{"id":"F2007L04753","name":"AD/ROBIN/5 Amdt 2 - Engine Mountings","slug":"ad-robin-5-amdt-2-engine-mountings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71273,"registerId":"commonwealth-F2007L04753-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Robin Aviation Series Aeroplanes","sectionType":"division","heading":"Robin Aviation Series Aeroplanes","content":"### Robin Aviation Series Aeroplanes\n\n| AD/ROBIN/5 Amdt 2 | Engine Mountings | 1/2008 |\n| ----------------- | ---------------- | ------ |\n\n| Applicability: | Model R2160 aircraft, serial numbers C193, C194, C195, C196, C197, C198, C199, and C202.Model R2112 aircraft, serial numbers 189 and 190.                                                                                                                                                                                          |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Inspect all the engine mountings, particularly the upper mountings, in accordance with Avions Pierre Robin Service Bulletin (SB) No. 97.If cracking is detected, before further flight, replace with engine mountings part number 51-40-30 in accordance with SB No. 97.Note: NZ CAA AD DCA/R2000/14 and DGAC AD F-1983-099 refer. |\n| Compliance:    | Unless already accomplished, before 24 January 2008. Inspect thereafter at intervals not to exceed 25 hours time in service; until replacement with part number 51-40-30 engine mountings in accordance with SB No. 97.                                                                                                            |\n|                | This Amendment becomes effective on 17 January 2008.                                                                                                                                                                                                                                                                               |\n| Background:    | Instances of engine mount cracking have been reported.Amendment 2 is issued to align this Directive with the related NZ CAA Directive which was issued as a result of Alpha Aviation becoming the Type Certificate holder for Model HR 200 and Model R 2000 series aircraft.                                                       |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n29 November 2007","sortOrder":0},{"sectionNumber":"AD/ROBIN/5 Amdt 2","sectionType":"part","heading":"AD/ROBIN/5 Amdt 2","content":"## AD/ROBIN/5 Amdt 2","sortOrder":1},{"sectionNumber":"Engine Mountings","sectionType":"part","heading":"Engine Mountings","content":"## Engine Mountings","sortOrder":2},{"sectionNumber":"1/2008","sectionType":"part","heading":"1/2008","content":"## 1/2008","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 2 was issued to align this Directive with a related New Zealand CAA Directive after Alpha Aviation became the Type Certificate holder. It sets explicit serial-number applicability, prescribes inspection intervals and a mandatory replacement part (51-40-30), and fixes a compliance deadline, thereby updating the Directive's operational scope (Background; Applicability; Requirement; Compliance)."},"complexity_factors":["Narrow applicability limited to specific models and serial numbers (Applicability).","Technical inspection standard linked to an external Service Bulletin (Requirement references SB No.97).","Condition-based replacement (replace if cracking detected) rather than blanket replacement.","Ongoing short-interval inspection requirement (every 25 hours) until replacement (Compliance).","Mandatory replacement part specified (part number 51-40-30), creating procurement constraint (Requirement).","Fixed compliance deadline and regulatory enforcement by CASA (Compliance; effective date).","Cross-references to NZ and DGAC directives increase regulatory coordination needs (Requirement/Note; Background)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Robin R2160 and R2112 aircraft (listed serial numbers) to inspect engine mountings per Avions Pierre Robin Service Bulletin No.97, replace any cracked mounts with part number 51-40-30 before further flight, and repeat inspections at intervals not exceeding 25 flight hours until replacement. The Civil Aviation Safety Authority enforces a compliance deadline (before 24 January 2008). Operators pay for inspections, parts and downtime and must adjust maintenance scheduling and parts sourcing (Requirement; Compliance; Applicability)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope of the airworthiness directive. Amendment 2 is purely administrative — it aligns the Australian directive with a New Zealand Civil Aviation Authority directive following a change in type certificate holder ownership. The safety issue (engine mounting cracks), affected aircraft, and required actions remain unchanged from previous versions."},"complexity_factors":["Very short document (approximately 200 words)","Only 2 defined aircraft models and 11 specific serial numbers in scope","Single primary requirement with one conditional branch (if cracking detected, replace)","No nested exceptions or complex conditional logic","One cross-reference to a service bulletin (SB No. 97) and two foreign aviation directives","Simple compliance timeline with single deadline and recurring interval"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of specific Robin R2160 (S/N C193–C199, C202) and R2112 (S/N 189–190) aeroplanes to inspect engine mountings for cracks by 24 January 2008, repeat inspections every 25 flight hours until an improved part (P/N 51‑40‑30) is fitted, and replace any cracked mountings before flight. It responds to reported cracking that could cause engine separation and aligns the AD with a related New Zealand order and the new type‑certificate holder."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-robin-5-amdt-2-engine-mountings","history":"/api/acts/ad-robin-5-amdt-2-engine-mountings/history","analysis":"/api/acts/ad-robin-5-amdt-2-engine-mountings/analysis","conflicts":"/api/acts/ad-robin-5-amdt-2-engine-mountings/conflicts","importantCases":"/api/acts/ad-robin-5-amdt-2-engine-mountings/important-cases","documents":"/api/acts/ad-robin-5-amdt-2-engine-mountings/documents"}}