{"id":"F2006B09477","name":"AD/EMB-110/36 Amdt 1 - Elevator Trim Tab Actuation - Dual Control Rod Installation","slug":"ad-emb-110-36-amdt-1-elevator-trim-tab-actuation-dual-control-rod-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53986,"registerId":"commonwealth-F2006B09477-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/EMB-110/36 Amdt 1 - Elevator Trim Tab Actuation - Dual Control Rod Installation","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)  \nEmbraer EMB-110 (Bandeirante) Series Aeroplanes\n\nAD/EMB-110/36\n\nAmdt 1\n\n  \n\nElevator Trim Tab Actuation \\- Dual Control Rod Installation\n\n  \n11/85\n\nApplicability: All model EMB-110 with S/Nos referenced in the Requirement Document. Requirement: Action in accordance with Embraer SB 110-27-068 Rev 1.\n\nNote: Brazilian AD 82-06-01 R5.\n\nCompliance: Within 250 hours time in service after 30 November 1985.\n\nNote: Aircraft which have complied with previous issues of this Directive require further rework in accordance with SB 110-27-068 R1.\n\nBackground: To preclude the effect of rod failure the installation of dual rods with bearings and increased weight to the elevator mass balance is now a mandatory requirement. This amendment references Rev 1 to the Requirement Document.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"This amendment brings Revision 1 of the manufacturer’s requirement document (SB 110-27-068 Rev 1) into mandatory effect and extends the directive’s practical scope by requiring additional rework even for aircraft that complied with earlier issues of the directive. The directive therefore broadens the set of required actions (not just initial compliance but further rework to meet Rev 1) for the listed serial-numbered aircraft. (Requirement; Compliance; Note)"},"complexity_factors":["Dependence on an external technical document (Embraer SB 110-27-068 Rev 1) for the detailed work scope and standards (Requirement).","Applicability limited to serial numbers listed in the Requirement Document, requiring cross-checking of records to determine if an aircraft is affected (Applicability).","Mandatory compliance timeframe measured in flight hours after a fixed calendar date (250 hours TIS after 30 Nov 1985) rather than a simple calendar deadline (Compliance).","Requirement that aircraft which complied with earlier issues must undergo additional rework per the new revision, creating potential rework and coordination complexity (Compliance; Note).","No cost estimates or parts lists in the directive itself, so implementers must obtain additional information from the service bulletin and suppliers (Requirement)."],"plain_english_summary":"Owners/operators of specified Embraer EMB-110 (Bandeirante) aeroplanes must modify elevator trim-tab actuation—installing dual control rods with bearings and increasing elevator mass‑balance—per Embraer Service Bulletin SB 110‑27‑068 Rev 1, within 250 hours TIS after 30 Nov 1985. The work (and costs) is the operator’s responsibility; aircraft previously modified to earlier specs must be reworked. The change aims to prevent single‑rod failure and is enforced by the Civil Aviation Safety Authority."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, technical airworthiness directive focused on a specific mechanical modification to a specific aircraft type. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (approximately 150 words)","Only 1 defined term implicitly referenced (the 'Requirement Document' which is the Embraer Service Bulletin)","No nested conditional logic or cross-references to other legislation","Single straightforward compliance requirement with one deadline","Minimal regulatory machinery - essentially adopts an external technical standard by reference"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for a specific type of aircraft: the **Embraer EMB-110 Bandeirante**.\n\n**What it does:**\n- Requires owners/operators to modify the elevator trim tab control system by installing **dual control rods** (two rods instead of one) with bearings, and adding extra weight to the elevator mass balance.\n- This modification prevents catastrophic failure if a single control rod breaks.\n\n**Who it affects:**\n- All EMB-110 aircraft with specific serial numbers listed in Embraer Service Bulletin 110-27-068 Revision 1.\n\n**Why it matters:**\n- **Safety critical.** A failed elevator trim tab control rod could cause loss of aircraft control. The dual-rod system provides redundancy (a backup if one fails).\n- Aircraft that already complied with earlier versions of this directive must still do additional work under the revised service bulletin.\n\n**Compliance deadline:**\n- Within 250 flight hours after 30 November 1985.\n\n**Key point:** This is Amendment 1, which updates the requirement to reference a revised technical document (Revision 1 of the service bulletin)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-emb-110-36-amdt-1-elevator-trim-tab-actuation-dual-control-rod-installation","history":"/api/acts/ad-emb-110-36-amdt-1-elevator-trim-tab-actuation-dual-control-rod-installation/history","analysis":"/api/acts/ad-emb-110-36-amdt-1-elevator-trim-tab-actuation-dual-control-rod-installation/analysis","conflicts":"/api/acts/ad-emb-110-36-amdt-1-elevator-trim-tab-actuation-dual-control-rod-installation/conflicts","importantCases":"/api/acts/ad-emb-110-36-amdt-1-elevator-trim-tab-actuation-dual-control-rod-installation/important-cases","documents":"/api/acts/ad-emb-110-36-amdt-1-elevator-trim-tab-actuation-dual-control-rod-installation/documents"}}