{"id":"F2006B09493","name":"AD/EMB-110/52 - Rear Door Operating Mechanism","slug":"ad-emb-110-52-rear-door-operating-mechanism","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54024,"registerId":"commonwealth-F2006B09493-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/EMB-110/52 - Rear Door Operating Mechanism","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)  Embraer EMB-110 (Bandeirante) Series Aeroplanes\n\n \n\nAD/EMB-110/52 Rear Door Operating Mechanism 9/97\n\nApplicability: Model EMB-110 with serial numbers 110001 through 110085. Requirement:  Action in accordance with Embraer Service Bulletin 110-52-0044.\n\nNote: CTA AD 97-05-01 Amdt 39-773 refers.\n\n \n\nCompliance: Within 300 hours time in service or at the next B2 level inspection, whichever occurs first; after 14 August 1997.\n\n \n\nBackground: The CTA received reports of sheared rivets that attach the opening/closing mechanism to the locking rod’s arm of the rear doors of several aircraft. This failure could result in an in-flight door opening, and possible loss of the door.\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":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument, as presented, applies to the specified EMB-110 serial numbers and requires action per Embraer Service Bulletin 110-52-0044 within the stated compliance window because of reported sheared rivets on the rear door mechanism. There is no material indication in the text that the scope departs from this stated intent."},"complexity_factors":["Narrow applicability limited to specific serial numbers simplifies application (Applicability).","Mandates following an external manufacturer service bulletin rather than listing technical steps increases reliance on that document (Requirement).","Single, short compliance window tied to flight hours or a named inspection level creates a clear but time-sensitive obligation (Compliance).","Safety rationale is specific and limited to one failure mode described in the Background rather than multiple interacting systems.","No alternative means of compliance or exemptions are specified in the text provided, reducing procedural complexity but concentrating discretion in the referenced documents and the issuing authority."],"plain_english_summary":"This directive requires owners/operators of Embraer EMB-110 aircraft serials 110001–110085 to carry out the inspection/repair detailed in Embraer Service Bulletin 110-52-0044 within 300 flight hours or at the next B2 inspection (whichever is first) after 14 August 1997. It targets a reported rivet-shear failure on rear door hardware that could allow a door to open in flight; operators must fund and schedule the mandated work."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue safety directive addressing a specific mechanical defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating a door mechanism repair."},"complexity_factors":["Single, specific aircraft model and serial number range (110001-110085)","One clear compliance action (follow Embraer Service Bulletin 110-52-0044)","Simple time-based compliance trigger (300 hours OR next B2 inspection)","No defined terms section, no cross-references to other legislation beyond a single note referencing a related foreign directive","Background explanation provided in plain language","Total length: approximately 150 words of substantive content"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). Think of it like a compulsory recall notice, but for aircraft.\n\n**What it does:** It requires owners and operators of specific Embraer EMB-110 \"Bandeirante\" aircraft (serial numbers 110001 through 110085) to inspect and fix a dangerous fault in the rear door mechanism.\n\n**The problem:** The rivets holding the rear door's opening/closing mechanism to the locking rod can shear off (break). If this happens in flight, the door could open unexpectedly and potentially fall off entirely — a serious safety hazard.\n\n**What must be done:** Aircraft operators must follow the repair instructions in \"Embraer Service Bulletin 110-52-0044\" (the manufacturer's official fix-it guide).\n\n**When it must be done:** Within 300 hours of flying time, or at the next \"B2 level inspection\" (a scheduled heavy maintenance check), whichever comes first — but only after 14 August 1997.\n\n**Who it affects:** Operators of early-model Embraer EMB-110 aircraft in Australia, plus any foreign-registered aircraft of this type operating in Australian airspace.\n\n**Why it matters:** This directive prevents potential in-flight emergencies caused by door failures. Non-compliance means the aircraft cannot legally fly."}},"importantCases":[],"_links":{"self":"/api/acts/ad-emb-110-52-rear-door-operating-mechanism","history":"/api/acts/ad-emb-110-52-rear-door-operating-mechanism/history","analysis":"/api/acts/ad-emb-110-52-rear-door-operating-mechanism/analysis","conflicts":"/api/acts/ad-emb-110-52-rear-door-operating-mechanism/conflicts","importantCases":"/api/acts/ad-emb-110-52-rear-door-operating-mechanism/important-cases","documents":"/api/acts/ad-emb-110-52-rear-door-operating-mechanism/documents"}}