{"id":"F2006B07098","name":"AD/S-PUMA/21 Amdt 1 - Tail Rotor Pitch Change Spiders","slug":"ad-s-puma-21-amdt-1-tail-rotor-pitch-change-spiders","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48873,"registerId":"commonwealth-F2006B07098-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/S-PUMA/21 Amdt 1 - Tail Rotor Pitch Change Spiders","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\n# AD/S-PUMA/21\n\nAmdt 1\n\nApplicability: All models.\n\n# Tail Rotor Pitch Change Spiders 7/96\n\n \n\nRequirement: Action in accordance with Eurocopter SB AS332 No. 01.00.43 Rev 1.\n\n \n\nNote: DGAC AD 95-262-056(B)R1 refers.\n\n \n\nCompliance: For Requirement Document:\n\n \n\nParagraph 1.C.1) - At each Daily Inspection after the effective date of this Directive, and\n\n \n\nParagraph 2.B. - no later than the next 250 hour inspection of the Tail Rotor Hub after the effective date of this Directive.\n\n \n\nWhere compliance with Paragraph 2.B. was complied with in accordance with the initial issue of this Directive, re-inspect the shim thickness in accordance with the CAUTION at paragraph 1.D. within 50 hours time in service after the effective date of this amendment.\n\n \n\nThe effective date of the initial issue of this Directive was 13 March 1996. This Amendment has effect from 20 June 1996.\n\n \n\nBackground: This Directive is issued to prevent failure of the pitch change spider.\n\n \n\nAmendment 1 requires a further inspection of shim thickness to preclude interference between the pitch control rod and the cover.\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_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is Amendment 1 to an existing directive. The amendment adds a specific supplementary inspection (shim thickness check) to address an additional failure mode (interference between components). This is a targeted safety enhancement consistent with the original purpose of preventing pitch change spider failures. The scope remains tightly focused on the same aircraft component and safety objective."},"complexity_factors":["Short, single-purpose directive (approximately 250 words)","Only 2 defined compliance periods (daily and 250-hour inspections)","One conditional clause for operators who complied with the original directive","References to external technical documents (Eurocopter Service Bulletin and French DGAC AD) without reproducing their content","No nested definitions or interpretation sections","Clear, sequential structure: Applicability → Requirement → Compliance → Background"],"plain_english_summary":"This CASA Airworthiness Directive mandates inspections and maintenance of the tail rotor pitch change spiders on Eurocopter AS332 Super Puma helicopters. It requires daily visual checks when flown, a detailed inspection within 250 flight hours per Eurocopter SB AS332 No. 01.00.43 Rev 1, and—if the earlier 1996 inspection was done—an extra shim-thickness check within 50 flight hours of this amendment.\n\nIt affects all Australian operators, maintainers and certifiers of these helicopters to prevent loss of tail-rotor control."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 1 does not expand the class of affected aircraft (still all AS332 models) but changes compliance obligations: it adds a further inspection of shim thickness to prevent interference between the pitch control rod and the cover, and imposes a conditional 50‑hour reinspection for helicopters that complied under the initial directive. This alters timing and repeat‑inspection duties rather than applicability."},"complexity_factors":["Multiple, short-interval compliance timings: daily inspections (Paragraph 1.C.1) and a required action by the next 250‑hour tail‑rotor hub inspection (Paragraph 2.B).","Conditional reinspection obligation: where Paragraph 2.B was complied with under the initial issue, a further shim‑thickness reinspection is required within 50 hours time in service after the amendment (Compliance note).","Dependence on external technical document: requires action “in accordance with Eurocopter SB AS332 No. 01.00.43 Rev 1” (Requirement), so operators must interpret and apply that Service Bulletin.","Measurement precision and technical judgement: inspecting and re‑inspecting shim thickness and checking for interference between pitch control rod and cover requires trained maintenance personnel and access to measurement tools (Background; Amendment text).","Broad applicability: applies to all AS332 models (Applicability), so the directive affects the full operator base without model carve-outs.","Cross-reference to foreign regulator: DGAC AD 95-262-056(B)R1 is noted (Note), which may require coordination where international records are used."],"plain_english_summary":"**What it does:** This Airworthiness Directive requires operators of all Eurocopter AS332 (Super Puma) helicopters to follow Eurocopter Service Bulletin AS332 No. 01.00.43 Rev 1, adding daily inspections of the tail‑rotor pitch‑change spider and a shim‑thickness reinspection at the next 250‑hour tail‑rotor hub check.  \n\n**Why it matters:** The amendment adds a 50‑hour reinspection where initial compliance occurred to prevent pitch‑change spider failure. Operators bear inspection costs and face scheduling and measurement burdens."}},"importantCases":[],"_links":{"self":"/api/acts/ad-s-puma-21-amdt-1-tail-rotor-pitch-change-spiders","history":"/api/acts/ad-s-puma-21-amdt-1-tail-rotor-pitch-change-spiders/history","analysis":"/api/acts/ad-s-puma-21-amdt-1-tail-rotor-pitch-change-spiders/analysis","conflicts":"/api/acts/ad-s-puma-21-amdt-1-tail-rotor-pitch-change-spiders/conflicts","importantCases":"/api/acts/ad-s-puma-21-amdt-1-tail-rotor-pitch-change-spiders/important-cases","documents":"/api/acts/ad-s-puma-21-amdt-1-tail-rotor-pitch-change-spiders/documents"}}