{"id":"F2006B09474","name":"AD/EMB-110/32 Amdt 1 - Elevator Front Spar - Inspection and Modification","slug":"ad-emb-110-32-amdt-1-elevator-front-spar-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53977,"registerId":"commonwealth-F2006B09474-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/EMB-110/32 Amdt 1 - Elevator Front Spar - 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\nAD/EMB-110/32\n\nAmdt 1\n\n\nElevator Front Spar - Inspection and Modification 2/85\n\n \n\nApplicability: All model EMB110 with S/Nos 110001 to 110401, 110403 to 110412, 110414 to\n\n110423, 110425 to 110428, which have not been modified to SB 110-27-068.\n\n \n\nRequirement: Embraer SB 110-55-026.\n\n \n\nCompliance: 1. Inspect prior to issue of the next Maintenance Release after 31 August 1984 and thereafter at intervals not exceeding 250 hours time in service until modified.\n\n \n\n2. Modify within 1000 hours time in service after 28 February 1985.\n\n \n\nBackground: This amendment makes modification by the installation of heavier gauge angles on the elevator front spar a requirement.\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 an amendment to an existing Airworthiness Directive (AD/EMB-110/32). The amendment's stated purpose is to make a previously optional modification mandatory. The scope remains tightly focused on the specific structural issue (elevator front spar) for the specific aircraft series, consistent with the original intent of ensuring airworthiness of this aircraft type."},"complexity_factors":["Very short document (approximately 150 words)","Only 3 defined applicability criteria (aircraft model, serial number ranges, exclusion for already-modified aircraft)","Two simple compliance requirements with clear deadlines","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Single technical reference to manufacturer service bulletin (SB 110-55-026)","No nested conditions or exceptions"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nOrders owners and operators of certain **Embraer EMB-110 Bandeirante aircraft** to inspect and modify the **elevator front spar** (a structural component that helps control the plane's pitch). The modification involves installing stronger, heavier metal brackets (\"heavier gauge angles\") to prevent structural failure.\n\n**Who it affects:**\n- Owners and operators of EMB-110 aircraft with specific serial numbers (110001 to 110401, 110403 to 110412, 110414 to 110423, and 110425 to 110428)\n- Only applies to planes that haven't already been modified under a previous service bulletin (SB 110-27-068)\n\n**What must be done:**\n1. **Inspections:** Check the elevator front spar before the next Maintenance Release after 31 August 1984, then repeat every 250 flight hours until the modification is done\n2. **Modification:** Install the stronger brackets within 1,000 flight hours after 28 February 1985\n\n**Why it matters:**\nThis directive prevents potential catastrophic failure of the elevator control system. The amendment makes the modification **mandatory** rather than optional, ensuring all affected aircraft receive the structural reinforcement."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The amendment converts a previously prescribed action into a mandatory modification: it makes the installation of heavier-gauge angles on the elevator front spar a requirement and sets a modification deadline (see 'Background' and 'Compliance: 2'), in addition to ongoing inspection intervals ('Compliance: 1'). Applicability remains tied to the listed serial numbers and exclusion for aircraft already modified to SB 110-27-068 ('Applicability')."},"complexity_factors":["Applicability limited to aircraft with serial numbers listed and excluding those already modified to SB 110-27-068 — requires record checks to determine applicability (see 'Applicability').","Mandates compliance with an external technical document: Embraer SB 110-55-026 — introduces dependency on the service bulletin's procedures and parts (see 'Requirement').","Inspection scheduling: must inspect before the next Maintenance Release after 31 August 1984 and then at intervals not exceeding 250 hours time in service until modified — creates recurring monitoring and recordkeeping obligations (see 'Compliance: 1').","Modification deadline: must modify within 1000 hours time in service after 28 February 1985 — requires planning for parts, downtime and certified maintenance resources (see 'Compliance: 2').","Technical nature of the change: installation of heavier gauge angles on the elevator front spar — a structural modification likely requiring authorised maintenance action (see 'Background').","Regulatory form: issued as an amendment to an Airworthiness Directive under Civil Aviation Regulations Part 39 — establishes a legally enforceable maintenance requirement (see header).","Cost and operational burden will fall on owners/operators who must carry out inspections and the mandated modification within the stated timeframes (see 'Compliance: 1–2')."],"plain_english_summary":"This airworthiness directive requires owners/operators of specified Embraer EMB-110 (Bandeirante) aircraft that have not already been modified to inspect the elevator front spar and, within a fixed hours limit, modify it by installing heavier-gauge angles per Embraer service bulletin SB 110-55-026. It changes maintenance obligations by setting inspection intervals and a firm modification deadline, affecting scheduling, parts and labour for those aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-emb-110-32-amdt-1-elevator-front-spar-inspection-and-modification","history":"/api/acts/ad-emb-110-32-amdt-1-elevator-front-spar-inspection-and-modification/history","analysis":"/api/acts/ad-emb-110-32-amdt-1-elevator-front-spar-inspection-and-modification/analysis","conflicts":"/api/acts/ad-emb-110-32-amdt-1-elevator-front-spar-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-emb-110-32-amdt-1-elevator-front-spar-inspection-and-modification/important-cases","documents":"/api/acts/ad-emb-110-32-amdt-1-elevator-front-spar-inspection-and-modification/documents"}}