{"id":"F2006B09522","name":"AD/EMB-120/5 Amdt 1 - Escape Hatch Marking","slug":"ad-emb-120-5-amdt-1-escape-hatch-marking","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54111,"registerId":"commonwealth-F2006B09522-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/EMB-120/5 Amdt 1 - Escape Hatch Marking","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nEmbraer EMB-120 (Brasilia) Series Aeroplanes\n\nAD/EMB-120/5\n\nAmdt 1\n\n  \nEscape Hatch Marking 14/98\n\nApplicability: Model EMB 120 series aircraft having serial numbers 120003 through 120310, and 120312 through 120319.\n\nRequirement: Replace the placards and opening handles containing instructions for opening the type III escape hatches with either:\n\n    New “betalight” placards in accordance with Brazil CTA AD 90-11-02R2; or\n\n    2. Phosphorescent placards in accordance with Embraer Service Bulletin 120-25- 0220.\n\nNote: Brazil CTA AD 90-11-02R2 Amdt 39-840 refers.\n\nCompliance: 1. Unless already accomplished, before 30 June 1999, and thereafter every 7 years.\n\n2. Unless already accomplished, before 30 June 1999. This Amendment becomes effective on 31 December 1998.\n\nBackground: The phosphorescent paint used on the placards and handles of the escape hatches has been found in some cases to be below the required level of brightness. In the case of an emergency evacuation, this condition could affect passenger safety.\n\nAmendment 1 is issued in response to a revision of the related CTA AD which requires replacement of the “betalight” placards after 7 years of operation, in compliance with MRB Report, Section 3, Chapter 25, Task 25-21.\n\nThe original issue of this Airworthiness Directive became effective on 3 February 1992.","sortOrder":0}],"analysis":{"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 1 added a recurring replacement interval (every 7 years) and aligned the directive with the revised Brazil CTA AD and MRB guidance (Background/Requirement). The affected aircraft serial-number scope was not expanded in this text, but the amendment changes ongoing obligations by creating periodic replacement requirements and specifying acceptable replacement standards. Effective date was set 31 December 1998 with initial compliance by 30 June 1999 (Compliance)."},"complexity_factors":["Limited applicability to specific serial-numbered EMB-120 aircraft (Applicability) — reduces scope but requires serial checks.","Two alternative compliance routes: Brazil CTA 'betalight' or Embraer Service Bulletin phosphorescent placards (Requirement) — operators choose method.","Recurring maintenance interval: replacement every 7 years (Compliance) — creates ongoing compliance scheduling and lifecycle cost.","Cross-references to foreign airworthiness directive and MRB report (Note/Background) — requires operators/maintenance organisations to follow external documents.","Fixed compliance deadline and effective date (Compliance) — imposes immediate scheduling for initial compliance.","Operational logistics: inspection of brightness levels, removal/installation of placards and handles, and record-keeping (Background/Requirement) — modest technical work and maintenance downtime."],"plain_english_summary":"Requires operators of specified Embraer EMB-120 serial-numbered aeroplanes to replace escape-hatch instruction placards and opening handles with either Brazil CTA “betalight” placards or phosphorescent placards meeting an Embraer Service Bulletin. It addresses a safety defect: some phosphorescent markings were found dimmer than required and could impede evacuation. Operators pay for and schedule the replacements; the AD set a compliance deadline of 30 June 1999 and a recurring replacement every seven years, enforced by CASA."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, technical amendment to an existing Airworthiness Directive. It maintains the original scope (escape hatch marking safety) and merely updates the maintenance requirements to match revised Brazilian aviation standards. The addition of a 7-year replacement cycle for betalight placards is a refinement, not an expansion of scope."},"complexity_factors":["Very short document (under 300 words)","Only 3 defined elements: applicability (serial numbers), two technical compliance options, and a single recurring maintenance interval (7 years)","No nested conditional logic or cross-references to other legislation beyond a single reference to a Brazilian aviation authority directive","Single purpose: mandate replacement of specific aircraft components","Clear, unambiguous compliance dates and actions"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Embraer EMB-120 “Brasilia” (serials 120003–120310 and 120312–120319) to replace emergency-exit markings with either self-luminous betalight placards or improved phosphorescent placards (betalights must be renewed every 7 years). Changes were required by 30 June 1999. The aim is to ensure exit markings remain visible in a dark or smoky cabin so passengers can locate and operate exits during an evacuation."}},"importantCases":[],"_links":{"self":"/api/acts/ad-emb-120-5-amdt-1-escape-hatch-marking","history":"/api/acts/ad-emb-120-5-amdt-1-escape-hatch-marking/history","analysis":"/api/acts/ad-emb-120-5-amdt-1-escape-hatch-marking/analysis","conflicts":"/api/acts/ad-emb-120-5-amdt-1-escape-hatch-marking/conflicts","importantCases":"/api/acts/ad-emb-120-5-amdt-1-escape-hatch-marking/important-cases","documents":"/api/acts/ad-emb-120-5-amdt-1-escape-hatch-marking/documents"}}