{"id":"F2006B01828","name":"AD/A109/42 - Passenger Compartment Sliding Door","slug":"ad-a109-42-passenger-compartment-sliding-door","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41026,"registerId":"commonwealth-F2006B01828-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nAgusta A109 Series Helicopters","sortOrder":0},{"sectionNumber":"AD/A109/42 Passenger Compartment Sliding","sectionType":"part","heading":"AD/A109/42 Passenger Compartment Sliding Door 6/2003","content":"# AD/A109/42 Passenger Compartment Sliding Door 6/2003\n\nApplicability: Model A109E helicopters, serial numbers up to and including 11099; with passenger compartment sliding doors installed.\n\nRequirement: Action in accordance with Agusta Mandatory Service Bulletin 109EP-16, dated 21 December 2000.\n\nNote: ENAC AD 2001-019 refers.\n\nCompliance: Before 30 June 2003, unless already accomplished.\n\nThis Airworthiness Directive becomes effective on 12 June 2003.\n\nBackground: Reports were received of in- flight opening of passenger compartment sliding doors on several A109E helicopters. Investigation revealed the internal handle locking system was prone to accidental actuation. This Directive requires installation of an improved sliding door latching system.\n\n![](image.002.jpeg)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 17 April 2003\n\n![](image.001.png)","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope aligns with the directive's original intent in the source text: it applies only to Model A109E helicopters up to serial number 11099 with passenger sliding doors and requires installation of the improved latching system per Agusta Mandatory Service Bulletin 109EP-16 by 30 June 2003; no expansion or narrowing of scope is indicated."},"complexity_factors":["Narrow applicability to A109E helicopters with passenger sliding doors and serial numbers up to 11099 (Applicability)","Single technical remedy required: installation per Agusta Mandatory Service Bulletin 109EP-16 (Requirement) — requires technical work by maintenance organisations","Firm compliance deadline of 30 June 2003 (Compliance) — creates scheduling and resource pressure for operators","Safety-critical nature of the fix (Background) — elevated consequences for non-compliance but straightforward corrective action","External cross-reference to ENAC AD 2001-019 (Note) — may require cross-jurisdictional coordination or reference checks","Issued under CASA delegated authority (preamble and signature) — limited administrative discretion in this instrument"],"plain_english_summary":"Requires operators of Agusta A109E helicopters (serial numbers up to 11099) with passenger sliding doors to install an improved sliding-door latching system in accordance with Agusta Mandatory Service Bulletin 109EP-16. CASA issued the directive after reports of in-flight openings caused by accidental actuation of the internal handle; operators/owners must complete the mandated modification by 30 June 2003 at their own cost to address the unsafe condition."},"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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive addressing a specific safety defect in a specific aircraft model. It remains tightly scoped to its original purpose: correcting an unsafe door latching condition on A109E helicopters."},"complexity_factors":["Very short document (under 300 words)","Only 3 operative sections: Applicability, Requirement, and Compliance","Single cross-reference to an external technical document (Agusta Mandatory Service Bulletin)","No defined terms section","Simple conditional logic: applies to specific serial numbers with specific equipment","Single compliance deadline with one exception clause ('unless already accomplished')","No nested exceptions or complex procedural requirements"],"plain_english_summary":"CASA has ordered owners/operators of Agusta A109E helicopters fitted with passenger sliding doors (serials up to 11099) to install an improved door locking/latching system per Agusta Mandatory Service Bulletin 109EP-16. Required by 30 June 2003 unless already done, the directive responds to in‑flight door openings from easily triggered internal handles and prevents potential injury, aircraft damage, or loss of control."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a109-42-passenger-compartment-sliding-door","history":"/api/acts/ad-a109-42-passenger-compartment-sliding-door/history","analysis":"/api/acts/ad-a109-42-passenger-compartment-sliding-door/analysis","conflicts":"/api/acts/ad-a109-42-passenger-compartment-sliding-door/conflicts","importantCases":"/api/acts/ad-a109-42-passenger-compartment-sliding-door/important-cases","documents":"/api/acts/ad-a109-42-passenger-compartment-sliding-door/documents"}}