{"id":"F2006L03607","name":"AD/SA 315/2 - Free-Wheel Inspections following Main Rotor Impact","slug":"ad-sa-315-2-free-wheel-inspections-following-main-rotor-impact","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":137281,"registerId":"commonwealth-F2006L03607-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter SA 315 (Lama) Series Helicopt","sectionType":"division","heading":"Eurocopter SA 315 (Lama) Series Helicopters","content":"### Eurocopter SA 315 (Lama) Series Helicopters\n\n| AD/SA 315/2 | Free-Wheel Inspections followingMain Rotor Impact | 12/2006 |\n| ----------- | ------------------------------------------------- | ------- |\n\n| Applicability: | EUROCOPTER SA 315 B (LAMA) helicopters on which the main rotor has hit an obstacle while rotating.                                                                            |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Carry out the actions detailed in EUROCOPTER Telex Service N° 01.27 dated22 April 1992 or later DGAC approved revision.Note: DGAC AD 92-130-033(B) dated 10 June 1992 refers. |\n| Compliance:    | Before further flight after any time the main rotor hits an obstacle.                                                                                                         |\n|                | This Airworthiness Directive becomes effective on 23 November 2006.                                                                                                           |\n| Background:    | The actions detailed in this AD are intended to prevent failure of the freewheel following the main rotor hitting an obstacle.                                                |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n29 September 2006","sortOrder":0},{"sectionNumber":"AD/SA 315/2","sectionType":"part","heading":"AD/SA 315/2","content":"## AD/SA 315/2","sortOrder":1},{"sectionNumber":"Free-Wheel Inspections followingMain Rot","sectionType":"part","heading":"Free-Wheel Inspections followingMain Rotor Impact","content":"## Free-Wheel Inspections following  \nMain Rotor Impact","sortOrder":2},{"sectionNumber":"12/2006","sectionType":"part","heading":"12/2006","content":"## 12/2006","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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific mechanical failure mode (freewheel damage after rotor strike) in a specific aircraft type. The scope remains precisely limited to its original safety purpose with no evidence of scope creep."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined term implicitly referenced (the 'freewheel' — explained in context)","Single, unambiguous compliance trigger: 'main rotor hits an obstacle'","No nested exceptions or conditional logic","Cross-reference to only 1 external document (Eurocopter Telex Service N° 01.27)","Clear, immediate compliance deadline ('before further flight')"],"plain_english_summary":"If a Eurocopter SA 315 B (Lama) main rotor strikes an obstacle, the helicopter must be grounded and may not fly again until an inspection is completed per the April 1992 Eurocopter service telex (or later approved revision). This mandatory AD affects owners/operators and exists because damage to the freewheel from a rotor strike can later prevent autorotation, risking catastrophic loss of control."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope matches the instrument's stated intent: to prevent freewheel failure after a main rotor impact by requiring the inspections specified in Eurocopter Telex No. 01.27 (Requirement; Background). There is no indication in the text that the AD expands or narrows that original safety aim."},"complexity_factors":["Narrow applicability: applies only to EUROCOPTER SA 315 B (Lama) helicopters after the main rotor has hit an obstacle (Applicability).","Prescriptive timing: inspection mandatory before further flight, creating immediate operational impact/grounding (Compliance).","Dependence on an external technical document: actions are specified in Eurocopter Telex Service No. 01.27 or later DGAC‑approved revision, so full procedural detail is outside the AD itself (Requirement).","Regulatory cross‑reference: cites DGAC AD 92‑130‑033(B), adding an international certification reference that operators must check (Requirement/Background).","Low discretion: the AD mandates a specific inspection action, leaving little regulatory discretion but requiring maintenance capability and recordkeeping (Requirement).","Implementation cost borne by operators/owners: inspections and any subsequent repairs are operational costs and may delay flights (Compliance)."],"plain_english_summary":"This Airworthiness Directive requires operators of Eurocopter SA 315 B (Lama) helicopters, after the main rotor has hit an obstacle while rotating, to have the freewheel inspected in accordance with Eurocopter Telex Service No. 01.27 (22 April 1992) or a later DGAC‑approved revision, before further flight. The AD names DGAC AD 92‑130‑033(B) as a reference and became effective 23 November 2006. Operators must ground the helicopter until the specified inspection is completed and pay for/arrange the maintenance (Applicability; Requirement; Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sa-315-2-free-wheel-inspections-following-main-rotor-impact","history":"/api/acts/ad-sa-315-2-free-wheel-inspections-following-main-rotor-impact/history","analysis":"/api/acts/ad-sa-315-2-free-wheel-inspections-following-main-rotor-impact/analysis","conflicts":"/api/acts/ad-sa-315-2-free-wheel-inspections-following-main-rotor-impact/conflicts","importantCases":"/api/acts/ad-sa-315-2-free-wheel-inspections-following-main-rotor-impact/important-cases","documents":"/api/acts/ad-sa-315-2-free-wheel-inspections-following-main-rotor-impact/documents"}}