{"id":"F2006B03336","name":"AD/B767/16 - Engine Strut Hydraulic Line Support Bracket","slug":"ad-b767-16-engine-strut-hydraulic-line-support-bracket","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42773,"registerId":"commonwealth-F2006B03336-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/16 - Engine Strut Hydraulic Line Support Bracket","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/B767/16 Engine Strut Hydraulic Line Support Bracket 8/87\n\nApplicability: All models listed in Boeing Service Bulletin 767-29-0032. Requirement: Action in accordance with Boeing Service Bulletin No. 767-29-0032. Compliance:               Prior to 31 March 1988.\n\nBackground: The manufacturer has received approximately ten reports of bracket cracks. There has also been two additional reports of broken brackets allowing the flange and clamp to migrate and wear the adjacent fuel line.\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":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-limited safety directive focused on a specific mechanical defect. It has not expanded beyond its original purpose of mandating a single inspection/repair action for a specific aircraft component."},"complexity_factors":["Extremely short document (under 200 words)","Only 4 operative sections: Applicability, Requirement, Compliance, and Background","No defined terms section — relies entirely on external Boeing documentation","Single, unambiguous compliance action (follow the Service Bulletin)","No nested conditions, exceptions, or cross-references to other legislation","Clear, fixed deadline with no alternative compliance methods stated"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). Think of it as a \"recall notice\" for aircraft, but legally binding.\n\n**What it does:** It requires owners and operators of **Boeing 767 aeroplanes** to inspect and fix a specific problem with **engine strut hydraulic line support brackets** (metal parts that hold hydraulic pipes in place near the engine).\n\n**The safety issue:** The manufacturer received about ten reports of cracks in these brackets, plus two reports where brackets actually broke completely. When the bracket breaks, the clamp and flange can move around and rub against a nearby fuel line — creating a serious fire risk.\n\n**Who must act:** Anyone operating Boeing 767 models covered by **Boeing Service Bulletin 767-29-0032**.\n\n**What they must do:** Follow the exact repair instructions in that Boeing Service Bulletin.\n\n**Deadline:** The work had to be completed **before 31 March 1988**.\n\n**Why it matters:** This prevents potential fuel leaks and engine fires caused by broken brackets wearing through fuel lines. Ignoring an AD is illegal and can ground an aircraft."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD’s scope aligns with its stated purpose in the document: it targets the models listed in Boeing Service Bulletin 767-29-0032 and mandates the corrective work described in that service bulletin to address reported bracket cracks and failures. The AD does not widen applicability beyond the referenced models nor introduce additional obligations beyond following the service bulletin and meeting the compliance deadline. (Applicability; Requirement; Compliance; Background)"},"complexity_factors":["Narrow technical scope limited to the hydraulic line support bracket on Boeing 767 models listed in Boeing Service Bulletin 767-29-0032 (Applicability)","Mandatory compliance depends on an external technical document (Boeing Service Bulletin No. 767-29-0032), not on detailed steps contained in the AD itself (Requirement)","Fixed statutory deadline for completion (prior to 31 March 1988) which requires operators to schedule work within a set timeframe (Compliance)","Potential operational impact from inspections/repairs (downtime, parts and labour costs) though the AD does not quantify these (Requirement; Compliance)","Limited procedural discretion in the AD text — technical choices are determined by the service bulletin, not by the AD (Requirement)"],"plain_english_summary":"This AD requires operators of the Boeing 767s listed in Boeing Service Bulletin 767-29-0032 to carry out that service bulletin’s work before 31 March 1988. CASA made the manufacturer’s inspection/repair instructions mandatory to address reported cracked and two broken hydraulic line support brackets that risk abrading an adjacent fuel line. Affected operators/maintenance providers bear the cost and must schedule the corrective work to meet the deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-16-engine-strut-hydraulic-line-support-bracket","history":"/api/acts/ad-b767-16-engine-strut-hydraulic-line-support-bracket/history","analysis":"/api/acts/ad-b767-16-engine-strut-hydraulic-line-support-bracket/analysis","conflicts":"/api/acts/ad-b767-16-engine-strut-hydraulic-line-support-bracket/conflicts","importantCases":"/api/acts/ad-b767-16-engine-strut-hydraulic-line-support-bracket/important-cases","documents":"/api/acts/ad-b767-16-engine-strut-hydraulic-line-support-bracket/documents"}}