{"id":"F2007L02142","name":"AD/DHC-8/130 - Forward Baggage Translating Door Spring Assembly Bracket","slug":"ad-dhc-8-130-forward-baggage-translating-door-spring-assembly-bracket","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":67317,"registerId":"commonwealth-F2007L02142-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Bombardier (Boeing Canada/De Havilland) ","sectionType":"division","heading":"Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes","content":"### Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes\n\n| AD/DHC-8/130 | Forward Baggage Translating DoorSpring Assembly Bracket | 8/2007 |\n| ------------ | ------------------------------------------------------- | ------ |\n\n| Applicability: | Models DHC-8-400, DHC-8-401, and DHC-8-402, with serial number 4001, and 4003 through 4102.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the requirements of Transport Canada AD CF-2007-05.Note: Bombardier Service Bulletin 84-52-51 Revision A, dated 6 September 2006, or later Transport Canada approved revision, refers.                                                                                                                                                                                                                                                                                                                                                                                                                                            |\n| Compliance:    | Within 1,000 flight hours after 2 August 2007, unless already accomplished.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |\n|                | This Airworthiness Directive becomes effective on 2 August 2007.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |\n| Background:    | Transport Canada received a report of failure of a bracket (part number 85217732-108) of the over-centring spring assembly inside the translating door of the forward baggage compartment. Investigation concluded that an insufficient gap between the bottom eyebolt and the barrel of the spring assembly caused an increase of tension load on the bracket and resulted in subsequent failure of the bracket. Damage of the door support beam in combination with failure of a doorstop attached to any remaining undamaged support beam will degrade the structural integrity of the door, resulting in possible depressurisation or loss of the door. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n19 June 2007","sortOrder":0},{"sectionNumber":"AD/DHC-8/130","sectionType":"part","heading":"AD/DHC-8/130","content":"## AD/DHC-8/130","sortOrder":1},{"sectionNumber":"Forward Baggage Translating DoorSpring A","sectionType":"part","heading":"Forward Baggage Translating DoorSpring Assembly Bracket","content":"## Forward Baggage Translating Door  \nSpring Assembly Bracket","sortOrder":2},{"sectionNumber":"8/2007","sectionType":"part","heading":"8/2007","content":"## 8/2007","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive confines action to a particular safety defect reported on specified DHC‑8‑400 series serial numbers and requires corrective work in line with Transport Canada AD CF‑2007‑05 and Bombardier SB 84‑52‑51 Rev A. It does not expand obligations beyond addressing that identified bracket failure; scope remains aligned with the original safety concern."},"complexity_factors":["Narrow applicability: specific aircraft models and a short list of serial numbers (Applicability).","Cross-references an external regulator AD and a manufacturer service bulletin (Requirement), creating dependency on those documents.","Clear compliance deadline (1,000 flight hours from 2 Aug 2007) but no staged inspections, reducing procedural complexity (Compliance).","Technical repair/inspection task may require parts replacement and maintenance labor (implied in Requirement and Background).","Permits use of later Transport Canada–approved revisions of the service bulletin, adding minor procedural discretion."],"plain_english_summary":"This Airworthiness Directive requires operators of Bombardier DHC-8-400 series airplanes (serial numbers 4001 and 4003–4102) to inspect and, if necessary, repair or replace the forward baggage translating door spring assembly bracket in line with Transport Canada AD CF-2007-05 and Bombardier Service Bulletin 84‑52‑51 Rev A (or later). Compliance must be done within 1,000 flight hours of 2 August 2007. The rule aims to prevent bracket failure that could damage the door support beam and doorstop, risking depressurisation or loss of the door, and thus imposes maintenance time and parts costs on aircraft operators."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, targeted Airworthiness Directive addressing a specific mechanical defect in a defined aircraft population. The scope remains precisely limited to the identified safety issue with the forward baggage door bracket."},"complexity_factors":["Very short document (approximately 250 words of substantive content)","Only 3 defined models in applicability section","Single compliance requirement with clear deadline (1,000 flight hours)","No nested exceptions or conditional logic","Single cross-reference to external technical document (Transport Canada AD CF-2007-05)","Straightforward cause-and-effect explanation in background section"],"plain_english_summary":"This CASA Airworthiness Directive requires operators of certain Bombardier DHC‑8‑400 series (Q400) aircraft (serials 4001 and 4003–4102) to inspect and repair a defective bracket in the forward baggage compartment door spring mechanism. The mandatory fix, per Transport Canada AD CF‑2007‑05/Bombardier SB 84‑52‑51 Rev A within 1,000 flight hours of 2 Aug 2007, prevents possible depressurisation or in‑flight door loss."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-8-130-forward-baggage-translating-door-spring-assembly-bracket","history":"/api/acts/ad-dhc-8-130-forward-baggage-translating-door-spring-assembly-bracket/history","analysis":"/api/acts/ad-dhc-8-130-forward-baggage-translating-door-spring-assembly-bracket/analysis","conflicts":"/api/acts/ad-dhc-8-130-forward-baggage-translating-door-spring-assembly-bracket/conflicts","importantCases":"/api/acts/ad-dhc-8-130-forward-baggage-translating-door-spring-assembly-bracket/important-cases","documents":"/api/acts/ad-dhc-8-130-forward-baggage-translating-door-spring-assembly-bracket/documents"}}