{"id":"F2006L00432","name":"AD/DO 328/44 - Aileron Elevator and Rudder Trim Tabs","slug":"ad-do-328-44-aileron-elevator-and-rudder-trim-tabs","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":117109,"registerId":"commonwealth-F2006L00432-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Dornier 328 Series Aeroplanes","sectionType":"division","heading":"Dornier 328 Series Aeroplanes","content":"### Dornier 328 Series Aeroplanes\n\n| AD/DO 328/44 | Aileron Elevator and Rudder Trim Tabs | 3/2006 |\n| ------------ | ------------------------------------- | ------ |\n\n| Applicability: | Model 328-100 aircraft, serial numbers 3005 through 3119.                                                                                                                                                                       |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with LBA AD 2002-126/2.Note: Dornier 328 Service Bulletins No. SB-328-55-368 Revision 1, No.SB-328-57-350 Revision 2, and No. SB-328-55-422, refer.                                                        |\n| Compliance:    | Before 31 March 2006, unless already accomplished.                                                                                                                                                                              |\n|                | This Airworthiness Directive becomes effective on 16 March 2006.                                                                                                                                                                |\n| Background:    | The trim tab hinge fittings attachment screw countersinks were found to have been incorrectly manufactured, and the torque values for the elevator trim tab and rudder trim and spring tab attachment screws have been revised. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n30 January 2006","sortOrder":0},{"sectionNumber":"AD/DO 328/44","sectionType":"part","heading":"AD/DO 328/44","content":"## AD/DO 328/44","sortOrder":1},{"sectionNumber":"Aileron Elevator and Rudder Trim Tabs","sectionType":"part","heading":"Aileron Elevator and Rudder Trim Tabs","content":"## Aileron Elevator and Rudder Trim Tabs","sortOrder":2},{"sectionNumber":"3/2006","sectionType":"part","heading":"3/2006","content":"## 3/2006","sortOrder":3}],"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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive addressing a specific manufacturing defect in a specific aircraft model. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined applicability criterion (specific serial number range)","Single compliance action (follow the German AD and service bulletins)","No nested exceptions or conditional logic","No cross-references to other Australian legislation — only references to external technical documents (German AD and manufacturer service bulletins)","Clear, fixed deadline with simple 'unless already accomplished' exception"],"plain_english_summary":"This AD requires owners/operators of Dornier 328-100 aeroplanes (S/N 3005–3119) to inspect and correct a manufacturing defect in trim tab hinge fittings (aileron, elevator, rudder) and apply updated screw torque per German LBA AD 2002‑126/2 and related Dornier service bulletins. Action must be completed before 31 March 2006. The fix prevents possible trim tab detachment or failure in flight, reducing risk of loss of control."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains targeted to the same aircraft group and requires compliance with the referenced LBA AD and Dornier service bulletins. The directive does not broaden applicability or add new regulatory powers beyond mandating the corrective maintenance and revised torque settings for the listed serial numbers (Applicability; Requirement; Background; Compliance)."},"complexity_factors":["Narrow applicability: only Model 328‑100, serial numbers 3005–3119 (Applicability) reduces scale but requires serial‑number checks.","Cross‑references to external mandatory documents: requires action “in accordance with LBA AD 2002‑126/2” and three Dornier service bulletins (Requirement) — operators must obtain and follow those documents.","Technical maintenance task: addresses incorrectly manufactured countersinks and revised torque values for trim tab and spring tab screws (Background) — needs qualified maintenance staff and calibrated tooling.","Short, fixed compliance window: effective 16 March 2006 with compliance by 31 March 2006 (Compliance) creates scheduling pressure for affected operators and maintenance providers.","Enforcement and administrative oversight: issued/delegated by CASA (signature block) — compliance subject to regulator verification.","Potential parts/repair costs and operational downtime: inspections/repairs impose direct costs on operators and require aircraft out‑of‑service time."],"plain_english_summary":"This Airworthiness Directive requires operators of Dornier 328‑100 aeroplanes (serial numbers 3005–3119) to carry out maintenance specified in LBA AD 2002‑126/2 and referenced Dornier service bulletins to fix incorrectly manufactured countersinks on trim‑tab hinge screws and to apply revised torque values for elevator, rudder and spring‑tab attachment screws. Compliance is required before 31 March 2006 (directive effective 16 March 2006). Operators pay for inspections and repairs; maintenance organisations perform the work; CASA enforces compliance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-do-328-44-aileron-elevator-and-rudder-trim-tabs","history":"/api/acts/ad-do-328-44-aileron-elevator-and-rudder-trim-tabs/history","analysis":"/api/acts/ad-do-328-44-aileron-elevator-and-rudder-trim-tabs/analysis","conflicts":"/api/acts/ad-do-328-44-aileron-elevator-and-rudder-trim-tabs/conflicts","importantCases":"/api/acts/ad-do-328-44-aileron-elevator-and-rudder-trim-tabs/important-cases","documents":"/api/acts/ad-do-328-44-aileron-elevator-and-rudder-trim-tabs/documents"}}