{"id":"F2007L04863","name":"AD/AC/47 - Front Seat Restraint Installation - Modification - CANCELLED","slug":"ad-ac-47-front-seat-restraint-installation-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71668,"registerId":"commonwealth-F2007L04863-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Twin Commander (Gulfstream/Rockwell/Aero","sectionType":"division","heading":"Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) Series Aeroplanes","content":"### Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) Series Aeroplanes\n\n| AD/AC/47 | 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 This AD has been replaced by AD/GENERAL/74 Amendment 1.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/AC/47","sectionType":"part","heading":"AD/AC/47","content":"## AD/AC/47","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":2457},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument does not expand the scope of the original legislation; it terminates it entirely. The regulatory requirements for torso restraints have been consolidated into a general airworthiness directive (AD/GENERAL/74) rather than being expanded within this specific instrument."},"complexity_factors":["Single operative provision (cancellation only)","No substantive compliance requirements or conditional logic","No definitions section or interpretation provisions","Minimal cross-referencing (only one reference to the replacement directive)"],"plain_english_summary":"This document officially cancels a 1972 aviation safety rule that required shoulder harnesses (seatbelts that go over the shoulders and chest) to be installed in the front seats of certain older Twin Commander aircraft.\n\n**What the original rule did**: It required owners of Twin Commander 500, 600, and 700 series aircraft—specifically those certified before 1967—to install upper torso restraints to protect pilots and front-seat passengers during crashes.\n\n**What this document does**: As of 17 January 2008, this specific rule is cancelled and no longer applies. The safety requirements have moved to a broader rule (AD/GENERAL/74 Amendment 1) that covers similar protections across multiple aircraft types, rather than just these specific Twin Commander models.\n\n**Who needs to know**: Owners and operators of the affected Twin Commander aircraft should follow the replacement general directive instead of this cancelled one."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ac-47-front-seat-restraint-installation-modification-cancelled","history":"/api/acts/ad-ac-47-front-seat-restraint-installation-modification-cancelled/history","analysis":"/api/acts/ad-ac-47-front-seat-restraint-installation-modification-cancelled/analysis","conflicts":"/api/acts/ad-ac-47-front-seat-restraint-installation-modification-cancelled/conflicts","importantCases":"/api/acts/ad-ac-47-front-seat-restraint-installation-modification-cancelled/important-cases","documents":"/api/acts/ad-ac-47-front-seat-restraint-installation-modification-cancelled/documents"}}