{"id":"F2006B09463","name":"AD/EMB-110/22 - Rudder Pedal Assembly, Main Bearing Attachment - Inspection and Modification","slug":"ad-emb-110-22-rudder-pedal-assembly-main-bearing-attachment-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53927,"registerId":"commonwealth-F2006B09463-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/EMB-110/22 - Rudder Pedal Assembly, Main Bearing Attachment - Inspection and Modification","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)  Embraer EMB-110 (Bandeirante) Series Aeroplanes\n\n \n\n# AD/EMB-110/22 Rudder Pedal Assembly, Main Bearing\n\nAttachment - Inspection and Modification\n\nApplicability: All model EMB-110 with S/Nos. 110001 to 110385. Document:  Embraer SB No. 110-27-058.\n\nNote: Brazilian AD 82-11-02 refers.\n\n# 3/83\n\n \n\nCompliance: Within 25 hours time in service after 21 January, 1983 and thereafter at intervals not exceeding 100 hours time in service until modified in accordance with Section II of the requirement document.\n\n \n\nBackground: Manufacturer reports that a bearing was displaced from its housing flange rendering the rudder control inoperative.\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 defect in a specific aircraft type. It has not expanded beyond its original purpose of ensuring rudder control integrity."},"complexity_factors":["Single, specific mechanical issue addressed","Only one applicability criterion (serial number range)","Simple compliance timeline: initial inspection + recurring intervals until modification","No defined terms section","No cross-references to other legislation (only references technical document Embraer SB 110-27-058)","Straightforward conditional logic: inspect at X hours, repeat every Y hours, stop when modified"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:** It requires owners and operators of certain Embraer EMB-110 \"Bandeirante\" aircraft (serial numbers 110001 to 110385) to inspect and eventually modify the rudder pedal assembly. Specifically, it addresses a problem where the main bearing in the rudder pedal mechanism could pop out of its housing, which would cause the pilot to lose rudder control — a serious flight safety risk.\n\n**Who must comply:** Anyone operating these specific Embraer aircraft in Australia. The directive applies to all aircraft in the serial number range listed.\n\n**What must be done:**\n- **Initial inspection:** Within 25 hours of flying time after 21 January 1983\n- **Ongoing inspections:** Every 100 hours of flying time thereafter\n- **Permanent fix:** Eventually modify the assembly according to Section II of Embraer Service Bulletin 110-27-058 (the technical repair instructions)\n\n**Why it matters:** A displaced bearing could make the rudder pedals useless, removing the pilot's ability to steer the aircraft on the ground or control yaw in flight. This directive prevents accidents by catching the problem before it causes control failure."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive’s scope is consistent with its stated purpose in the text: it targets EMB-110 aeroplanes with serial numbers 110001–110385 and mandates inspections and a modification intended to address a reported bearing displacement that could render rudder control inoperative. The directive prescribes inspection intervals and identifies the service bulletin (Embraer SB No. 110-27-058) that contains the modification steps (Applicability; Compliance; Document; Background). There is no text indicating an expansion or narrowing of scope beyond that stated purpose."},"complexity_factors":["Narrow applicability: specific to EMB-110 serial numbers 110001–110385 (Applicability)","Fixed, short compliance timeline for initial inspection (within 25 hours TIS after 21 January 1983) and recurring interval (every 100 hours TIS) (Compliance)","Dependency on external technical document (Embraer SB No. 110-27-058, Section II) for the required modification steps (Document)","Limited regulatory discretion in the text—the AD prescribes actions and timings rather than allowing alternatives (Compliance)","Technical nature of the required inspection/modification may require specialised maintenance capability and parts (implicit in reliance on the service bulletin)"],"plain_english_summary":"CASA requires operators of Embraer EMB-110 aeroplanes (serials 110001–110385) to inspect the rudder pedal main bearing and carry out a prescribed modification per Embraer Service Bulletin No. 110-27-058. Inspections must begin soon after 21 Jan 1983 and recur until the SB modification is done. The measure responds to a reported bearing displacement that could disable rudder control; compliance costs fall to aircraft owners."}},"importantCases":[],"_links":{"self":"/api/acts/ad-emb-110-22-rudder-pedal-assembly-main-bearing-attachment-inspection-and-modification","history":"/api/acts/ad-emb-110-22-rudder-pedal-assembly-main-bearing-attachment-inspection-and-modification/history","analysis":"/api/acts/ad-emb-110-22-rudder-pedal-assembly-main-bearing-attachment-inspection-and-modification/analysis","conflicts":"/api/acts/ad-emb-110-22-rudder-pedal-assembly-main-bearing-attachment-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-emb-110-22-rudder-pedal-assembly-main-bearing-attachment-inspection-and-modification/important-cases","documents":"/api/acts/ad-emb-110-22-rudder-pedal-assembly-main-bearing-attachment-inspection-and-modification/documents"}}