{"id":"F2006B09391","name":"AD/ECUREUIL/87 - Main Rotor STARFLEX Star","slug":"ad-ecureuil-87-main-rotor-starflex-star","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53720,"registerId":"commonwealth-F2006B09391-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nEurocopter AS 350 (Ecureuil) Series Helicopters","sortOrder":0},{"sectionNumber":"AD/ECUREUIL/87 Main Rotor STARFLEX Star ","sectionType":"part","heading":"AD/ECUREUIL/87 Main Rotor STARFLEX Star 7/2003","content":"# AD/ECUREUIL/87 Main Rotor STARFLEX Star 7/2003\n\nDM\n\nApplicability: Model EC 130 version B4 helicopters equipped with STARFLEX stars part number 350A31.1916.00, installed on main rotor hubs pre. Mod. 076221.\n\nRequirement: 1. Check the adhesive bead of the metal bushes bonded on the STARFLEX star arm end in accordance with paragraph 2 of Eurocopter EC 130 Alert Telex No.\n\n05A001 R2.\n\n2. Install a stop stud at the bottom of each frequency adapter per Mod. 076221, in accordance with paragraph 2 of Eurocopter EC 130 Alert Service Bulletin (ASB) No. 62A001.\n\nBefore installation of main rotor heads held as spares on a helicopter, install a stop stud at the bottom of each frequency adapter per Mod. 076221, in accordance with paragraph 2 of ASB No. 62A001.\n\nNote: DGAC AD 2001-559-002(A) R3 refers.\n\nCompliance: 1. After each flight following main rotor stoppage.\n\nThis Directive shall be entered on the Maintenance Release as maintenance required. The required visual inspection may be performed by the Pilot in Command who has been trained to do the inspection by an appropriately Qualified person. In this case, a copy of the Requirement document and this Directive is to be carried in the aircraft.\n\n2. Before 30 June 2003, unless already accomplished.\n\nThis Airworthiness Directive becomes effective on 4 June 2003.","sortOrder":1}],"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":false,"description":"The AD targets a specific helicopter model and a specific STARFLEX star part number and requires two corrective actions (inspection and retrofit). The instrument does not expand beyond that applicability; it references Eurocopter service documents for execution and sets a retrofit deadline and inspection frequency."},"complexity_factors":["Narrow applicability to Model EC 130 version B4 with STARFLEX star part number 350A31.1916.00 (Applicability).","Two distinct mandatory actions: a repeated visual inspection and a retrofit installation of a stop stud per Mod. 076221 (Requirement).","References to external Eurocopter documents (Alert Telex No. 05A001 R2 and ASB No. 62A001) so compliance requires consulting manufacturer instructions (Requirement).","High-frequency inspection trigger — 'after each flight following main rotor stoppage' — creates operational/administrative burden (Compliance).","Permits pilot-performed inspection if trained, plus requirement to carry the directive and requirement document in the aircraft — adds training and documentation obligations (Compliance).","Retrofit deadline and effective date (effective 4 June 2003; install before 30 June 2003) impose a short compliance window for modifications (Compliance).","Alters spare main rotor head handling: spares must be modified before installation on a helicopter (Requirement).","Mandatory entry on the Maintenance Release creates record-keeping and enforcement points (Compliance)."],"plain_english_summary":"Requires operators of Eurocopter AS350/EC130 B4 helicopters fitted with a specific STARFLEX star (PN 350A31.1916.00) to visually check the bonded metal bushes after any flight where the main rotor has stopped, and to install a stop stud on each frequency adapter (Mod. 076221) by 30 June 2003. Operators pay for inspections and the retrofit; the visual check may be done by a trained pilot and the action must be recorded on the maintenance release (Requirement & Compliance)."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with focused, original scope. It addresses a specific unsafe condition in a defined aircraft type with targeted requirements. No scope creep detected."},"complexity_factors":["Multiple cross-references to external technical documents (Eurocopter Alert Telex 05A001 R2, Alert Service Bulletin 62A001, DGAC AD 2001-559-002(A) R3)","Specific part numbers and modification numbers requiring technical lookup (350A31.1916.00, Mod. 076221)","Dual compliance regimes: recurring inspection (after each flight) vs one-time installation deadline (30 June 2003)","Conditional applicability based on equipment configuration and modification status","Delegated inspection authority to trained pilots with documentation carriage requirement"],"plain_english_summary":"This emergency safety order targets Eurocopter EC130 B4 helicopters with STARFLEX rotor stars (P/N 350A31.1916.00) and requires immediate measures to prevent main rotor failure: frequent post-flight checks of the adhesive bond on metal bushings (trainable to pilots) and installation of a physical stop stud on each frequency adapter by the compliance deadline. It affects operators, pilots, and maintenance personnel and aims to avert catastrophic in-flight rotor collapse."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ecureuil-87-main-rotor-starflex-star","history":"/api/acts/ad-ecureuil-87-main-rotor-starflex-star/history","analysis":"/api/acts/ad-ecureuil-87-main-rotor-starflex-star/analysis","conflicts":"/api/acts/ad-ecureuil-87-main-rotor-starflex-star/conflicts","importantCases":"/api/acts/ad-ecureuil-87-main-rotor-starflex-star/important-cases","documents":"/api/acts/ad-ecureuil-87-main-rotor-starflex-star/documents"}}