{"id":"F2008L04676","name":"AD/DO 228/15 - Aileron Trim Actuator and Rod Spring Lever Attachment Bracket","slug":"ad-do-228-15-aileron-trim-actuator-and-rod-spring-lever-attachment-bracket","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":121039,"registerId":"commonwealth-F2008L04676-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Dornier 228 Series Aeroplanes","sectionType":"division","heading":"Dornier 228 Series Aeroplanes","content":"### Dornier 228 Series Aeroplanes\n\n| AD/DO 228/15 | Aileron Trim Actuator and RodSpring Lever Attachment Bracket | 2/2009 DM |\n| ------------ | ------------------------------------------------------------ | --------- |\n\n| Applicability: | Model 228-100, -101, -200, -201, -202, and -212 aircraft, all serial numbers.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | 1. Accomplish inspection for “unequal aileron steering wheel force” in accordance with paragraphs A(1) through A(3) of the Accomplishment Instructions of RUAG Aerospace Service Bulletin (SB) No. SB-228-275 original issue, or later EASA approved revision.If a defect is evident or suspected, before further flight, modify the attachment bracket riveting in accordance with paragraph B of the Accomplishment Instructions of SB No. SB-228-275 original issue, or later EASA approved revision.2. Modify the attachment bracket riveting in accordance with paragraph B of the Accomplishment Instructions of SB No. SB-228-275 original issue, or later EASA approved revision.Note: EASA AD 2008-0217 refers. |\n| Compliance:    | 1. Within 10 flight hours after 24 December 2008.2. Unless already accomplished, within 300 flight hours after 24 December 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |\n|                | This Airworthiness Directive becomes effective on 24 December 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |\n| Background:    | Reports were received of loose rivets on the aileron trim actuator and rod spring lever attachment bracket between frame 18 and 19 left hand. This condition, unless detected and corrected, could lead to separation of the attachment bracket which could result in loss of aileron trim and loss of artificial force feedback; and consequent reduced controllability of the aircraft.                                                                                                                                                                                                                                                                                                                                |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n12 December 2008","sortOrder":0},{"sectionNumber":"AD/DO 228/15","sectionType":"part","heading":"AD/DO 228/15","content":"## AD/DO 228/15","sortOrder":1},{"sectionNumber":"Aileron Trim Actuator and RodSpring Leve","sectionType":"part","heading":"Aileron Trim Actuator and RodSpring Lever Attachment Bracket","content":"## Aileron Trim Actuator and Rod  \nSpring Lever Attachment Bracket","sortOrder":2},{"sectionNumber":"2/2009 DM","sectionType":"part","heading":"2/2009 DM","content":"## 2/2009 DM","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive's scope, as stated, targets inspection and modification of the aileron trim actuator and rod spring lever attachment bracket on listed Dornier 228 models to prevent loose rivets and potential bracket separation. The text shows no expansion or narrowing of that original safety objective; it applies to all serial numbers of the listed models and references SB-228-275/EASA AD 2008-0217 for the required work."},"complexity_factors":["Technical, safety-critical action but limited in scope: inspection and rivet modification on a specific bracket for listed Dornier 228 models (all serial numbers).","Two-tier compliance timing: urgent inspection within 10 flight hours and a longer compliance window (300 flight hours) for the modification, plus 'before further flight' if a defect is suspected.","Dependency on an external document: work must follow RUAG Aerospace Service Bulletin SB-228-275 or a later EASA-approved revision, requiring operators to obtain and follow that SB.","Immediate-action trigger relies on operator/maintenance judgement to detect 'defect evident or suspected', creating a compliance judgement call.","Regulatory linkage: the AD refers to EASA AD 2008-0217 and is enforced by the Civil Aviation Safety Authority, so cross-jurisdictional document alignment is required.","Applies to multiple model variants and all serial numbers, increasing the number of affected operators but not the technical variability of the task."],"plain_english_summary":"This Airworthiness Directive requires operators of Dornier 228-100/ -101/ -200/ -201/ -202/ -212 aircraft to inspect and, if necessary, re-rivet the aileron trim actuator and rod spring lever attachment bracket following RUAG SB-228-275 (or a later EASA-approved revision). Operators bear the cost of inspection and repair; the Civil Aviation Safety Authority enforces the AD. Inspections must be done within 10 flight hours and the rivet modification within 300 flight hours unless a defect requires repair before further flight. The aim is to prevent bracket separation that could cause loss of aileron trim and reduced controllability."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope: addressing a specific mechanical defect in a specific aircraft type. There is no evidence of scope creep — it targets exactly the safety issue identified in the background (loose rivets on the aileron trim actuator bracket) with precisely tailored requirements."},"complexity_factors":["Very short document (approximately 300 words of substantive content)","Only 2 main requirements with clear, sequential deadlines","Single defined applicability (specific aircraft models by serial number)","No nested exceptions or conditional logic — requirements apply uniformly to all affected aircraft","Cross-reference to only one external technical document (RUAG Aerospace Service Bulletin SB-228-275) and one related European regulation (EASA AD 2008-0217)","Plain language background section explaining the safety rationale","No interpretation section with defined terms — uses standard aviation terminology"],"plain_english_summary":"This AD requires owners/operators/maintainers of Dornier 228 (models 100–212) in Australia to address a defect in the aileron trim actuator attachment bracket: loose rivets can allow the bracket to fail, causing loss of aileron trim, loss of artificial force feedback on the control wheel, and reduced controllability.\n\nWithin 10 flight hours after 24 Dec 2008 inspect for unequal steering‑wheel force and rectify before flight if found, and within 300 flight hours replace the bracket rivets per the manufacturer’s service bulletin."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-do-228-15-aileron-trim-actuator-and-rod-spring-lever-attachment-bracket","history":"/api/acts/ad-do-228-15-aileron-trim-actuator-and-rod-spring-lever-attachment-bracket/history","analysis":"/api/acts/ad-do-228-15-aileron-trim-actuator-and-rod-spring-lever-attachment-bracket/analysis","conflicts":"/api/acts/ad-do-228-15-aileron-trim-actuator-and-rod-spring-lever-attachment-bracket/conflicts","importantCases":"/api/acts/ad-do-228-15-aileron-trim-actuator-and-rod-spring-lever-attachment-bracket/important-cases","documents":"/api/acts/ad-do-228-15-aileron-trim-actuator-and-rod-spring-lever-attachment-bracket/documents"}}