{"id":"F2006B10078","name":"AD/G159/34 - Outer Wing to Integral Tank Front and Rear Beam Splices - Inspection","slug":"ad-g159-34-outer-wing-to-integral-tank-front-and-rear-beam-splices-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55530,"registerId":"commonwealth-F2006B10078-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/G159/34 - Outer Wing to Integral Tank Front and Rear Beam Splices - Inspection","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 ORDERS CIVIL AVIATION SAFETY AUTHORITY                            PART 105 SCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  GULFSTREAM (GRUMMAN) G.159 SERIES AEROPLANES\n\n \n\nAD/G159/34 Outer Wing to Integral Tank Front and Rear Beam\n\nSplices - Inspection\n\n\n1/79\n\n \n\nApplicability: All models G159.\n\n \n\nDocument: Grumman American Customer Bulletin No. 296. Compliance:  As per the requirement document.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive focused on a specific structural inspection. It has not expanded beyond its original purpose of mandating inspection of wing beam splices on the G.159 aircraft."},"complexity_factors":["Extremely short document — only 4 substantive lines","No defined terms section","No conditional logic or nested exceptions","Single cross-reference to external manufacturer document (Customer Bulletin No. 296)","Simple applicability clause ('All models G159')","No procedural detail contained within the instrument itself — compliance delegated entirely to external document"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for aircraft.\n\n**What it does:**\n- Requires owners and operators of **Gulfstream (Grumman) G.159 series aeroplanes** to inspect specific structural components: the splices (joints) where the outer wing connects to the front and rear beams of the integral fuel tank.\n\n**Who it affects:**\n- Anyone who owns, operates, or maintains **any model of the G.159 aircraft** (a twin-turboprop aircraft, also known as the Gulfstream I).\n\n**Why it matters:**\n- These inspections are mandatory to detect potential structural fatigue or damage at critical wing joints. Failure of these splices could compromise wing integrity and flight safety. The directive references a manufacturer bulletin (Grumman American Customer Bulletin No. 296) and requires compliance exactly as specified in that document.\n\n**Key point:** This is not optional maintenance — it's a legally enforceable safety requirement. Non-compliance can ground an aircraft."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The text of AD/G159/34 sets an inspection requirement for the outer wing to integral tank front and rear beam splices and applies it to all G.159 models. The instrument itself does not indicate any change from an earlier scope or an expansion/reduction of applicability. It delegates procedural detail to Grumman American Customer Bulletin No. 296, but no language in the AD suggests a change of scope from the directive's apparent original intent."},"complexity_factors":["Delegation of technical procedure to an external document (Grumman American Customer Bulletin No. 296) rather than inclusion of procedural details in the AD itself","Applicability to all G.159 models requires broad identification and tracing of affected airframes and operators","Potential variability in inspection scope and frequency depending on the content of the referenced bulletin (not included in the AD text)","Operational coordination required between operators and maintenance organisations (scheduling, parts, downtime)","Regulatory enforcement and acceptance of alternative compliance methods are not specified in the AD text, creating administrative discretion"],"plain_english_summary":"AD/G159/34 requires inspection of the connection splices between the outer wing and integral fuel‑tank front and rear beams on all Gulfstream (G.159) aircraft by mandating compliance with Grumman American Customer Bulletin No. 296.\n\nIt affects aircraft owners, operators and maintenance organisations, who must obtain the bulletin, carry out the inspections and any repairs, and bear the associated costs and downtime to maintain regulatory airworthiness."}},"importantCases":[],"_links":{"self":"/api/acts/ad-g159-34-outer-wing-to-integral-tank-front-and-rear-beam-splices-inspection","history":"/api/acts/ad-g159-34-outer-wing-to-integral-tank-front-and-rear-beam-splices-inspection/history","analysis":"/api/acts/ad-g159-34-outer-wing-to-integral-tank-front-and-rear-beam-splices-inspection/analysis","conflicts":"/api/acts/ad-g159-34-outer-wing-to-integral-tank-front-and-rear-beam-splices-inspection/conflicts","importantCases":"/api/acts/ad-g159-34-outer-wing-to-integral-tank-front-and-rear-beam-splices-inspection/important-cases","documents":"/api/acts/ad-g159-34-outer-wing-to-integral-tank-front-and-rear-beam-splices-inspection/documents"}}