{"id":"F2006B08440","name":"AD/CESSNA 560/3 - Outflow Safety Valve","slug":"ad-cessna-560-3-outflow-safety-valve","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115932,"registerId":"commonwealth-F2006B08440-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 560/3 - Outflow Safety Valve","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)  Cessna 560 (Citation V) Series Aeroplanes\n\n \n\nAD/CESSNA 560/3 Outflow Safety Valve 5/96\n\nApplicability: All Cessna 560 series aircraft.\n\n \n\nRequirement: Unless previously carried out, action in accordance with Allied Signal Service Bulletin 103576-21-4055.\n\n \n\nNote: FAA AD 95-25-10 Amdt 39-9456 refers.\n\n \n\nCompliance: Within 200 hours time in service from 25 April 1996 or prior to 31 July 1996, whichever occurs first.\n\n \n\nBackground: The manufacturer has advised that cracking has been found in two valve poppets of a particular batch. This cracking may cause failure of the outflow safety valve which could result in rapid decompression of the aircraft.\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":true,"description":"The AD applies to all Cessna 560 series aircraft (Applicability) while the Background records cracking found in two valve poppets from a particular batch. That indicates the instrument’s operational scope extends beyond the immediately observed affected batch: it imposes the corrective action fleet-wide rather than limiting it in the AD text to only aircraft with parts from the identified batch."},"complexity_factors":["Reliance on an external technical document (Allied Signal Service Bulletin 103576-21-4055) for the detailed corrective action rather than including those steps in the AD (Requirement).","Applicability is broad (all Cessna 560 series) while the Background cites defects in a particular batch, producing a precautionary expansion of scope (Applicability; Background).","Dual compliance deadline (200 hours time in service from a specified date OR a calendar date) requires operators to track both flight hours and calendar timing (Compliance).","The AD text does not identify specific part or batch numbers within itself, so operators must cross-check the service bulletin to determine whether parts on their aeroplane are affected (Background; Requirement).","Reference to a foreign regulatory action (FAA AD 95-25-10) creates a need to reconcile multiple documents for full regulatory context (Note)."],"plain_english_summary":"Operators of Cessna 560 (Citation V) series aeroplanes must carry out the corrective work specified in Allied Signal Service Bulletin 103576-21-4055 (unless already done) within the AD’s stated compliance window.  \n\nThis affects aircraft owners/operators and their maintenance providers, imposing inspection/repair costs and downtime to address reported cracked valve poppets that could cause outflow safety‑valve failure and possible rapid decompression."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive focused specifically on a known manufacturing defect in outflow safety valves. It has not expanded beyond its original purpose of addressing the cracked valve poppet issue."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 1 defined applicability criterion (Cessna 560 series)","Single straightforward requirement with one cross-reference to a service bulletin","Simple compliance deadline structure (whichever occurs first of two dates)","No nested exceptions, conditional logic, or interpretive provisions","Minimal legislative cross-referencing (only one note referencing FAA AD 95-25-10)"],"plain_english_summary":"**What this is:** An Airworthiness Directive (AD) — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) requiring specific repairs or inspections on certain aircraft.\n\n**What it does:** Orders owners and operators of **Cessna 560 series aircraft** (also known as Citation V jets) to inspect and fix a problem with the **outflow safety valve** — a component that helps regulate cabin pressure.\n\n**The problem:** The manufacturer found **cracks in valve poppets** (small moving parts inside the valve) from a particular production batch. If these cracks cause the valve to fail, the aircraft could experience **rapid decompression** — a dangerous loss of cabin pressure at altitude.\n\n**What must be done:** Aircraft operators must follow the repair instructions in **Allied Signal Service Bulletin 103576-21-4055** (a technical document from the parts manufacturer) unless they've already done so.\n\n**Who it affects:** Anyone who owns, operates, or maintains Cessna 560 series aircraft in Australia.\n\n**When it had to be done:** Within **200 flight hours** starting from 25 April 1996, or before 31 July 1996 — whichever came first.\n\n**Why it matters:** This is a **flight safety issue**. A failed outflow valve could cause sudden loss of cabin pressure, potentially endangering everyone on board. The directive references a corresponding US Federal Aviation Administration (FAA) directive, showing this was an internationally recognised safety concern."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-560-3-outflow-safety-valve","history":"/api/acts/ad-cessna-560-3-outflow-safety-valve/history","analysis":"/api/acts/ad-cessna-560-3-outflow-safety-valve/analysis","conflicts":"/api/acts/ad-cessna-560-3-outflow-safety-valve/conflicts","importantCases":"/api/acts/ad-cessna-560-3-outflow-safety-valve/important-cases","documents":"/api/acts/ad-cessna-560-3-outflow-safety-valve/documents"}}