{"id":"F2006B04474","name":"AD/BELL 206/19 Amdt 1 - Tail Rotor Pedal Controls - Inspection","slug":"ad-bell-206-19-amdt-1-tail-rotor-pedal-controls-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44311,"registerId":"commonwealth-F2006B04474-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 206/19 Amdt 1 - Tail Rotor Pedal Controls - Inspection","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)  Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters\n\n \n\nAD/BELL 206/19\n\nAmdt 1\n\n\nTail Rotor Pedal Controls - Inspection 6/70\n\n \n\nApplicability: All model AB-206A fitted with hydraulically boosted tail rotor pitch control; and All model 206A with S/Nos. 4 to 497.\n\n \n\nRequirement: Check the tail rotor pedal spring and friction adjustment and re- adjust as necessary in accordance with the requirements of Section IV the Maintenance and Overhaul Instructions.\n\n \n\nCompliance: At intervals not exceeding 100 hours time in service. Background: AD/Agusta 206/10A equivalent.\n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The supplied text is an amendment notice (Amdt 1) but contains only the operative requirement, applicability and compliance interval. The text does not include a prior version for comparison or any explicit language showing an expansion or narrowing of scope. On the face of the document, the directive prescribes inspection and adjustment requirements consistent with the stated equivalence to AD/Agusta 206/10A, with no explicit evidence in this instrument that the affected population or actions have been altered from an earlier version."},"complexity_factors":["Narrow, specific applicability (certain AB-206A models and 206A serial numbers 4–497) reduces scope complexity (Applicability).","Single, well-defined technical requirement (check and re-adjust pedal spring and friction) lowers procedural complexity (Requirement).","Mandatory interval (every ≤100 hours TIS) is simple but creates operational scheduling requirements (Compliance).","Requirement cross-references an external technical document (Section IV of the Maintenance and Overhaul Instructions), which adds practical complexity because implementers must consult and correctly apply that manual (Requirement).","Technical nature of the task requires qualified maintenance personnel and possible parts, creating administrative and cost factors despite regulatory simplicity (Requirement)."],"plain_english_summary":"This AD mandates recurring inspections (≤100 flight hours) of the tail rotor pedal spring and friction adjustment on specified Bell/Agusta 206 helicopters, with re‑adjustment as required per Section IV of the Maintenance and Overhaul Instructions. It affects owners/operators and maintenance organisations, who bear inspection and adjustment costs; the intent is to reduce tail‑rotor pedal‑control failures by enforcing regular preventive maintenance."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive (AD) — a targeted safety instrument with narrow, specific scope from inception. It has not expanded beyond its original purpose of ensuring tail rotor pedal safety on specific helicopter models."},"complexity_factors":["Very short document (under 200 words)","Only 2 defined applicability categories (specific model variants)","Single straightforward requirement with reference to external manual","Simple periodic compliance interval (100 hours)","No nested conditions, exceptions, or cross-references to other legislation","Minimal regulatory machinery — essentially a maintenance instruction with legal force"],"plain_english_summary":"This is a **safety directive for helicopter operators** that mandates regular inspections of tail rotor pedal controls on specific Bell helicopter models.\n\n**What it does:**\n- Requires operators to check and adjust the tail rotor pedal spring and friction settings on affected helicopters\n- These adjustments must follow the manufacturer's Maintenance and Overhaul Instructions (Section IV)\n\n**Who it affects:**\n- Owners and operators of:\n  - All **AB-206A model helicopters** with hydraulic boost systems for tail rotor pitch control\n  - All **206A model helicopters** with serial numbers 4 through 497\n\n**Why it matters:**\nThe tail rotor controls the helicopter's direction (yaw). If the pedal spring or friction adjustment is wrong, the pilot could lose directional control — a serious safety risk. This directive prevents accidents by ensuring these critical controls are checked every 100 flight hours.\n\n**Compliance:**\n- Inspections required **every 100 hours of flight time** (\"time in service\")\n- This replaces an earlier similar directive (AD/Agusta 206/10A)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-206-19-amdt-1-tail-rotor-pedal-controls-inspection","history":"/api/acts/ad-bell-206-19-amdt-1-tail-rotor-pedal-controls-inspection/history","analysis":"/api/acts/ad-bell-206-19-amdt-1-tail-rotor-pedal-controls-inspection/analysis","conflicts":"/api/acts/ad-bell-206-19-amdt-1-tail-rotor-pedal-controls-inspection/conflicts","importantCases":"/api/acts/ad-bell-206-19-amdt-1-tail-rotor-pedal-controls-inspection/important-cases","documents":"/api/acts/ad-bell-206-19-amdt-1-tail-rotor-pedal-controls-inspection/documents"}}