{"id":"F2009L00122","name":"AD/ERJ-190/19 - MLG Locking Stay Support Bracket Assembly Bolts","slug":"ad-erj-190-19-mlg-locking-stay-support-bracket-assembly-bolts","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76544,"registerId":"commonwealth-F2009L00122-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-190/19 | MLG Locking Stay SupportBracket Assembly Bolts | 2/2009 |\n| ------------- | ---------------------------------------------- | ------ |\n\n| Applicability: | Model ERJ 190-100 STD, -100 LR, -100 IGW, -200 STD, -200 LR, and -200 IGW aircraft, equipped with main landing gear shock struts listed in Applicability Table 1 of ANAC AD 2008-11-01.                                                                                                                                                  |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the requirements of ANAC AD 2008-11-01 Amdt39-1251.Note: Embraer Alert Service Bulletin No. 190-32-A033 original issue, or later ANAC approved revision, refers.                                                                                                                                               |\n| Compliance:    | Within 200 flight hours after 12 February 2009, unless already accomplished.                                                                                                                                                                                                                                                             |\n|                | This Airworthiness Directive becomes effective on 12 February 2009.                                                                                                                                                                                                                                                                      |\n| Background:    | The manufacturer received reports of several incidents where one of the two bolts that attach the main landing gear locking stay support bracket assembly to the main fitting was found broken. The rupture of both attach bolts could result in loss of function of the locking stay, which could lead to collapse of the landing gear. |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n17 December 2008","sortOrder":0},{"sectionNumber":"AD/ERJ-190/19","sectionType":"part","heading":"AD/ERJ-190/19","content":"## AD/ERJ-190/19","sortOrder":1},{"sectionNumber":"MLG Locking Stay SupportBracket Assembly","sectionType":"part","heading":"MLG Locking Stay SupportBracket Assembly Bolts","content":"## MLG Locking Stay Support  \nBracket Assembly Bolts","sortOrder":2},{"sectionNumber":"2/2009","sectionType":"part","heading":"2/2009","content":"## 2/2009","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive addressing a specific mechanical defect in a specific aircraft type. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (under 300 words)","Only 1 substantive requirement (comply with Brazilian ANAC AD 2008-11-01)","Single compliance deadline (200 flight hours)","No defined terms section","No nested exceptions or conditional logic","Cross-reference to external technical document (Embraer Service Bulletin) rather than internal legislative complexity"],"plain_english_summary":"This CASA Airworthiness Directive mandates operators of certain Embraer ERJ‑190‑100/200 aircraft with specified main landing gear shock struts to inspect and repair bolts on the main landing gear locking stay support bracket per Embraer Alert Service Bulletin 190‑32‑A033 (or later). Action is required within 200 flight hours after 12 February 2009 if not already done. It addresses bolt failures that could lead to landing‑gear collapse and catastrophic accidents."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD adopts and enforces the corrective actions specified in ANAC AD 2008-11-01 (and the referenced Embraer service bulletin) for the same ERJ‑190 variants and listed shock‑strut configurations. It does not expand or narrow applicability beyond those referenced documents."},"complexity_factors":["Cross-reference to ANAC AD 2008-11-01 Amdt39-1251 and Embraer Alert Service Bulletin 190-32-A033 (original issue or later ANAC-approved revision) — requires applying external technical documents (Requirement).","Applicability limited to specific ERJ‑190 model variants equipped with main landing gear shock struts listed in Applicability Table 1 of ANAC AD 2008-11-01 — requires checking parts/configuration (Applicability).","Short mandated compliance window: within 200 flight hours after 12 February 2009 — creates scheduling and operational downtime pressure (Compliance).","Safety‑critical inspection and potential replacement of two attach bolts for the locking stay support bracket — technical labour, parts procurement and maintenance capability required (Background; Requirement).","Regulatory enforcement and effective date set by CASA delegate — limited administrative discretion but binding regulatory effect (Compliance; signature block)."],"plain_english_summary":"This Airworthiness Directive requires operators of specified Embraer ERJ‑190 variants fitted with certain main landing‑gear shock struts to inspect and, and if necessary, replace the two bolts that secure the main‑landing‑gear locking‑stay support bracket, following ANAC AD 2008‑11‑01 and Embraer Alert Service Bulletin 190‑32‑A033. CASA made compliance mandatory within 200 flight hours after 12 February 2009. Aircraft operators bear the inspection, repair and parts costs, must follow ANAC‑approved revisions, and will incur aircraft downtime as the principal implementation burdens."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-erj-190-19-mlg-locking-stay-support-bracket-assembly-bolts","history":"/api/acts/ad-erj-190-19-mlg-locking-stay-support-bracket-assembly-bolts/history","analysis":"/api/acts/ad-erj-190-19-mlg-locking-stay-support-bracket-assembly-bolts/analysis","conflicts":"/api/acts/ad-erj-190-19-mlg-locking-stay-support-bracket-assembly-bolts/conflicts","importantCases":"/api/acts/ad-erj-190-19-mlg-locking-stay-support-bracket-assembly-bolts/important-cases","documents":"/api/acts/ad-erj-190-19-mlg-locking-stay-support-bracket-assembly-bolts/documents"}}