{"id":"F2012L01926","name":"AD/GA200/1 Amdt 1 - Wing Strut Bolt","slug":"ad-ga200-1-amdt-1-wing-strut-bolt","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":89877,"registerId":"commonwealth-F2012L01926-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"GippsAero GA200 Series Aeroplanes","sectionType":"division","heading":"GippsAero GA200 Series Aeroplanes","content":"### GippsAero GA200 Series Aeroplanes\n\n| AD/GA200/1 Amdt 1 | Wing Strut Bolt | 20/2012 |\n| ----------------- | --------------- | ------- |\n\n| Applicability: | All GA200 and GA200C aircraft, all serial numbers.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Carry out the requirements of GippsAero service bulletin SB-GA200-2012-08Issue 2, dated 4 September 2012 or later approved revision.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n| Compliance:    | Carry out the requirements of the service bulletin within 10 flight hours and thereafter every 500 flight hours.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |\n|                | This Amendment becomes effective on 26 September 2012.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |\n| Background:    | As a result of a reported case of failure of a strut bolt on a GA200C aircraft, GippsAero has issued a mandatory service bulletin to alert operators and maintenance organisations and to provide inspection and rectification actions.This Airworthiness Directive makes this inspection and rectification action mandatory. Failure to complete the actions required by this service bulletin may result in wing strut bolt failure, resulting in wing structural failure.Amendment 1 is issued to revise the repeat inspection compliance time to 500 hours (previously 100 hours). The requirement service bulletin is also revised to provide a corrective action if the inboard (upper) strut fitting hole is found to be larger than specified. The initial inspection compliance time of 10 hours remains unchanged.The original issue of this Airworthiness Directive became effective on24 August 2012. |\n\n![](image.001.png)  \nRick Leeds  \nDelegate of the Civil Aviation Safety Authority\n\n21 September 2012","sortOrder":0},{"sectionNumber":"AD/GA200/1 Amdt 1","sectionType":"part","heading":"AD/GA200/1 Amdt 1","content":"## AD/GA200/1 Amdt 1","sortOrder":1},{"sectionNumber":"Wing Strut Bolt","sectionType":"part","heading":"Wing Strut Bolt","content":"## Wing Strut Bolt","sortOrder":2},{"sectionNumber":"20/2012","sectionType":"part","heading":"20/2012","content":"## 20/2012","sortOrder":3}],"analysis":{"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":"Amendment 1 modifies the original AD by increasing the repeat inspection interval from the earlier 100 hours to 500 flight hours and by adding a corrective action for an oversized inboard (upper) strut fitting hole; the initial 10‑hour inspection requirement remains unchanged (Background)."},"complexity_factors":["Mandatory compliance with a manufacturer service bulletin made compulsory by the AD (Requirement).","Short initial compliance window (10 flight hours) creating an immediate operational burden (Compliance).","Repeat inspection schedule (every 500 flight hours) requires ongoing maintenance planning and tracking (Compliance; Background).","Technical nature of inspections and potential corrective repairs for a primary wing strut attachment (Background).","Addition of a corrective action if the inboard (upper) strut fitting hole is larger than specified increases maintenance scope (Background; Requirement).","Applicability to all GA200 and GA200C aircraft, all serial numbers, broadens affected population (Applicability).","Enforcement and practical effect flow from CASA via its delegate, tying compliance to regulatory oversight (effective date/signature).","Potential costs: inspections, parts, labour and downtime fall on operators/maintenance organisations (Compliance)."],"plain_english_summary":"This Airworthiness Directive makes the inspection and corrective actions in GippsAero service bulletin SB‑GA200‑2012‑08 Issue 2 (or later) mandatory for all GippsAero GA200 and GA200C aeroplanes. Initial inspection is required within 10 flight hours and repeats every 500 flight hours. (Applicability; Requirement; Compliance)\n\nAircraft operators and maintenance organisations must carry out and pay for the inspections and repairs; the Civil Aviation Safety Authority delegate enforces the AD. The amendment extends the repeat interval and adds a corrective option where the inboard strut fitting hole is oversized. (Background)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original purpose: addressing the wing strut bolt failure risk in GA200 aircraft. The changes from the original directive are minor technical adjustments (inspection interval extension and added repair procedure for oversized holes) that refine rather than expand the scope."},"complexity_factors":["Single, specific mechanical component addressed (one bolt type in one aircraft series)","Only one substantive requirement: comply with referenced service bulletin","Simple compliance structure: initial inspection + recurring interval","No defined terms section, no cross-references to other legislation","No conditional exceptions or nested logic — applies to all aircraft in the series uniformly","Total length: approximately 250 words of operative text"],"plain_english_summary":"This Airworthiness Directive requires owners, operators and maintainers of GippsAero GA200 and GA200C aircraft to inspect—and repair if needed—a wing strut bolt that has failed on one aircraft and could cause in‑flight wing collapse. Inspections must follow GippsAero Service Bulletin SB‑GA200‑2012‑08 (or later approved) with an initial check within 10 flight hours and repeats every 500 flight hours.\n\nAmendment 1 raises the repeat interval from 100 to 500 hours and adds instructions for addressing oversized/worn bolt holes."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ga200-1-amdt-1-wing-strut-bolt","history":"/api/acts/ad-ga200-1-amdt-1-wing-strut-bolt/history","analysis":"/api/acts/ad-ga200-1-amdt-1-wing-strut-bolt/analysis","conflicts":"/api/acts/ad-ga200-1-amdt-1-wing-strut-bolt/conflicts","importantCases":"/api/acts/ad-ga200-1-amdt-1-wing-strut-bolt/important-cases","documents":"/api/acts/ad-ga200-1-amdt-1-wing-strut-bolt/documents"}}