{"id":"F2006B03192","name":"AD/B747/30 - Off-Wing Slides Mechanical Restraints - Modification","slug":"ad-b747-30-off-wing-slides-mechanical-restraints-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42564,"registerId":"commonwealth-F2006B03192-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/30 - Off-Wing Slides Mechanical Restraints - Modification","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Boeing 747 Series Aeroplanes\n\n \n\n# AD/B747/30 Off-Wing Slides Mechanical Restraints - Modification\n\nApplicability: All models 747 equipped with B.F. Goodrich off-wing slides. Document:  1. FAA AD 80-25-03, Amendment 39-3982; or\n\n2. B.F. Goodrich SB No. 25-054. Compliance: As per Requirement Document.\n\n# 2/82\n\nBackground:  Modified shear pin mechanical restraints have greatly increased reliability of slide deployment.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue safety directive focused specifically on mechanical restraints for off-wing slides on one aircraft type. It has not expanded beyond its original narrow technical purpose."},"complexity_factors":["Extremely short document — only 4 substantive lines of regulatory text","No defined terms section; all terminology is standard aviation industry language","No conditional logic or nested exceptions","Single compliance pathway with two alternative reference documents","No cross-references to other legislation beyond the two technical documents","Straightforward applicability test (aircraft model + specific equipment manufacturer)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for aircraft.\n\n**What it does:**\nRequires owners and operators of **Boeing 747 aircraft** fitted with **B.F. Goodrich off-wing emergency slides** to install **modified mechanical restraints** (specifically, improved shear pins) on those slides.\n\n**Why it matters:**\nEmergency slides must deploy reliably during an evacuation. The original mechanical restraints were apparently prone to failure. The modified shear pins are more reliable, meaning passengers and crew are more likely to be able to escape quickly in an emergency.\n\n**Who must comply:**\nAnyone operating a Boeing 747 with these specific slides — essentially airlines and cargo operators flying these aircraft in Australian airspace or under Australian registration.\n\n**How to comply:**\nFollow the technical instructions in either:\n- **FAA AD 80-25-03** (the original US safety order), or  \n- **B.F. Goodrich Service Bulletin No. 25-054** (the manufacturer's repair instructions)\n\nThis directive dates from **February 1982** (noted as \"2/82\"), making it a historical safety requirement for older 747 models still in service at that time."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive as presented does not indicate any change in scope from its stated purpose: it applies to all Boeing 747 aeroplanes equipped with B.F. Goodrich off-wing slides and requires modification per the referenced technical documents to achieve improved reliability of slide deployment (Applicability; Document; Compliance; Background). No text in the instrument suggests an expansion or narrowing of that scope relative to the instrument’s stated objective."},"complexity_factors":["Cross-reference to external technical documents (FAA AD 80-25-03 or B.F. Goodrich SB No. 25-054) rather than containing full technical instructions (Document; Compliance).","Technical subject matter (mechanical shear-pin restraint modification) requiring qualified maintenance personnel and parts.","Limited scope but fleet-specific applicability: applies only to 747s fitted with B.F. Goodrich off-wing slides (Applicability).","Operational logistics: scheduling downtime, procuring parts, and updating maintenance records to show compliance (Compliance).","Regulatory enforcement by CASA with prescriptive compliance requirement but reliance on another authority/manufacturer for technical specifics (Applicability; Document)."],"plain_english_summary":"This AD requires Boeing 747s fitted with B.F. Goodrich off‑wing escape slides to be modified to the revised mechanical shear‑pin restraints by following either FAA AD 80‑25‑03 or B.F. Goodrich Service Bulletin No. 25‑054. It affects aircraft owners/operators (and their maintenance suppliers), who must fund and schedule the retrofit to improve slide deployment reliability."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-30-off-wing-slides-mechanical-restraints-modification","history":"/api/acts/ad-b747-30-off-wing-slides-mechanical-restraints-modification/history","analysis":"/api/acts/ad-b747-30-off-wing-slides-mechanical-restraints-modification/analysis","conflicts":"/api/acts/ad-b747-30-off-wing-slides-mechanical-restraints-modification/conflicts","importantCases":"/api/acts/ad-b747-30-off-wing-slides-mechanical-restraints-modification/important-cases","documents":"/api/acts/ad-b747-30-off-wing-slides-mechanical-restraints-modification/documents"}}