{"id":"F2006B10197","name":"AD/GAF-N22/5 - Aileron Control System - Chain Replacement","slug":"ad-gaf-n22-5-aileron-control-system-chain-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55855,"registerId":"commonwealth-F2006B10197-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GAF-N22/5 - Aileron Control System - Chain Replacement","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-N22/5 Aileron Control System - Chain Replacement 10/75\n\nApplicability: Model N22 with S/Nos. N22-1 thru N22-4. Document:  GAF SB No. N22.27.1.\n\nCompliance: Within 100 hours time in service after 28 November 1975.\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":{"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive for a specific airworthiness issue on a limited number of aircraft. It has not expanded beyond its original purpose of mandating a specific mechanical repair."},"complexity_factors":["Single, specific technical requirement (chain replacement)","No defined terms section","No cross-references to other legislation beyond the enabling regulations","Clear applicability limited to 4 specific aircraft by serial number","Single compliance method referenced (one service bulletin)","Straightforward deadline calculation (100 hours time in service from fixed date)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998. It applies to specific GAF N22 aircraft (serial numbers N22-1 through N22-4).\n\n**What it does:**\n- Requires owners/operators to replace the **aileron control system chain** (a critical component that helps steer the aircraft by moving the wing flaps called ailerons)\n- The replacement must follow the manufacturer's instructions in **GAF Service Bulletin N22.27.1**\n\n**Who it affects:**\n- Owners and operators of four specific GAF N22 aircraft (very early production models with serial numbers 1-4)\n\n**Why it matters:**\n- Aileron control is essential for safe flight. A faulty chain could cause loss of control.\n- This is a **mandatory safety fix** — not optional. Non-compliance means the aircraft cannot legally fly.\n\n**Deadline:**\n- Must be completed within **100 hours of flight time** after 28 November 1975."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive's scope, as printed, is limited and explicit: it applies only to Model N22 aircraft S/Nos. N22-1 through N22-4 and requires replacement of the aileron control chain within 100 hours time in service after 28 November 1975, using GAF SB No. N22.27.1. There is no indication in the text that the scope departs from this specified, narrow applicability."},"complexity_factors":["Very narrow applicability (only four serial-numbered aircraft specified).","Single mandated action (chain replacement) with a single compliance window.","Clear external procedural reference (GAF Service Bulletin No. N22.27.1) for technical steps.","Fixed compliance deadline tied to a specific calendar date and a 100-hour time-in-service measure.","No conditional exemptions, alternative compliance paths, or multiple compliance options stated in the text."],"plain_english_summary":"This AD orders replacement of the aileron control system chain on GAF Model N22 aircraft S/N N22‑1 to N22‑4, to be completed within 100 hours time in service after 28 November 1975, following GAF Service Bulletin No. N22.27.1. It affects the four aircraft’ owners/operators and maintenance organisations; the Civil Aviation Safety Authority issued and enforces the requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gaf-n22-5-aileron-control-system-chain-replacement","history":"/api/acts/ad-gaf-n22-5-aileron-control-system-chain-replacement/history","analysis":"/api/acts/ad-gaf-n22-5-aileron-control-system-chain-replacement/analysis","conflicts":"/api/acts/ad-gaf-n22-5-aileron-control-system-chain-replacement/conflicts","importantCases":"/api/acts/ad-gaf-n22-5-aileron-control-system-chain-replacement/important-cases","documents":"/api/acts/ad-gaf-n22-5-aileron-control-system-chain-replacement/documents"}}