{"id":"F2006L00429","name":"AD/DO 328/47 - Roll-Spoiler Actuator Lockplate","slug":"ad-do-328-47-roll-spoiler-actuator-lockplate","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":117103,"registerId":"commonwealth-F2006L00429-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 328/47 | Roll-Spoiler Actuator Lockplate | 3/2006 |\n| ------------ | ------------------------------- | ------ |\n\n| Applicability: | Model 328-100 aircraft, serial numbers 3005 through 3095.                                                                                                                                                                                                                                         |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with LBA AD 1998-358.Note: Dornier 328 Service Bulletin No. SB-328-27-263.                                                                                                                                                                                                   |\n| Compliance:    | Before 31 March 2006, unless already accomplished.                                                                                                                                                                                                                                                |\n|                | This Airworthiness Directive becomes effective on 16 March 2006.                                                                                                                                                                                                                                  |\n| Background:    | The manufacturer was informed of an incorrect installation of the roll-spoiler actuator lockplates. The aircraft maintenance manual did not reflect the correct installation. An incorrectly installed lockplate could lead to deformation of the fork, which could result in a fatigue fracture. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n30 January 2006","sortOrder":0},{"sectionNumber":"AD/DO 328/47","sectionType":"part","heading":"AD/DO 328/47","content":"## AD/DO 328/47","sortOrder":1},{"sectionNumber":"Roll-Spoiler Actuator Lockplate","sectionType":"part","heading":"Roll-Spoiler Actuator Lockplate","content":"## Roll-Spoiler Actuator Lockplate","sortOrder":2},{"sectionNumber":"3/2006","sectionType":"part","heading":"3/2006","content":"## 3/2006","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 instrument enforces corrective action already specified in LBA AD 1998-358 for a defined serial-number range and references Dornier Service Bulletin SB-328-27-263. It does not extend applicability beyond the listed aircraft or add measures beyond the referenced documents."},"complexity_factors":["Narrow applicability limited to Model 328-100 serial numbers 3005–3095 (Applicability).","Mandates compliance with external airworthiness directive LBA AD 1998-358 and a manufacturer Service Bulletin SB-328-27-263 (Requirement) — reliance on external documents raises cross-reference complexity.","Fixed, short compliance timeline with an effective date and deadline (Compliance): administrative scheduling and logistics pressure for operators.","Technical corrective work (Background): inspection and possible repair of roll-spoiler actuator lockplate and fork deformation requires qualified maintenance facilities and parts.","Regulatory issuance by CASA delegate (signature/date): formal regulatory force with limited discretion in this instrument."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Dornier 328‑100 aircraft (serials 3005–3095) to carry out the corrective actions set out in LBA AD 1998‑358 and Dornier Service Bulletin SB‑328‑27‑263 to correct incorrectly installed roll‑spoiler actuator lockplates.\n\nCASA (via its delegate) set an effective date and a compliance deadline (effective 16 March 2006; comply by 31 March 2006); operators bear inspection and maintenance costs because the aircraft maintenance manual did not reflect the correct installation that can cause fork deformation and fatigue fracture."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard single-issue Airworthiness Directive addressing a specific mechanical defect. It has not expanded beyond its original purpose of mandating a safety fix for the roll-spoiler actuator lockplate installation."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined applicability criterion (specific serial number range)","Single compliance action with reference to external technical documents","No nested conditions, exceptions, or cross-references to other legislation","Straightforward cause-and-effect safety rationale"],"plain_english_summary":"This AD orders operators of 91 Dornier 328-100s (serials 3005–3095) to inspect and correct roll‑spoiler actuator lockplate installations after the manufacturer found incorrect maintenance instructions. If installed wrong the fork can deform and suffer fatigue fracture, risking spoiler control. Compliance follows LBA AD 1998‑358 and Dornier SB‑328‑27‑263, to be done before 31 March 2006."}},"importantCases":[],"_links":{"self":"/api/acts/ad-do-328-47-roll-spoiler-actuator-lockplate","history":"/api/acts/ad-do-328-47-roll-spoiler-actuator-lockplate/history","analysis":"/api/acts/ad-do-328-47-roll-spoiler-actuator-lockplate/analysis","conflicts":"/api/acts/ad-do-328-47-roll-spoiler-actuator-lockplate/conflicts","importantCases":"/api/acts/ad-do-328-47-roll-spoiler-actuator-lockplate/important-cases","documents":"/api/acts/ad-do-328-47-roll-spoiler-actuator-lockplate/documents"}}