{"id":"F2009L01737","name":"AD/SWSA226/14 - Aileron Control System - Modification - CANCELLED","slug":"ad-swsa226-14-aileron-control-system-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78622,"registerId":"commonwealth-F2009L01737-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Fairchild (Swearingen) SA226 and SA227 S","sectionType":"division","heading":"Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes","content":"### Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes\n\n| AD/SWSA226/14 | Aileron Control System - Modification | 6/2009 |\n| ------------- | ------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                               |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 4 June 2009.                                                                                                                                                                                                                                                                                     |\n| Background:  | This AD, raised in 1973 against Swearingen Service Bulletin (SB) 27-10-3044, required a modification to correct the possibility of aileron cable fouling. Compliance was required within 100 hours TIS after 31 December 1973.As all affected aircraft would have been modified long ago, this AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n24 April 2009","sortOrder":0},{"sectionNumber":"AD/SWSA226/14","sectionType":"part","heading":"AD/SWSA226/14","content":"## AD/SWSA226/14","sortOrder":1},{"sectionNumber":"Aileron Control System - Modification","sectionType":"part","heading":"Aileron Control System - Modification","content":"## Aileron Control System - Modification","sortOrder":2},{"sectionNumber":"6/2009","sectionType":"part","heading":"6/2009","content":"## 6/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2213},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument maintains a narrow, specific scope limited to the cancellation of a previous Airworthiness Directive. It does not expand regulatory reach or introduce new requirements beyond the original intent of removing obsolete safety mandates."},"complexity_factors":["Extremely short document (under 200 words)","No defined terms, interpretation section, or legislative machinery","Single operative provision with no conditions or exceptions","No cross-references to other legislation (only a historical reference to a 1973 Service Bulletin)","Straightforward declarative effect (cancellation)"],"plain_english_summary":"**What this is:** This document cancels an old aircraft safety rule (called an Airworthiness Directive) that dated back to 1973.\n\n**Who it affects:** Owners and operators of Fairchild (Swearingen) SA226 and SA227 series aircraft — these are small twin-engine turboprop aeroplanes.\n\n**What the old rule required:** The original 1973 directive required a mechanical modification to the aileron control system. This is the network of cables that move the wing flaps (the ailerons) to make the plane turn. The fix prevented the cables from catching or rubbing against other parts — known as \"cable fouling.\" Operators had to complete the modification within 100 flight hours after 31 December 1973.\n\n**Why it is being cancelled:** Since every affected aircraft would have been modified decades ago, the rule is now obsolete. This document officially removes the requirement as of 4 June 2009, cleaning up unnecessary paperwork for aircraft operators."}},"importantCases":[],"_links":{"self":"/api/acts/ad-swsa226-14-aileron-control-system-modification-cancelled","history":"/api/acts/ad-swsa226-14-aileron-control-system-modification-cancelled/history","analysis":"/api/acts/ad-swsa226-14-aileron-control-system-modification-cancelled/analysis","conflicts":"/api/acts/ad-swsa226-14-aileron-control-system-modification-cancelled/conflicts","importantCases":"/api/acts/ad-swsa226-14-aileron-control-system-modification-cancelled/important-cases","documents":"/api/acts/ad-swsa226-14-aileron-control-system-modification-cancelled/documents"}}