{"id":"F2006B09605","name":"AD/EXTRA/6 - Rudder Pedal Safety Control Stop","slug":"ad-extra-6-rudder-pedal-safety-control-stop","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54347,"registerId":"commonwealth-F2006B09605-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/EXTRA/6 - Rudder Pedal Safety Control Stop","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nExtra EA-300 Series Aeroplanes\n\nAD/EXTRA/6 Rudder Pedal Safety Control Stop 4/96 DM\n\nApplicability: EA-300: All serial numbers fitted with an electrically actuated rudder pedal adjustment mechanism manufactured up until November 1995,\n\nEA-300/S serial numbers 001 to 028, and EA-300/L serial numbers 001 to 015.\n\nRequirement: Action in accordance with Extra Flugzeugbau GmbH SB-300-3-95.\n\nNote: LBA AD 95-443 refers.\n\nCompliance: Prior to further flight after the effective date of this Directive; and then at the next inspection for Maintenance Release issue, or the 50 flight hour inspection, whichever occurs first; thereafter at each installation of a new rudder cable.\n\nThe effective date of this Directive is 31 January 1996.\n\nBackground: A secondary (safety) stop is fitted to protect the lower fitting of the brake system in case of rudder cable failure, and this should not be reached during normal operation. Misalignment or elongation of the rudder cables may result in pedal overtravel with damage to the stop, overload of the rudder bearing, and a subsequent inflight failure of the rudder pedal system.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a limited production run of aircraft. It has not expanded beyond its original purpose of mandating a rudder pedal safety modification."},"complexity_factors":["Single, specific aircraft type and limited serial number range","Only one substantive requirement (compliance with manufacturer service bulletin SB-300-3-95)","Clear, sequential compliance timeline with three distinct triggers (initial, next maintenance, cable replacement)","Minimal defined terms (only 'Maintenance Release' — a standard aviation term for airworthiness certification)","No nested exceptions or conditional logic","Short length (under 300 words)","Single cross-reference to German authority document (LBA AD 95-443) for background only"],"plain_english_summary":"Owners/operators of certain Extra EA-300 aerobatic aircraft (early EA-300/S 001–028, EA-300/L 001–015, and all EA‑300s with electrically adjustable rudder pedals built before Nov 1995) must install or inspect a rudder-pedal safety stop per Service Bulletin SB-300-3-95 and complete the work before next flight after 31 Jan 1996, with recurring checks. The fix prevents pedal overtravel from stretched/failed cables, which has caused in‑flight rudder pedal failures and potential control/structural damage."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope is limited to the listed EA‑300 serial numbers fitted with the specified electrically actuated rudder pedal adjustment mechanism manufactured up to November 1995. The Directive enforces corrective and recurring inspections per the manufacturer bulletin but does not broaden applicability beyond those aircraft or introduce new regulatory powers."},"complexity_factors":["Narrow, serial‑numbered applicability—only certain EA‑300/S and EA‑300/L ranges and aircraft with electrically actuated rudder pedal adjustment mechanisms (up to Nov 1995).","Mandatory reliance on an external manufacturer service bulletin (Extra Flugzeugbau SB‑300‑3‑95) for technical steps.","Multiple compliance triggers (prior to further flight, next maintenance‑release or 50‑flight‑hour inspection, and on each new rudder cable installation).","Safety‑critical mechanical diagnosis/repair (rudder cable alignment/elongation, stop integrity) requiring specialised maintenance skills and possible parts/adjustments.","Cross‑reference to an overseas airworthiness directive (LBA AD 95‑443) which may require coordination with international technical records."],"plain_english_summary":"This Directive requires owners/operators of specified Extra EA‑300 aircraft (certain EA‑300/S and EA‑300/L serials fitted with electrically actuated rudder pedal adjustment mechanisms manufactured up to November 1995) to inspect and rectify the rudder pedal secondary safety stop in accordance with Extra Flugzeugbau SB‑300‑3‑95. The check must be done before the next flight, at the next maintenance‑release or 50‑flight‑hour inspection (whichever comes first), and whenever a new rudder cable is installed. Owners/operators pay for inspections/repairs and must document compliance. The measure targets cable misalignment/elongation that can allow pedal overtravel and risk rudder‑system failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-extra-6-rudder-pedal-safety-control-stop","history":"/api/acts/ad-extra-6-rudder-pedal-safety-control-stop/history","analysis":"/api/acts/ad-extra-6-rudder-pedal-safety-control-stop/analysis","conflicts":"/api/acts/ad-extra-6-rudder-pedal-safety-control-stop/conflicts","importantCases":"/api/acts/ad-extra-6-rudder-pedal-safety-control-stop/important-cases","documents":"/api/acts/ad-extra-6-rudder-pedal-safety-control-stop/documents"}}