{"id":"F2006B10147","name":"AD/GA-7/3 - Elevator Bellcrank Pivot Bolt - Inspection and Replacement","slug":"ad-ga-7-3-elevator-bellcrank-pivot-bolt-inspection-and-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55722,"registerId":"commonwealth-F2006B10147-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GA-7/3 - Elevator Bellcrank Pivot Bolt - Inspection and 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)  Gulfstream (Grumman American) GA-7 Series Aeroplanes\n\n \n\nAD/GA-7/3 Elevator Bellcrank Pivot Bolt - Inspection NK\n\nand Replacement Applicability: All models GA-7 with S/Nos. GA7-00002, 0005 to 0021. Document:               Gulfstream American SB No. ME-3.\n\nCompliance: 1. Inspect within 100 hours time in service after 31 March 1979 and thereafter at intervals not exceeding 100 hours time in service.\n\n \n\n2. Replace within 500 hours time in service after 31 March 1979.\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":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive focused on one specific mechanical component on a limited fleet of aircraft. It has not expanded beyond its original safety purpose. The scope remains tightly constrained to the elevator bellcrank pivot bolt issue identified by the manufacturer."},"complexity_factors":["Extremely short document — approximately 150 words of substantive content","Only one defined term implicitly used ('time in service' — flight hours, not calendar time)","No cross-references to other legislation beyond the enabling regulation (CAR 1998 Part 39)","Simple conditional structure: two clear compliance actions with unambiguous deadlines","Narrow applicability — specific aircraft models and serial numbers listed explicitly","Single source document referenced (Manufacturer Service Bulletin ME-3)"],"plain_english_summary":"This is an **Airworthiness Directive** (AD) — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:**\nIt requires owners and operators of specific Gulfstream GA-7 series aeroplanes to inspect and eventually replace a particular bolt — the \"elevator bellcrank pivot bolt\" — which is part of the aircraft's control system that moves the elevator (the flap on the tail that makes the plane go up or down).\n\n**Who it affects:**\nAnyone who owns or operates a Gulfstream (formerly Grumman American) GA-7 aircraft with serial numbers GA7-00002, or GA7-0005 through GA7-0021. This is a very narrow, specific group — roughly 18 aircraft total.\n\n**What they must do:**\n- **Inspect** the bolt every 100 hours of flight time, starting within 100 hours after 31 March 1979\n- **Replace** the bolt entirely within 500 hours of flight time after that same date\n\n**Why it matters:**\nThis bolt is critical to flight safety. If it fails, the pilot could lose control of the aircraft's pitch (up/down movement). The directive was issued because Gulfstream American (the manufacturer) identified a safety problem and issued Service Bulletin ME-3. CASA made compliance mandatory through this AD.\n\n**Key point:** This is not optional maintenance advice — it's legally enforceable. Non-compliance means the aircraft cannot legally fly in Australian airspace."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The text supplied contains a single AD with stated applicability and explicit compliance requirements. There is no indication in this document of an amendment to, or a narrowing/expansion of, an earlier instrument; the AD sets out the original scope and mandatory actions (Applicability; Compliance 1–2)."},"complexity_factors":["Narrow applicability limited to specific GA-7 serial numbers (Applicability)","Fixed, straightforward compliance actions with clear time-in-service intervals (Compliance 1–2)","Cross-reference to a single service bulletin for technical execution (Applicability)","Time-reference anchored to a historical date (\"after 31 March 1979\") which requires correct interpretation of hours-in-service accounting (Compliance 1–2)","Administrative burden limited to routine tracking of hours, inspections and a one-time replacement (Compliance 1–2)"],"plain_english_summary":"This AD applies to Gulfstream (Grumman American) GA‑7 aircraft with serials GA7‑00002 and GA7‑00005 through GA7‑00021 and mandates inspection of the elevator bellcrank pivot bolt every 100 hours TIS and replacement within 500 hours TIS (deadlines counted from 31 Mar 1979), following Gulfstream American SB No. ME‑3.\n\nIt matters because owners/operators must schedule, perform, fund and record the recurring inspections and the mandatory replacement to remain compliant."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ga-7-3-elevator-bellcrank-pivot-bolt-inspection-and-replacement","history":"/api/acts/ad-ga-7-3-elevator-bellcrank-pivot-bolt-inspection-and-replacement/history","analysis":"/api/acts/ad-ga-7-3-elevator-bellcrank-pivot-bolt-inspection-and-replacement/analysis","conflicts":"/api/acts/ad-ga-7-3-elevator-bellcrank-pivot-bolt-inspection-and-replacement/conflicts","importantCases":"/api/acts/ad-ga-7-3-elevator-bellcrank-pivot-bolt-inspection-and-replacement/important-cases","documents":"/api/acts/ad-ga-7-3-elevator-bellcrank-pivot-bolt-inspection-and-replacement/documents"}}