{"id":"F2006B03266","name":"AD/B747/89 - Flight Compartment Ashtray","slug":"ad-b747-89-flight-compartment-ashtray","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42690,"registerId":"commonwealth-F2006B03266-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/89 - Flight Compartment Ashtray","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/B747/89 Flight Compartment Ashtray 4/91\n\nApplicability: Model 747-400 series as listed in Boeing Alert SB 747-25A2862.\n\n \n\nRequirement: Action in accordance with the technical requirements of FAA AD 91-03-16 Amdt 39- 6875.\n\n \n\nNote: Boeing SB 747-25A 2862 Rev. 1 refers.\n\n \n\nCompliance: As specified in the Requirement Document but with a revised effectivity date of 18 April 1991 for Australian registered aircraft.\n\n \n\nBackground: The possibility of smoking material falling behind the sidewall lining when the ashtray is either partially opened or closed, has prompted the issue of this AD. This condition, if not corrected, could result in the smoking material starting a fire.\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":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific mechanical defect in cockpit ashtrays of a particular aircraft model. There is no evidence of scope creep; it remains a targeted safety fix for a discrete hardware issue."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 1 defined term implicitly referenced (the Boeing model series)","Single straightforward requirement: comply with existing FAA directive","No nested conditions or exceptions","Clear, single compliance date with no alternative methods or escalations","Minimal cross-referencing (only to one FAA AD and one Boeing Service Bulletin)"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety fix issued by Australia's Civil Aviation Safety Authority (CASA) for specific Boeing 747 aircraft.\n\n**What it does:** It requires airlines and aircraft operators to fix a fire hazard in the cockpit (flight compartment) ashtrays of Boeing 747-400 series planes. The problem is that cigarette butts or other smoking materials could fall behind the wall lining when the ashtray is partially open or closed, potentially starting a fire.\n\n**Who it affects:** \n- **Operators of Australian-registered Boeing 747-400 aircraft** listed in Boeing's Alert Service Bulletin 747-25A2862\n- Airlines and maintenance crews responsible for keeping these planes airworthy\n\n**What must be done:** Operators must follow the technical instructions in the US Federal Aviation Administration's AD 91-03-16 (as amended), using Boeing Service Bulletin 747-25A2862 Revision 1 as the guide for the fix.\n\n**When:** The fix had to be completed by **18 April 1991** for Australian-registered aircraft.\n\n**Why it matters:** Even something as small as a cockpit ashtray can create serious fire risks in an aircraft. This directive prevents potential in-flight fires caused by smouldering materials falling into inaccessible areas behind the cockpit walls."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Scope change is limited to the compliance/effectivity date: the directive adopts FAA AD 91-03-16 and Boeing SB requirements but revises the effectivity date to 18 April 1991 for Australian-registered aircraft. Applicability (Model 747-400 series) and the technical requirements otherwise follow the referenced documents (Applicability; Requirement; Compliance)."},"complexity_factors":["Limited scope and narrow applicability: targets Model 747-400 series as listed in Boeing Alert SB 747-25A2862 (Applicability).","Delegation to external documents: mandatory compliance is achieved by following FAA AD 91-03-16 and Boeing Service Bulletin technical requirements rather than listing measures in full (Requirement; Note).","Single, specific safety hazard addressed: focuses on ashtray design allowing smoking material to fall and potentially ignite (Background).","Regulatory coordination: adopts a foreign authority's AD and adjusts the effectivity date for Australian-registered aircraft, requiring cross-jurisdictional traceability (Requirement; Compliance).","Compliance timing modification: changes only the effectivity date to 18 April 1991 for Australian aircraft, creating a narrow change in scope (Compliance).","Operational burden implicit not detailed: actions and costs are defined in the referenced FAA/Boeing documents rather than in this instrument (Requirement; Note)."],"plain_english_summary":"This airworthiness directive requires owners/operators of Australian-registered Boeing 747-400 series aircraft (as listed in Boeing Alert SB 747-25A2862) to carry out the technical actions specified in FAA AD 91-03-16 (and Boeing SB Rev.1). It updates the compliance/effectivity date to 18 April 1991 for Australian aircraft. The directive is aimed at preventing smoking material from falling behind the sidewall lining of the flight compartment ashtray, which the document identifies as a potential fire risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-89-flight-compartment-ashtray","history":"/api/acts/ad-b747-89-flight-compartment-ashtray/history","analysis":"/api/acts/ad-b747-89-flight-compartment-ashtray/analysis","conflicts":"/api/acts/ad-b747-89-flight-compartment-ashtray/conflicts","importantCases":"/api/acts/ad-b747-89-flight-compartment-ashtray/important-cases","documents":"/api/acts/ad-b747-89-flight-compartment-ashtray/documents"}}