{"id":"F2006B10170","name":"AD/GAF-N22/23 - Rudder Pedal Guards - Modification","slug":"ad-gaf-n22-23-rudder-pedal-guards-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55806,"registerId":"commonwealth-F2006B10170-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GAF-N22/23 - Rudder Pedal Guards - Modification","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-N22/23 Rudder Pedal Guards - Modification 9/78\n\nApplicability: All models N22, N22B, N24 and N24A not incorporating modification N290. Document:               GAF Alert SB No. ANMD-53-3.\n\nCompliance: Within 100 hours time in service after 1 August 1978.\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\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD's scope is the same as its stated content: it applies to GAF N22, N22B, N24 and N24A aeroplanes not incorporating modification N290 and mandates the modification described in GAF Alert SB No. ANMD-53-3 within 100 hours TIS after 1 August 1978. The instrument does not broaden or narrow that set of aircraft or the required action beyond what is stated in the \"Applicability\" and \"Compliance\" lines."},"complexity_factors":["Narrow applicability limited to four specific aircraft models (N22, N22B, N24, N24A). (Applicability)","Single required action (incorporate modification as per GAF Alert SB No. ANMD-53-3). (Document / title)","Short, specific compliance timeframe (within 100 hours time in service after 1 August 1978). (Compliance)","Dependence on an external technical document (service bulletin) for procedural detail increases operational reliance on that document. (Document)","Binary exemption condition (already incorporates modification N290) simplifies scope but requires record verification. (Applicability)"],"plain_english_summary":"This AD mandates installation of rudder‑pedal guards per GAF Alert SB No. ANMD‑53‑3 on GAF N22, N22B, N24 and N24A aeroplanes that do not already have modification N290. Affected owners/operators must have the modification done within 100 hours time‑in‑service after 1 August 1978; they bear the cost and must use qualified maintenance to follow the service bulletin."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive from 1978 with a narrow, specific scope (rudder pedal guards on four specific aircraft models). There is no evidence of scope creep; it addresses exactly what it set out to address."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 4 defined applicability criteria (aircraft models plus modification status)","Single compliance requirement with clear deadline","No cross-references to other legislation beyond the enabling Civil Aviation Regulations 1998","No conditional logic, exceptions, or nested provisions","Single source document referenced (GAF Alert SB No. ANMD-53-3)"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:** It requires owners and operators of specific GAF aircraft (the N22, N22B, N24, and N24A models) to install **rudder pedal guards** — physical barriers that prevent the rudder pedals (foot controls that steer the plane on the ground) from being accidentally bumped or interfered with.\n\n**Who must comply:** Anyone operating these specific GAF aircraft models that have **not** already been modified under \"Modification N290\".\n\n**The deadline:** The modification had to be completed within **100 hours of flying time** after 1 August 1978.\n\n**Why it matters:** Rudder pedal interference can cause loss of directional control during critical phases like takeoff or landing. This directive addresses a known safety risk identified in GAF Alert Service Bulletin ANMD-53-3.\n\n**Key point:** This is a **retrospective safety mandate** — it applies to existing aircraft in service, not just new manufacturing."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gaf-n22-23-rudder-pedal-guards-modification","history":"/api/acts/ad-gaf-n22-23-rudder-pedal-guards-modification/history","analysis":"/api/acts/ad-gaf-n22-23-rudder-pedal-guards-modification/analysis","conflicts":"/api/acts/ad-gaf-n22-23-rudder-pedal-guards-modification/conflicts","importantCases":"/api/acts/ad-gaf-n22-23-rudder-pedal-guards-modification/important-cases","documents":"/api/acts/ad-gaf-n22-23-rudder-pedal-guards-modification/documents"}}