{"id":"F2008L04073","name":"AD/ERJ-190/17 - Internal Wing Spars and Rib Flanges","slug":"ad-erj-190-17-internal-wing-spars-and-rib-flanges","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75944,"registerId":"commonwealth-F2008L04073-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Embraer ERJ-190 Series Aeroplanes","sectionType":"division","heading":"Embraer ERJ-190 Series Aeroplanes","content":"### Embraer ERJ-190 Series Aeroplanes\n\n| AD/ERJ-190/17 | Internal Wing Spars and Rib Flanges | 12/2008 |\n| ------------- | ----------------------------------- | ------- |\n\n| Applicability: | Model ERJ 190 aircraft, serial numbers 19000002, 19000004, and 19000006 through 19000062.                                                                                            |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | Action in accordance with the requirements of ANAC AD 2008-10-03 Amdt39-1246.Note: Embraer Service Bulletin No. 190-57-0023 original issue, or later ANAC approved revision, refers. |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of20 November 2008.                                                                                          |\n|                | This Airworthiness Directive becomes effective on 20 November 2008.                                                                                                                  |\n| Background:    | The manufacturer has determined that the possibility exists of the development of cracks and deformation during assembly of the internal wing spars and rib flanges.                 |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n9 October 2008","sortOrder":0},{"sectionNumber":"AD/ERJ-190/17","sectionType":"part","heading":"AD/ERJ-190/17","content":"## AD/ERJ-190/17","sortOrder":1},{"sectionNumber":"Internal Wing Spars and Rib Flanges","sectionType":"part","heading":"Internal Wing Spars and Rib Flanges","content":"## Internal Wing Spars and Rib Flanges","sortOrder":2},{"sectionNumber":"12/2008","sectionType":"part","heading":"12/2008","content":"## 12/2008","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains focused on the listed ERJ-190 serial numbers and requires action in accordance with ANAC AD 2008-10-03 Amdt39-1246 (and referenced Embraer SB). The instrument’s text only records a revised effective date of 20 November 2008; it does not expand or narrow the set of affected aircraft or the nature of required inspections/repairs (Applicability / Compliance / Requirement)."},"complexity_factors":["Cross-reference dependency: compliance requires following an external regulator's AD (ANAC AD 2008-10-03 Amdt39-1246) and an Embraer Service Bulletin, creating dependency on those documents (Requirement).","Narrow applicability: applies only to specific serial numbers, which reduces scope but increases the need for precise aircraft identification (Applicability).","Technical inspection/repair work: concerns internal wing spars and rib flanges, a structural area requiring specialised maintenance skills and possible part replacement (Background / Requirement).","Administrative timing: revised effective date (20 November 2008) imposes a clear compliance start date and record-keeping obligation (Compliance).","Regulatory chain and delegation: CASA issued the directive referencing ANAC material, so enforcement and interpretation rest with CASA plus the content of the referenced documents (Requirement / Signature)."],"plain_english_summary":"This Airworthiness Directive requires operators of Embraer ERJ-190 aeroplanes (serial numbers 19000002, 19000004 and 19000006–19000062) to carry out inspections and any corrective action on internal wing spars and rib flanges in accordance with ANAC AD 2008-10-03 Amdt39-1246 (and Embraer Service Bulletin 190-57-0023 where referenced). CASA issued the AD with an effective date of 20 November 2008; operators bear the cost and must follow the referenced documents and update maintenance records to show compliance."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific technical defect in specific aircraft. It has not expanded beyond its original purpose of addressing wing spar cracking in the identified serial numbers."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 3 defined elements: specific aircraft serial numbers, reference to external ANAC directive, and reference to Embraer Service Bulletin","No nested conditional logic or exceptions","Single compliance pathway with clear deadline","No internal cross-references or defined terms section","Relies entirely on external technical documents for actual implementation details"],"plain_english_summary":"This AD mandates inspections and repairs on 60 specific Embraer ERJ-190s (serials 19000002, 19000004, 19000006–19000062) after discovery of cracks/deformation in internal wing spars and rib flanges from assembly. Operators and maintenance providers must follow ANAC AD 2008-10-03 and Embraer service instructions to restore wing structural integrity. Effective 20 November 2008."}},"importantCases":[],"_links":{"self":"/api/acts/ad-erj-190-17-internal-wing-spars-and-rib-flanges","history":"/api/acts/ad-erj-190-17-internal-wing-spars-and-rib-flanges/history","analysis":"/api/acts/ad-erj-190-17-internal-wing-spars-and-rib-flanges/analysis","conflicts":"/api/acts/ad-erj-190-17-internal-wing-spars-and-rib-flanges/conflicts","importantCases":"/api/acts/ad-erj-190-17-internal-wing-spars-and-rib-flanges/important-cases","documents":"/api/acts/ad-erj-190-17-internal-wing-spars-and-rib-flanges/documents"}}