{"id":"F2006B07092","name":"AD/S-PUMA/14 - Swashplate Scissors","slug":"ad-s-puma-14-swashplate-scissors","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48859,"registerId":"commonwealth-F2006B07092-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/S-PUMA/14 - Swashplate Scissors","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)  Eurocopter AS 332 (Super Puma) Series Helicopters\n\n \n\nAD/S-PUMA/14 Swashplate Scissors  10/93 DM\n\nApplicability: All AS 332 C, C1, L and L1 helicopters fitted with swashplate rotating and non- rotating scissor links P/N 330A31-1407-22 installed with carbide swivel bearings.\n\n \n\nRequirement: Action in accordance with Eurocopter Telex Service Nr 10063.S1/0176/93 dated 25 June 93. Telex Service No 01-36 R1 refers.\n\n \n\nNote: DGAC AD 93-106-050(B) refers.\n\n \n\nCompliance: Within 10 hours time in service from 30 July 1993.\n\n \n\nBackground: The manufacturer has advised that a rotating scissors link suffered an in-flight failure in the shank bending radius of the swivel bearing.\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, targeted safety directive addressing a specific mechanical failure in specific helicopter models. It has not expanded beyond its original purpose of mandating corrective action for the swashplate scissors defect."},"complexity_factors":["Single, specific mechanical defect addressed","Only one applicability criterion (four model variants with specific part number)","Single compliance action referencing external manufacturer document","No nested exceptions or conditional logic","No defined terms section — uses standard aviation terminology","Background is one sentence explaining the failure mode","Total length: approximately 150 words of substantive content"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or inspections on aircraft.\n\n**What it does:**\nOrders owners and operators of certain Eurocopter AS 332 \"Super Puma\" helicopters to take immediate action to fix a dangerous defect in the **swashplate scissors links** — mechanical components that help control the helicopter's rotor blades.\n\n**The problem:**\nA rotating scissors link failed in flight due to a crack forming in the \"shank bending radius\" (the curved part where the metal swivel bearing attaches). This is a critical failure — if the scissors link breaks, the pilot could lose control of the rotor system.\n\n**Who must act:**\nAnyone operating AS 332 C, C1, L, or L1 model helicopters that have specific part numbers (P/N 330A31-1407-22) with carbide swivel bearings installed.\n\n**What they must do:**\nFollow the manufacturer's emergency instructions in Eurocopter Telex Service Nr 10063.S1/0176/93 (dated 25 June 1993). This is essentially a factory bulletin telling technicians exactly how to inspect or replace the faulty parts.\n\n**Deadline:**\nWithin 10 hours of flight time after 30 July 1993.\n\n**Why it matters:**\nThis is a life-or-death safety issue. The directive was issued after an actual in-flight failure occurred, meaning helicopters were flying with a known defect that could cause catastrophic loss of control. The short compliance window (10 flight hours) reflects the urgency."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The instrument, as presented, sets an initial, narrowly defined requirement: it applies to AS 332 C, C1, L and L1 helicopters fitted with scissor links P/N 330A31-1407-22 with carbide swivel bearings and mandates actions in a specific Eurocopter telex within a 10-hour window. The text contains no indication that the scope has been expanded or narrowed from a prior version; it appears to be the contained directive for that identified set of aircraft and part installations. (Applicability; Requirement; Compliance; Background)"},"complexity_factors":["Narrow technical applicability (specific helicopter models, specific part number and specific bearing material) which requires precise fleet-level inventory checks (Applicability)","Short compliance deadline (10 hours from 30 July 1993) creating urgent operational scheduling and downtime pressures (Compliance)","Directive delegates operational detail to an external manufacturer telex, so the AD is procedural but relies on another document for technical steps (Requirement)","Cross-reference to foreign regulator AD and a secondary telex, requiring operators to track multiple documents and possibly harmonise actions (Note; Requirement)","Safety-critical failure mode (in-flight component failure) increases implementation risk and reduces scope for relaxed or delayed compliance (Background)"],"plain_english_summary":"This AD mandates that operators of AS332 C/C1/L/L1 helicopters fitted with scissor link P/N 330A31-1407-22 with carbide swivel bearings must carry out the maintenance/corrective actions in Eurocopter Telex No.10063.S1/0176/93 (and related telex) within 10 flight hours from 30 July 1993, after a reported in‑flight scissor‑link failure.  \n\nThe measure is time‑critical, implemented via CASA and the manufacturer telex, imposes inspection/repair/replacement costs and likely short‑notice aircraft downtime to mitigate the identified failure risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-s-puma-14-swashplate-scissors","history":"/api/acts/ad-s-puma-14-swashplate-scissors/history","analysis":"/api/acts/ad-s-puma-14-swashplate-scissors/analysis","conflicts":"/api/acts/ad-s-puma-14-swashplate-scissors/conflicts","importantCases":"/api/acts/ad-s-puma-14-swashplate-scissors/important-cases","documents":"/api/acts/ad-s-puma-14-swashplate-scissors/documents"}}