{"id":"F2006B02065","name":"AD/AA-5/7 Amdt 1 - Wing Structure - Service Life","slug":"ad-aa-5-7-amdt-1-wing-structure-service-life","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41295,"registerId":"commonwealth-F2006B02065-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AA-5/7 Amdt 1 - Wing Structure - Service Life","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue 9/1975,Aircraft below 5700 kg,Gulfstream (Grumman American/ American Aviation) AA-5 Series Aeroplanes,Wing Structure - Service Life,7 Amdt 1\ntitle: Airworthiness Directive - AD/AA-5/7 Amdt 1 - Wing Structure - Service Life\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)  Gulfstream (Grumman American/ American Aviation) AA-5 Series Aeroplanes\n\n \n\n# AD/AA-5/7\n\nAmdt 1\n\nApplicability: All models.\n\n# Wing Structure - Service Life 9/75\n\n \n\nRequirement: Retirement of “Service Life Limited Components” shall be carried out on or before reaching the Manufacturer’s service lives stated below:\n\n \n\n| Component | Aircraft Model | Part Number | Service Life Hours |\n| --- | --- | --- | --- |\n| Inboard Spar Assembly | AA-5 & 5A AA-5B | 5102310-501<br>5102310-502 | 12,000<br>12,000 |\n| Shoulder Bolt | AA-5 & 5A AA-5B | 901044-1/2<br>901044-2 | 7,250<br>7,250 |\n| Wing Spar Assembly | AA-5 & 5A AA-5A & 5B | 5201002-501<br>5201004-501 | 12,500<br>12,500 |\n| Wing Outboard Spar Assembly | AA-5 & 5A AA-5B | 5201189-501<br>5201189-501 | 12,500<br>12,500 |\n\n\nCompliance: As detailed in requirement.\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":2,"scope_assessment":{"changed":false,"description":"This is Amendment 1 to an existing Airworthiness Directive (originally Issue 9/1975). The scope remains tightly focused on wing structure service life limits for the AA-5 series. There is no evidence of scope creep — it addresses the same safety issue (fatigue life of wing spars) as the original directive, likely with updated part numbers or hour limits."},"complexity_factors":["Single, clearly defined applicability (all AA-5 series models)","Only 4 components regulated with straightforward hour limits","No nested exceptions, conditional logic, or cross-references to other legislation","Simple table format with 4 columns (Component, Model, Part Number, Hours)","No defined terms section — common aviation terminology only","Compliance requirement is absolute ('on or before reaching') with no alternative methods"],"plain_english_summary":"This AD requires permanent retirement and replacement of certain wing spars and a critical shoulder bolt on Gulfstream AA-5 series (AA-5/AA-5A/AA-5B) aircraft after fixed flight‑hour limits, establishing service‑life limits to address metal‑fatigue risk. \n\nIt affects owners and operators of these small four‑seat planes, prevents catastrophic wing failure by forcing timely part replacement, and grounds aircraft that don’t comply until the retired components are replaced."},"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The instrument is labelled \"Amdt 1,\" indicating it amends a prior AD. The provided text gives the current applicability and the service‑life hours but does not include the original AD text, so specific differences in scope or limits from the original cannot be determined from this document alone."},"complexity_factors":["Clear, limited scope: applies to all AA‑5 models and names specific components and part numbers (Applicability; Requirement).","Prescriptive numeric limits: fixed service‑life hours for each part require accurate hour tracking and recordkeeping (Requirement; Table).","Multiple part‑number mappings: several assemblies and shoulder bolts listed across submodels increases parts-management work (Table).","Low regulatory discretion: directive mandates retirement \"on or before\" the listed hours, leaving little interpretive flexibility (Requirement).","Operational compliance burden: owners/operators and maintenance organisations bear replacement costs and scheduling impacts to meet retirements (Requirement).","Enforcement context: issued under Part 39 airworthiness directives framework, so compliance is compulsory rather than advisory (header: Civil Aviation Regulations 1998, PART 39)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Gulfstream (Grumman American/American Aviation) AA‑5 series aeroplanes to retire certain wing structure parts once they reach the manufacturer’s stated service‑life hours. The directive lists specific part numbers and mandatory retirement hours and must be complied with on or before those hours (Applicability; Requirement). It affects aircraft owners, maintenance organisations and operators who must track component hours and replace parts when they hit the listed limits."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aa-5-7-amdt-1-wing-structure-service-life","history":"/api/acts/ad-aa-5-7-amdt-1-wing-structure-service-life/history","analysis":"/api/acts/ad-aa-5-7-amdt-1-wing-structure-service-life/analysis","conflicts":"/api/acts/ad-aa-5-7-amdt-1-wing-structure-service-life/conflicts","importantCases":"/api/acts/ad-aa-5-7-amdt-1-wing-structure-service-life/important-cases","documents":"/api/acts/ad-aa-5-7-amdt-1-wing-structure-service-life/documents"}}