{"id":"F2006B03408","name":"AD/B767/54 - Engine and Cargo Compartment Fire Extinguishing Systems","slug":"ad-b767-54-engine-and-cargo-compartment-fire-extinguishing-systems","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42949,"registerId":"commonwealth-F2006B03408-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AD/B767/54 Engine and Cargo Compartment ","sectionType":"part","heading":"AD/B767/54 Engine and Cargo Compartment Fire Extinguishing Systems","content":"# AD/B767/54 Engine and Cargo Compartment Fire Extinguishing Systems\n\nApplicability: As detailed in the requirement document.\n\nRequirement: Action in accordance with the technical requirements of FAA AD 91-05-06. Compliance: As specified in the requirement document.\n\nBackground: This AD requires modification of the engine and cargo compartment fire extinguishing wiring and plumbing to preclude improper connection during maintenance. Compliance with this AD constitutes terminating action for the","sortOrder":0},{"sectionNumber":"6/91","sectionType":"part","heading":"6/91","content":"# AD/B767/54 Engine and Cargo Compartment Fire Extinguishing Systems\n\nApplicability: As detailed in the requirement document.\n\nRequirement: Action in accordance with the technical requirements of FAA AD 91-05-06. Compliance: As specified in the requirement document.\n\nBackground: This AD requires modification of the engine and cargo compartment fire extinguishing wiring and plumbing to preclude improper connection during maintenance. Compliance with this AD constitutes terminating action for the\n\n#   \n6/91","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":false,"description":"Based on the supplied text there is no clear indication that the AD's scope differs from its stated intent. The directive adopts the technical requirements of FAA AD 91-05-06 and delegates applicability and compliance timing to a separate requirement document. However, the terminating-action sentence is incomplete in the supplied excerpt, which creates uncertainty about whether any prior obligations are fully extinguished on compliance; the supplied material does not show a changed scope from the original stated purpose."},"complexity_factors":["Dependency on an external technical document (FAA AD 91-05-06) for the required technical method increases complexity because readers must consult that separate document to know precise steps.","Applicability and compliance details are not contained in the supplied text but are delegated to a separate requirement document (\"As detailed in the requirement document\" / \"As specified in the requirement document\"), creating indirection.","The required work is technical (wiring and plumbing modifications) and will typically require certified maintenance personnel, parts, and downtime, which complicates planning and cost estimation.","The terminating-action clause is truncated in the supplied text (\"constitutes terminating action for the\"), leaving legal effect incomplete and creating uncertainty about the scope of obligations that end on compliance.","Repetition and brevity of the supplied instrument means implementers must assemble multiple documents to get a complete compliance picture, increasing administrative and legal effort."],"plain_english_summary":"This instrument is an airworthiness directive labelled AD/B767/54 that requires changes to the engine and cargo-compartment fire-extinguishing systems for the aircraft covered by the separate requirement document.\n\n- What it does, mechanically: It requires modification of the fire-extinguishing wiring and plumbing in the engine and cargo compartments to prevent incorrect connections during maintenance (Background: \"This AD requires modification of the engine and cargo compartment fire extinguishing wiring and plumbing to preclude improper connection during maintenance\"). The directive directs implementers to follow the technical steps set out in FAA AD 91-05-06 (Requirement: \"Action in accordance with the technical requirements of FAA AD 91-05-06\").\n\n- Who it affects and who decides: The specific aircraft, owners or operators covered and the details of how and when to comply are set out in the separate requirement document (Applicability: \"As detailed in the requirement document\"; Compliance: \"As specified in the requirement document\"). In other words, the requirement document determines which aircraft/parties must act and the timing/conditions for compliance.\n\n- Who pays and who performs the work: The party identified as responsible in the requirement document must carry out the required modifications and therefore will bear the direct cost of those modifications (see Applicability and Compliance references above). The AD points to FAA technical requirements as the method to be used, so implementers must follow those technical instructions when performing the work.