{"id":"F2006B10191","name":"AD/GAF-N22/44 Amdt 2 - Rudder Control Lever Shafts","slug":"ad-gaf-n22-44-amdt-2-rudder-control-lever-shafts","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55849,"registerId":"commonwealth-F2006B10191-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GAF-N22/44 Amdt 2 - Rudder Control Lever Shafts","content":"![](image.001.png)\n\n![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\nOn the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/GAF-N22/44 Amdt 1 and issues the following AD under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)\n\nGAF N22 and N24 Series Aeroplanes\n\nAD/GAF-N22/44\n\nAmdt 2\n\n  \nRudder Control Lever Shafts 11/2004\n\nApplicability: All models N22 and N24 aircraft with line sequence numbers listed in the requirements document that are fitted with rudder control lever shafts P/N’s 1/N-45- 1102, 2/N-45-1102, 1/N-45-1103 & 1/N-45-1104.\n\n| Requirement: | 1.  | Inspect in accordance with Nomad Alert Service Bulletin ANMD-27-51 Rev 2 dated 29 April 2004.                                                                                   |\n| ------------ | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | 2.  | Repetitive Inspections are to be made in accordance with Temporary Revisions 25 and 26 of the Inspection Requirements Manual.                                                   |\n| Compliance:  | 1.  | If not already accomplished, inspect within 10 hours time in service after 26 December 2002.                                                                                    |\n|              | 2.  | Re-inspect at intervals not to exceed 300 hours time in service after the initial inspection, or before next flight after any event that may cause abnormal rudder pedal loads. |\n\nThis Amendment becomes effective on 28 October 2004.\n\nBackground: The manufacturer has advised that another failure of the rudder control lever shaft has occurred since the introduction of Alert Service Bulletin ANMD-27-23. All the failures have occurred during ground operations and nosewheel steering/rudder loads are now considered to be the primary cause.\n\nAmendment 1 changed the requirement document to a new version. The new requirement document (ANMD-27-51) included a new part no. that replaced an earlier part, and changed the minimum thickness allowed.\n\nGAF N22 and N24 Series Aeroplanes\n\nAD/GAF-N22/44 Amdt 2 (continued)\n\nAmendment 2 again changes the requirements document to the latest version. The latest requirement documents now has the Part B repetitive inspection requirements deleted and reference made to the Inspection Requirements Manual. This amendment also increases the interval between repetitive inspections to 300 hrs time in service.\n\nThe Requirement 1 compliance time is not effected by this amendment.\n\n![](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 17 September 2004\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 6 October 2004.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":true,"description":"Amendment 2 changes the requirement document to the latest version (ANMD-27-51 Rev 2), deletes the earlier Part B repetitive inspection requirements and directs repetitive inspections to the Inspection Requirements Manual, and increases the repetitive inspection interval to 300 hours TIS. The initial Requirement 1 compliance time remains unchanged."},"complexity_factors":["Cross-references multiple external documents: Nomad Alert Service Bulletin ANMD-27-51 Rev 2 and Temporary Revisions 25 & 26 of the Inspection Requirements Manual.","Applicability limited to specific aircraft line sequence numbers and precise part numbers (1/N-45-1102, 2/N-45-1102, 1/N-45-1103 & 1/N-45-1104), requiring operators to check records.","Amendment history: revokes Amdt 1 and replaces requirement documents and part details, so operators must track version changes to comply.","Mixed timing requirements including a retrospective initial inspection deadline (within 10 hours TIS after 26 December 2002 if not already done) and ongoing repetitive inspections.","Repetitive inspections are both time-based (every 300 hours TIS) and event-driven (before next flight after events causing abnormal rudder pedal loads).","Deletion of prior 'Part B' repetitive inspection requirements and substitution with IRM references changes procedural compliance (possible training/maintenance procedure updates).","Technical safety risk tied to specific operational condition (ground nosewheel steering/rudder loads) which may require investigative judgment by maintenance staff."],"plain_english_summary":"This amendment updates an airworthiness directive requiring operators of specified GAF N22/N24 aeroplanes fitted with listed rudder control lever shafts to inspect those shafts per Nomad Alert Service Bulletin ANMD-27-51 Rev 2 and to perform repetitive inspections per the Inspection Requirements Manual. CASA says the changes respond to shaft failures linked to nosewheel steering/rudder loads during ground operations. Operators (aircraft owners/operators/maintenance organisations) pay the inspection and any repair or replacement costs; the AD sets who decides when and how inspections are done and changes the inspection interval to 300 hours."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original purpose: addressing rudder control lever shaft failures in GAF N22/N24 aircraft. While Amendment 2 updates the technical references and extends the inspection interval from previous versions, it does not expand the scope beyond the specific mechanical issue identified in the original AD. The applicability (which aircraft and parts are affected) remains consistent with earlier versions."},"complexity_factors":["Short, single-purpose document focused on one mechanical component","Only 4 specific part numbers affected, with clear applicability criteria","Simple two-step compliance structure (initial inspection + repetitive inspections)","Minimal cross-referencing — only references one Service Bulletin (ANMD-27-51 Rev 2) and two Temporary Revisions of the Inspection Requirements Manual","No nested exceptions or conditional logic beyond the standard 'if not already accomplished' clause","Background section provides clear rationale for the amendment","Total length is approximately one page"],"plain_english_summary":"This AD requires owners/operators of certain GAF Nomad N22/N24 aircraft to inspect rudder control lever shafts because of reported shaft failures during ground steering. It mandates an initial inspection shortly after the effective date and recurring checks every 300 flight hours (or before flight after any unusual loading).\n\nAmendment 2 updates the technical reference, moves recurring-inspection details into the aircraft Inspection Requirements Manual, and extends the inspection interval to 300 hours."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-gaf-n22-44-amdt-2-rudder-control-lever-shafts","history":"/api/acts/ad-gaf-n22-44-amdt-2-rudder-control-lever-shafts/history","analysis":"/api/acts/ad-gaf-n22-44-amdt-2-rudder-control-lever-shafts/analysis","conflicts":"/api/acts/ad-gaf-n22-44-amdt-2-rudder-control-lever-shafts/conflicts","importantCases":"/api/acts/ad-gaf-n22-44-amdt-2-rudder-control-lever-shafts/important-cases","documents":"/api/acts/ad-gaf-n22-44-amdt-2-rudder-control-lever-shafts/documents"}}