{"id":"F2006B04104","name":"AD/BEECH 60/43 - Outflow/Safety Valve","slug":"ad-beech-60-43-outflow-safety-valve","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43785,"registerId":"commonwealth-F2006B04104-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 60/43 - Outflow/Safety Valve","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBeechcraft 60 (Duke) Series Aeroplanes\n\nAD/BEECH 60/43 Outflow/Safety Valve 3/98\n\nApplicability: All 60 and A60 aircraft serial numbers P-3 through P-246 with Kit No 60-5024-1 S incorporated, Duke B-60 aircraft serial number P-247 through P-307 with Kit No 60- 5024-3 S incorporated and Duke B-60 serial numbers P-308 through P-596.\n\nRequirement: Inspect and if necessary replace the outflow/safety valve in accordance with the procedures detailed in Beech SB 2484 Rev 1 dated October 1995.\n\nNo person shall install on any aircraft any Outflow/Safety Valve found to be unserviceable in accordance with this directive.\n\nNote: FAA AD 97-25-01 Amdt 39-10224 refers.\n\nCompliance: Within 200 hours’ time in service or 4 months, whichever occurs first, from the effective date of this directive.\n\nThis airworthiness directive becomes effective on the 26 February 1998.\n\nBackground: Manufacturing problems with the safety valve may cause a rapid decompression of the aircraft should a valve failure occur.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with a narrow, specific scope — addressing a known manufacturing defect in a particular aircraft component. It has not expanded beyond its original safety purpose."},"complexity_factors":["Single, specific technical requirement (inspect/replace one component)","Limited applicability (specific aircraft models, serial number ranges, and modification kits)","Clear compliance deadline (200 hours or 4 months)","No nested exceptions or conditional logic","Only 1 defined term implicitly referenced (time in service)","Short document (approximately 150 words)","Single cross-reference to FAA AD 97-25-01 (informational only)"],"plain_english_summary":"This is a **safety order for specific Beechcraft Duke aircraft**.\n\n**What it does:**\nThe Civil Aviation Safety Authority (CASA) is requiring owners and operators of certain Beechcraft 60 Duke aeroplanes to **inspect and potentially replace a faulty outflow/safety valve**. This valve controls cabin pressure. If it fails, the aircraft could rapidly lose pressure mid-flight — a serious safety risk.\n\n**Who it affects:**\n- Owners and operators of Beechcraft 60, A60, and B-60 Duke aircraft with specific serial numbers (P-3 through P-596)\n- Only applies to aircraft that have had certain modification kits installed (Kit No 60-5024-1 S or 60-5024-3 S)\n- Maintenance engineers who work on these aircraft\n\n**What must be done:**\n- Inspect the outflow/safety valve following Beech Service Bulletin 2484 (Revision 1, October 1995)\n- Replace the valve if it fails inspection\n- **Banned:** No one can install a faulty valve on any aircraft\n\n**When:**\nWithin 200 flight hours **or** 4 months (whichever comes first) from 26 February 1998.\n\n**Why it matters:**\nManufacturing defects in these valves could cause **rapid decompression** — a dangerous emergency where the cabin suddenly loses pressure. This directive prevents that by catching faulty valves before they fail."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive applies only to the specific serial‑numbered Beechcraft 60/A60/B‑60 aircraft listed and imposes an inspection/replacement requirement to address a manufacturing defect in the safety valve. It does not extend applicability beyond those serial ranges or alter other certification obligations in the text of this directive."},"complexity_factors":["Applicability: precise serial‑number ranges across multiple kit incorporations (Applicability) increases tracking and applicability checks.","External procedure reliance: inspection/replacement must follow Beech SB 2484 Rev 1 (Requirement), requiring access to and adherence to an external service bulletin.","Conditional action: 'inspect and if necessary replace' creates a decision point for operators/maintenance providers during compliance.","Prohibition on reinstallation: 'No person shall install...unserviceable' (Requirement) adds a compliance control and disposal/parts management obligation.","Short compliance window: 200 flight hours or 4 months from the directive effective date (Compliance) imposes scheduling/operational impact.","Cross‑reference to FAA AD 97‑25‑01 (Note) requires awareness of related foreign regulatory material.","Safety rationale tied to potential rapid decompression (Background) raises urgency and may affect operator risk assessments."],"plain_english_summary":"This airworthiness directive requires operators of specified Beechcraft 60/A60/B‑60 serial numbers to inspect, and if necessary replace, the outflow/safety valve following Beech Service Bulletin 2484 Rev 1. It also forbids reinstalling any valve found unserviceable. Compliance is required within 200 flight hours or 4 months of the effective date. CASA says the measure responds to manufacturing defects that could cause rapid decompression; operators bear the inspection and replacement cost and potential aircraft downtime."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-60-43-outflow-safety-valve","history":"/api/acts/ad-beech-60-43-outflow-safety-valve/history","analysis":"/api/acts/ad-beech-60-43-outflow-safety-valve/analysis","conflicts":"/api/acts/ad-beech-60-43-outflow-safety-valve/conflicts","importantCases":"/api/acts/ad-beech-60-43-outflow-safety-valve/important-cases","documents":"/api/acts/ad-beech-60-43-outflow-safety-valve/documents"}}