{"id":"F2007L04782","name":"AD/HELIO/2 - Front Seat Restraint Installation - Modification - CANCELLED","slug":"ad-helio-2-front-seat-restraint-installation-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71318,"registerId":"commonwealth-F2007L04782-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Helio Courier Series Aeroplanes","sectionType":"division","heading":"Helio Courier Series Aeroplanes","content":"### Helio Courier Series Aeroplanes\n\n| AD/HELIO/2 | Front Seat Restraint Installation - Modification | 1/2008 |\n| ---------- | ------------------------------------------------ | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                   |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 17 January 2008.                                                                                                                                     |\n| Background:  | This AD was issued in 1972 to require the installation of upper torso restraint on aircraft certified prior to 1967. This AD has been replaced by AD/GENERAL/74 Amendment 1. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n26 November 2007","sortOrder":0},{"sectionNumber":"AD/HELIO/2","sectionType":"part","heading":"AD/HELIO/2","content":"## AD/HELIO/2","sortOrder":1},{"sectionNumber":"Front Seat Restraint Installation - Modi","sectionType":"part","heading":"Front Seat Restraint Installation - Modification","content":"## Front Seat Restraint Installation - Modification","sortOrder":2},{"sectionNumber":"1/2008","sectionType":"part","heading":"1/2008","content":"## 1/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1246},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a straightforward cancellation notice that removes a previous requirement without introducing new obligations or expanding the regulatory scope. The subject matter (aircraft seat restraints) remains regulated under a general instrument rather than this type-specific directive."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic, exceptions, or transitional provisions","Minimal cross-referencing (only noting the replacement instrument)"],"plain_english_summary":"This document **cancels an old aviation safety rule** that required owners of Helio Courier series aircraft (certified before 1967) to install shoulder harnesses (upper torso restraints) in the front seats.\n\n**What it does:**\n- Revokes Airworthiness Directive AD/HELIO/2 effective 17 January 2008\n- Removes the specific requirement for Helio Courier aircraft to have upper torso restraints installed\n\n**Why it matters:**\nThe original 1972 rule was designed to improve pilot safety by requiring modern seatbelts in older aircraft. However, it has been replaced by a **broader, general rule** (AD/GENERAL/74 Amendment 1) that applies to all aircraft types, making this specific directive redundant. Owners of these aircraft no longer need to comply with this particular requirement, though they must still follow the replacement general directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-helio-2-front-seat-restraint-installation-modification-cancelled","history":"/api/acts/ad-helio-2-front-seat-restraint-installation-modification-cancelled/history","analysis":"/api/acts/ad-helio-2-front-seat-restraint-installation-modification-cancelled/analysis","conflicts":"/api/acts/ad-helio-2-front-seat-restraint-installation-modification-cancelled/conflicts","importantCases":"/api/acts/ad-helio-2-front-seat-restraint-installation-modification-cancelled/important-cases","documents":"/api/acts/ad-helio-2-front-seat-restraint-installation-modification-cancelled/documents"}}