\n\n- Compliance effect and follow-up: The AD states that compliance \"constitutes terminating action for the\" — the sentence is incomplete in the supplied text, so the precise follow-up effect or what compliance terminates is unspecified in the supplied material. Where the text is complete, compliance with the AD is intended to be a terminating action for some previously applicable requirement (Background: \"Compliance with this AD constitutes terminating action for the\").\n\n- Practical implications and trade-offs (mechanisms, not judgments): Following the AD means implementing physical changes to wiring and plumbing in specified compartments. That creates a direct compliance cost (time, parts, qualified maintenance labour) for the entities required to do the work. It changes maintenance practice by altering the wiring/plumbing layout or protections so that incorrect reconnections during future maintenance are less likely. The AD reduces discretion about how to meet the safety objective by mandating adherence to FAA AD 91-05-06 technical requirements, while leaving the requirement document to specify which aircraft and the compliance schedule. The incomplete terminating-action sentence introduces uncertainty about what obligations end on compliance unless the requirement document or full AD text clarifies it.\n\n(References to text: Applicability: \"As detailed in the requirement document.\" Requirement: \"Action in accordance with the technical requirements of FAA AD 91-05-06.\" Compliance: \"As specified in the requirement document.\" Background: \"This AD requires modification of the engine and cargo compartment fire extinguishing wiring and plumbing to preclude improper connection during maintenance. Compliance with this AD constitutes terminating action for the\")"},"kimi_summary":{"content_quality":"rejected","complexity_score":2,"rejection_reason":"This appears to be a fragmentary, corrupted, or stub entry rather than complete legislation. The text is garbled with repeated headers, truncated sentences ('terminating action for the'), random '6/91' artifacts, and missing compliance dates/penalty provisions standard in ADs. It resembles a navigation page or database excerpt rather than the complete legislative instrument.","scope_assessment":{"changed":false,"description":"This appears to be a standard airworthiness directive implementing a specific safety fix. The scope remains tightly focused on the Boeing 767 fire extinguishing system modification as originally intended. No scope creep evident in this fragment."},"complexity_factors":["Extremely short — approximately 100 words of operative text","No defined terms section — relies entirely on external reference to FAA AD 91-05-06","No conditional logic or exceptions within the instrument itself","Single operative requirement: 'Action in accordance with...'","Cross-reference to one external document only (FAA AD 91-05-06)","Fragmentary text — appears to be a stub or excerpt with truncated ending ('terminating action for the') and garbled repetition"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's aviation regulator (CASA) requiring specific fixes to aircraft.\n\n**What it does:**\n- Requires owners and operators of **Boeing 767 aircraft** to modify the **engine and cargo compartment fire extinguishing systems**\n- Specifically, the wiring and plumbing must be changed to prevent maintenance crews from accidentally connecting parts incorrectly (which could mean fire suppressant systems fail when needed)\n\n**Who it affects:**\n- Airlines and operators flying Boeing 767s in Australia\n- Maintenance organisations servicing these aircraft\n\n**Why it matters:**\n- Fire in an engine or cargo hold is one of the most serious emergencies in aviation\n- If extinguisher lines are plumbed or wired wrong during maintenance, the system might not work in an actual fire — putting passengers, crew, and cargo at risk\n- This directive makes the fix mandatory and says once you comply, you're done (\"terminating action\") — no further repeated inspections needed\n\n**Key point:** The directive doesn't spell out the technical details here; it simply says \"follow the American FAA's directive 91-05-06\" — a common practice where Australia adopts US safety standards for aircraft designed there."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-54-engine-and-cargo-compartment-fire-extinguishing-systems","history":"/api/acts/ad-b767-54-engine-and-cargo-compartment-fire-extinguishing-systems/history","analysis":"/api/acts/ad-b767-54-engine-and-cargo-compartment-fire-extinguishing-systems/analysis","conflicts":"/api/acts/ad-b767-54-engine-and-cargo-compartment-fire-extinguishing-systems/conflicts","importantCases":"/api/acts/ad-b767-54-engine-and-cargo-compartment-fire-extinguishing-systems/important-cases","documents":"/api/acts/ad-b767-54-engine-and-cargo-compartment-fire-extinguishing-systems/documents"}}