dividers inside the passenger cabin)\n- Specifically, it mandates action according to a Boeing technical bulletin (Alert Service Bulletin 767-25A0135) that addresses **faulty attachment bolts**\n\n**Why it matters:**\n- The defective bolts could cause a **cabin partition to collapse** — particularly dangerous because these partitions have **flight attendant seats** mounted on them\n- A collapsing partition could injure crew members and potentially block emergency exits during flight\n\n**Who must comply:**\n- Operators of Boeing 767 models listed in the referenced Boeing bulletin\n- Must complete the fix **before 31 January 1990** (unless already done)\n\n**Where it comes from:**\n- This adopts a US Federal Aviation Administration (FAA) directive (AD 89-19-03) — common practice where Australia follows American safety standards for US-made aircraft"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-30-cabin-partitions","history":"/api/acts/ad-b767-30-cabin-partitions/history","analysis":"/api/acts/ad-b767-30-cabin-partitions/analysis","conflicts":"/api/acts/ad-b767-30-cabin-partitions/conflicts","importantCases":"/api/acts/ad-b767-30-cabin-partitions/important-cases","documents":"/api/acts/ad-b767-30-cabin-partitions/documents"}}