{"id":"F2009L03367","name":"AD/ERJ-190/22 - Wing Stub Rear Box Vapour Barrier Assembly","slug":"ad-erj-190-22-wing-stub-rear-box-vapour-barrier-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":140943,"registerId":"commonwealth-F2009L03367-current","compilationNumber":null,"startDate":"2026-04-03","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-190/22 | Wing Stub Rear Box Vapour Barrier Assembly | 10/2009 |\n| ------------- | ------------------------------------------ | ------- |\n\n| Applicability: | Model ERJ 190-100 IGW, -100 LR, -100 STD, -200 IGW, -200 LR and -200 STD aircraft, serial numbers 19000002, 19000004, 19000006 through 19000108, 19000110 through 19000139, 19000141 through 19000158, 19000160 through 19000176, 19000178 through 19000202, 19000204 through 19000213 and 19000215.                                                                                                                                                                   |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the requirements of ANAC AD 2009-07-02 Amdt39-1275.Note: Embraer Service Bulletin No.190-57-0027 original issue, or later ANAC approved revision, refers.                                                                                                                                                                                                                                                                                    |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of24 September 2009.                                                                                                                                                                                                                                                                                                                                                                           |\n|                | This Airworthiness Directive becomes effective on 24 September 2009.                                                                                                                                                                                                                                                                                                                                                                                                   |\n| Background:    | The manufacturer has determined that there could be missing sealant on the vapour barrier assembly in the wing stub (centre section) rear box. In the event of fuel tank leakage in the area of the wing stub rear box, and an associated inadequately sealed vapour barrier assembly, the migration of flammable vapours and fluids to the middle electronic bay could occur. In the presence of an ignition source this situation could lead to an uncontained fire. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n13 August 2009","sortOrder":0},{"sectionNumber":"AD/ERJ-190/22","sectionType":"part","heading":"AD/ERJ-190/22","content":"## AD/ERJ-190/22","sortOrder":1},{"sectionNumber":"Wing Stub Rear Box Vapour Barrier Assemb","sectionType":"part","heading":"Wing Stub Rear Box Vapour Barrier Assembly","content":"## Wing Stub Rear Box Vapour Barrier Assembly","sortOrder":2},{"sectionNumber":"10/2009","sectionType":"part","heading":"10/2009","content":"## 10/2009","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"Scope aligns with the stated safety objective: enforce inspection and sealing of the wing-stub rear-box vapour barrier on the listed ERJ-190 serial numbers by mandating compliance with ANAC AD 2009-07-02 and the referenced Embraer service bulletin (Requirement). The only substantive administrative change in this instrument is a revised effective date of 24 September 2009 (Compliance)."},"complexity_factors":["Reliance on an external regulator's directive (ANAC AD 2009-07-02) and an Embraer service bulletin (Requirement): operators must obtain and follow those documents.","Narrow, serial-numbered applicability (Applicability): requires fleet-level serial-number checks to identify affected aircraft.","Administrative timing change (Compliance): a revised effective date (24 September 2009) that operators must track.","Technical inspection and repair work (Background / Requirement): physical inspection and application of sealant to the vapour barrier may require maintenance time, parts, and certified personnel.","Record-keeping and compliance evidence: operators must document actions to show they met the AD.","Potential cross-jurisdictional approval risk: text permits 'later ANAC approved revision', introducing dependency on future regulator approvals."],"plain_english_summary":"This airworthiness directive requires operators of specific Embraer ERJ‑190 serial-numbered aeroplanes to follow the actions set out in ANAC AD 2009‑07‑02 (and the referenced Embraer service bulletin) to inspect and, where necessary, seal the wing‑stub rear‑box vapour barrier assembly. It takes effect 24 September 2009. The measure responds to a manufacturer finding that missing sealant could allow fuel vapours to reach the middle electronic bay and, if ignited, produce an uncontained fire."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive addressing a specific manufacturing defect in a specific aircraft type. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (approximately 250 words)","Only 1 defined term implicitly used (Airworthiness Directive itself)","No nested conditional logic or exceptions","Single straightforward requirement: comply with external technical document (ANAC AD 2009-07-02)","Applicability clearly specified by model and serial number ranges","No cross-references to other Australian legislation","Background explanation is plain language and concise"],"plain_english_summary":"This AD mandates inspection and repair of a missing sealant on the wing vapour‑barrier assembly on certain Embraer ERJ‑190‑100/‑200 airframes (specific serial ranges). It affects owners/operators of those 2004–2009‑built jets because vapour ingress into the middle electronic bay could allow fuel vapours to reach an ignition source, risking an uncontained fire. Compliance follows ANAC AD 2009‑07‑02 and Embraer SB 190‑57‑0027, due by 24 September 2009."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-erj-190-22-wing-stub-rear-box-vapour-barrier-assembly","history":"/api/acts/ad-erj-190-22-wing-stub-rear-box-vapour-barrier-assembly/history","analysis":"/api/acts/ad-erj-190-22-wing-stub-rear-box-vapour-barrier-assembly/analysis","conflicts":"/api/acts/ad-erj-190-22-wing-stub-rear-box-vapour-barrier-assembly/conflicts","importantCases":"/api/acts/ad-erj-190-22-wing-stub-rear-box-vapour-barrier-assembly/important-cases","documents":"/api/acts/ad-erj-190-22-wing-stub-rear-box-vapour-barrier-assembly/documents"}}