{"id":"F2008L02515","name":"AD/ERJ-170/7 Amdt 1 - Aft Avionics Compartment Smoke Seal","slug":"ad-erj-170-7-amdt-1-aft-avionics-compartment-smoke-seal","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74480,"registerId":"commonwealth-F2008L02515-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Embraer ERJ-170 Series Aeroplanes","sectionType":"division","heading":"Embraer ERJ-170 Series Aeroplanes","content":"### Embraer ERJ-170 Series Aeroplanes\n\n| AD/ERJ-170/7 Amdt 1 | Aft Avionics Compartment Smoke Seal | 8/2008 |\n| ------------------- | ----------------------------------- | ------ |\n\n| Applicability: | Model ERJ 170-100 LR, ERJ 170-100 STD, and ERJ 170-100 SU aircraft, as identified in Embraer Service Bulletins 170-21-0017 Revision 01 and 170-21-0018 Revision 03, or later ANAC approved revisions.                                                                                                                                                                                                                                    |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the requirements of ANAC AD 2006-05-04R1 Amdt39-1233.Note: Accomplishment of Part II of Requirement document is considered terminating action for the Part I Requirement document inspection requirement.                                                                                                                                                                                                      |\n| Compliance:    | For Part I of the Requirement document: Unless the initial Part I inspection is already accomplished, within 600 flight hours after 10 May 2007. Inspect thereafter at intervals not to exceed 1,200 flight hours until accomplishment of Part II.For Part II of the Requirement document: Within 6,000 flight hours after10 May 2007, unless already accomplished.The compliance times remain unchanged by this issue of the Directive. |\n|                | This Amendment becomes effective on 31 July 2008.                                                                                                                                                                                                                                                                                                                                                                                        |\n| Background:    | Reports were received of damage to the smoke seal installed in the aft electronics compartment. Such damage could result in smoke or other hazardous gas or vapour penetration into the passenger cabin.Amendment 1 is issued in response to a revision of the related ANAC AD, which was issued to clarify applicability.                                                                                                               |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n12 June 2008","sortOrder":0},{"sectionNumber":"AD/ERJ-170/7 Amdt 1","sectionType":"part","heading":"AD/ERJ-170/7 Amdt 1","content":"## AD/ERJ-170/7 Amdt 1","sortOrder":1},{"sectionNumber":"Aft Avionics Compartment Smoke Seal","sectionType":"part","heading":"Aft Avionics Compartment Smoke Seal","content":"## Aft Avionics Compartment Smoke Seal","sortOrder":2},{"sectionNumber":"8/2008","sectionType":"part","heading":"8/2008","content":"## 8/2008","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope. It is a technical update to clarify aircraft applicability and align with the Brazilian authority's revised directive, without expanding the safety issue addressed or adding new requirements."},"complexity_factors":["Short, single-purpose directive with clear applicability and requirements","Only 2 defined compliance pathways (Part I inspection and Part II modification)","Single cross-reference to Brazilian authority document (ANAC AD 2006-05-04R1)","Conditional logic limited to 'unless already accomplished' clauses","No nested exceptions or complex definitional sections"],"plain_english_summary":"This CASA Airworthiness Directive applies to Embraer ERJ‑170 (170‑100 LR/STD/SU) aircraft and requires operators to inspect and repair the smoke seal in the rear electronics compartment and eventually install a permanent modification. It’s mandatory because a damaged seal can allow smoke or toxic fumes from the avionics bay into the cabin. Amendment 1 clarifies affected models and aligns the AD with Brazilian ANAC; compliance deadlines from the original AD are unchanged."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The Amendment clarifies applicability of the related ANAC AD but does not change compliance times or add new technical requirements. The Directive still requires Part I inspections (recurring) and Part II terminating action within the same flight-hour limits referenced to 10 May 2007."},"complexity_factors":["Dependency on external documents: mandates compliance with ANAC AD 2006-05-04R1 Amdt39-1233 and specific Embraer Service Bulletins (170-21-0017 Rev 01 and 170-21-0018 Rev 03) or later ANAC-approved revisions, requiring cross-referencing.","Two-part requirement structure: Part I (recurring inspections) and Part II (terminating modification) with Part II ending Part I obligations—operators must track status and progression.","Multiple, date-tied compliance intervals: initial Part I within 600 flight hours after 10 May 2007, recurring at ≤1,200 flight hours until Part II; Part II within 6,000 flight hours after 10 May 2007—creates staggered scheduling and recordkeeping burdens.","Applicability by service-bulletin identification: affected fleet is defined by service-bulletin lists rather than model name alone, increasing the need to check serial-number/alert lists.","Operational and cost burden falls on operators: inspections, possible repairs or seal replacement, and recordkeeping are operator responsibilities under the Directive.","Amendment role limited to clarification: text states compliance times remain unchanged, so the amendment mainly changes wording/coverage rather than technical requirements."],"plain_english_summary":"This airworthiness directive requires operators of specific Embraer ERJ-170-100 variants to inspect—and if needed, modify—the aft avionics compartment smoke seal following the referenced ANAC AD and Embraer service bulletins. It sets recurring inspection intervals and a later, one-time modification that ends the inspection requirement. It applies to aircraft identified in the listed service bulletins and matters because a damaged seal can permit smoke or hazardous vapour to enter the passenger cabin."},"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-170-7-amdt-1-aft-avionics-compartment-smoke-seal","history":"/api/acts/ad-erj-170-7-amdt-1-aft-avionics-compartment-smoke-seal/history","analysis":"/api/acts/ad-erj-170-7-amdt-1-aft-avionics-compartment-smoke-seal/analysis","conflicts":"/api/acts/ad-erj-170-7-amdt-1-aft-avionics-compartment-smoke-seal/conflicts","importantCases":"/api/acts/ad-erj-170-7-amdt-1-aft-avionics-compartment-smoke-seal/important-cases","documents":"/api/acts/ad-erj-170-7-amdt-1-aft-avionics-compartment-smoke-seal/documents"}}