{"id":"F2006B10203","name":"AD/GAF-N22/55 - Rudder Pedal Guard Brush Seals","slug":"ad-gaf-n22-55-rudder-pedal-guard-brush-seals","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55861,"registerId":"commonwealth-F2006B10203-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GAF-N22/55 - Rudder Pedal Guard Brush Seals","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  GAF N22 and N24 Series Aeroplanes\n\n \n\nAD/GAF-N22/55 Rudder Pedal Guard Brush Seals 12/89\n\nApplicability: All model N22 and N24 series.\n\nRequirement: Action in accordance with Nomad Alert Service Bulletin ANMD-53-9. Compliance:  Unless already accomplished, within 100 hours time in service after 30 November\n\n1989, or at the next scheduled inspection for issue of Maintenance Release after 30 November 1989 whichever occurs later.\n\n \n\nBackground: A report of the rudder pedal becoming jammed in the forward position has been received, which if not corrected could lead to a potential hazard.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive’s scope aligns with the original stated purpose: to address a reported rudder pedal jam by mandating corrective action for all N22 and N24 series aircraft. The AD requires compliance with Nomad Alert Service Bulletin ANMD-53-9 within the specified time window and does not expand or narrow coverage beyond the stated applicability or requirements in the source text (Applicability; Requirement; Compliance; Background)."},"complexity_factors":["Relies on an external technical document (Nomad Alert Service Bulletin ANMD-53-9) for the detailed steps to comply (Requirement)","Mandatory compliance window with an either/or timing rule (100 hours TIS after 30 Nov 1989, or next scheduled Maintenance Release inspection after that date) introduces scheduling complexity for operators (Compliance)","Applies to all N22 and N24 models, so it covers the entire fleet of those types without model-specific carve-outs (Applicability)","Addresses a safety‑critical flight control component (rudder pedal), increasing the operational importance of correct implementation (Background)"],"plain_english_summary":"This AD mandates that every owner/operator of GAF Nomad N22 and N24 aircraft must carry out the corrective work described in Nomad Alert Service Bulletin ANMD-53-9 to address a reported rudder‑pedal jam. Compliance is mandatory within 100 hours TIS after 30 Nov 1989 or at the next scheduled Maintenance‑Release inspection after that date, whichever is later.\n\nThe cost and scheduling fall to owners/operators and qualified maintenance organisations; the bulletin contains the technical instructions the AD requires."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive addressing a specific mechanical defect in specific aircraft models. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 1 defined term implicitly referenced (Maintenance Release — not defined in document but standard aviation term)","No cross-references to other legislation or regulations beyond the parent Civil Aviation Regulations 1998","Single, straightforward compliance requirement with clear deadline","No nested conditions or exceptions — simple 'unless already accomplished' carve-out only","Minimal conditional logic (just the 'whichever occurs later' timing provision)"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for specific aircraft models.\n\n**What it does:**\n- Requires owners and operators of **GAF N22 and N24 series aircraft** (known as \"Nomad\" planes) to install or check **brush seals on the rudder pedal guards**\n- The fix must follow a specific manufacturer's bulletin (Nomad Alert Service Bulletin ANMD-53-9)\n\n**Who it affects:**\n- Anyone who owns, operates, or maintains GAF N22 or N24 series aircraft\n- Maintenance engineers who issue Maintenance Releases (official documents saying an aircraft is safe to fly)\n\n**Why it matters:**\n- A safety hazard was discovered where the **rudder pedal could jam in the forward position**\n- The rudder pedals control the aircraft's direction on the ground and in flight — if stuck, the pilot cannot steer properly, creating a serious crash risk\n- The directive gives a deadline: complete the fix within **100 flight hours after 30 November 1989**, or at the next scheduled inspection after that date (whichever comes later)\n\n**In short:** If you fly or fix these particular Australian-made aircraft, you must install these brush seals by a specific deadline to prevent the rudder from jamming."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gaf-n22-55-rudder-pedal-guard-brush-seals","history":"/api/acts/ad-gaf-n22-55-rudder-pedal-guard-brush-seals/history","analysis":"/api/acts/ad-gaf-n22-55-rudder-pedal-guard-brush-seals/analysis","conflicts":"/api/acts/ad-gaf-n22-55-rudder-pedal-guard-brush-seals/conflicts","importantCases":"/api/acts/ad-gaf-n22-55-rudder-pedal-guard-brush-seals/important-cases","documents":"/api/acts/ad-gaf-n22-55-rudder-pedal-guard-brush-seals/documents"}}