{"id":"F2006B08772","name":"AD/DAUPHIN/6 Amdt 2 - Tail Rotor Head - Rotating Fairings and Hub Body","slug":"ad-dauphin-6-amdt-2-tail-rotor-head-rotating-fairings-and-hub-body","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52093,"registerId":"commonwealth-F2006B08772-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DAUPHIN/6 Amdt 2 - Tail Rotor Head - Rotating Fairings and Hub Body","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)  \nEurocopter SA 360 and SA 365 (Dauphin) Series Helicopters\n\nAD/DAUPHIN/6\n\nAmdt 2\n\n  \n\nTail Rotor Head \\- Rotating Fairings and Hub Body\n\n  \n6/87\n\nApplicability: All models SA 360, SA 361 and SA 365 equipped with the following: Rotating Fairings P/Nos: 360A33.1033.01 to .05\n\n360A33.1034.20 to .27\n\n360A33.1080.00 to .05\n\n360A33.1081.00 to .05\n\nTail Rotor Hub P/Nos: 360A33.1010.02 to .15 Requirement: Inspect in accordance with Aerospatiale SA 360/365 S.B. No. 05.05.R1.\n\nNote: DGAC AD 83-200-19(b) refers.\n\nCompliance: As detailed in the Requirement Document.\n\nNote: This Directive shall be entered on the Maintenance Release as maintenance required. The inspection required by Para 1C(1) may be performed by the pilot in command, in which case certification is not required. A copy of the Requirement document shall be carried in the aircraft.\n\nBackground: Amendment 2 to this Directive amends the inspection certification requirements.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a targeted amendment to an existing Airworthiness Directive. The scope remains precisely focused on tail rotor head inspections for specific Dauphin helicopter models. Amendment 2 narrows the administrative burden (relaxing certification requirements for pilot-performed inspections) without expanding the substantive safety scope beyond the original tail rotor inspection mandate."},"complexity_factors":["Very short document (approximately 200 words)","Only 4 defined part number ranges to identify affected aircraft","Single primary requirement with one cross-reference to manufacturer service bulletin","One conditional exception (pilot-performed inspection without certification)","No nested definitions or recursive cross-referencing","Clear structure: Applicability → Requirement → Compliance → Background"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for specific Eurocopter Dauphin helicopters.\n\n**What it does:**\n- Requires owners and operators of certain SA 360, SA 361, and SA 365 Dauphin helicopter models to conduct inspections on their **tail rotor heads** — specifically the rotating fairings (the aerodynamic covers that spin with the rotor) and the hub body (the central part that connects the rotor blades).\n\n**Who it affects:**\n- Anyone who owns or operates Eurocopter Dauphin helicopters with specific part numbers for rotating fairings and tail rotor hubs (listed by their \"P/Nos\" or part numbers in the document).\n\n**What must be done:**\n- Inspect the tail rotor components following the manufacturer's Service Bulletin (S.B. No. 05.05.R1) — this is a technical instruction document from the helicopter maker.\n- The inspection must be recorded on the aircraft's **Maintenance Release** (a legal document showing the aircraft is safe to fly).\n- **Important flexibility:** The pilot in command (the person flying the helicopter) can actually perform one specific inspection themselves without needing a licensed mechanic to certify it — though they still need to follow the manufacturer's bulletin.\n- A copy of the manufacturer's service bulletin must be kept in the aircraft at all times.\n\n**Why it matters:**\n- Tail rotor failures can cause catastrophic accidents. This directive ensures critical components are checked for wear, cracks, or other dangerous conditions before they fail in flight.\n\n**Background note:**\n- This is **Amendment 2** of an existing directive, and the key change is making it easier for pilots to perform one of the required inspections without formal certification — reducing administrative burden while maintaining safety."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 2 modifies the AD's certification requirements by permitting the pilot-in-command to perform the inspection specified in Para 1C(1) without formal certification. This changes who may legally carry out and certify that specific inspection (shifting some inspection activity from certified maintenance personnel to pilots), while the substantive inspection tasks remain those in Aerospatiale S.B. No. 05.05.R1. (Source: AD text noting the Pilot-in-Command allowance and Background: \"Amendment 2 to this Directive amends the inspection certification requirements.\")"},"complexity_factors":["External-document dependence: Compliance requires following Aerospatiale SA 360/365 Service Bulletin No. 05.05.R1 rather than only reading the AD itself (\"Inspect in accordance with Aerospatiale SA 360/365 S.B. No. 05.05.R1\").","Detailed applicability by part numbers: The AD applies only to helicopters fitted with a specific, multi-item list of rotating fairing and hub part numbers, which requires operators to check parts inventories carefully (\"Rotating Fairings P/Nos: ... Tail Rotor Hub P/Nos: ...\").","Certification-rule change: Amendment 2 alters who may certify an inspection by explicitly allowing the pilot-in-command to perform the inspection required by Para 1C(1) without certification, creating a hybrid compliance path between qualified maintenance and pilot action (\"The inspection required by Para 1C(1) may be performed by the pilot in command, in which case certification is not required\").","Maintenance-recording and on-board-document requirement: The AD must be entered on the Maintenance Release and a copy of the Requirement document must be carried in the aircraft, adding recordkeeping and document-management tasks for operators (\"This Directive shall be entered on the Maintenance Release... A copy of the Requirement document shall be carried in the aircraft\").","Cross-reference to foreign authority: The AD notes a related DGAC directive (\"DGAC AD 83-200-19(b) refers\"), which may require checking another authority's material for context or additional requirements."],"plain_english_summary":"This airworthiness directive mandates inspections of tail-rotor rotating fairings and hub bodies on Eurocopter SA 360/361/365 helicopters fitted with the listed part numbers. Inspections must follow Aerospatiale Service Bulletin No. 05.05.R1, be recorded on the maintenance release, and a copy of the requirement document must be kept on board. Amendment 2 changes the inspection certification rules by allowing the pilot-in-command to perform the inspection described in Para 1C(1) without formal certification, shifting some compliance activity onto operators/pilots."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-6-amdt-2-tail-rotor-head-rotating-fairings-and-hub-body","history":"/api/acts/ad-dauphin-6-amdt-2-tail-rotor-head-rotating-fairings-and-hub-body/history","analysis":"/api/acts/ad-dauphin-6-amdt-2-tail-rotor-head-rotating-fairings-and-hub-body/analysis","conflicts":"/api/acts/ad-dauphin-6-amdt-2-tail-rotor-head-rotating-fairings-and-hub-body/conflicts","importantCases":"/api/acts/ad-dauphin-6-amdt-2-tail-rotor-head-rotating-fairings-and-hub-body/important-cases","documents":"/api/acts/ad-dauphin-6-amdt-2-tail-rotor-head-rotating-fairings-and-hub-body/documents"}}