{"id":"F2007L04795","name":"AD/DH 104/30 - Front Seat Restraint Installation - Modification - CANCELLED","slug":"ad-dh-104-30-front-seat-restraint-installation-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71331,"registerId":"commonwealth-F2007L04795-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"DH 104 (Dove) Series Aeroplanes","sectionType":"division","heading":"DH 104 (Dove) Series Aeroplanes","content":"### DH 104 (Dove) Series Aeroplanes\n\n| AD/DH 104/30 | 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 This AD has been replaced by AD/GENERAL/74 Amendment 1.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/DH 104/30","sectionType":"part","heading":"AD/DH 104/30","content":"## AD/DH 104/30","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":2065},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The original 1972 directive imposed mandatory installation requirements for upper torso restraints on specific DH 104 Dove aircraft. This 2008 version eliminates those specific obligations entirely, shifting compliance to a general airworthiness directive (AD/GENERAL/74) that applies across multiple aircraft types. The scope has inverted from imposing specific design modifications to removing them in favour of a broader regulatory framework."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or interpretation section","No conditional logic, exceptions, or procedural steps","Minimal cross-referencing (single reference to replacement directive AD/GENERAL/74)","Extremely short length (under 100 words of substantive content)"],"plain_english_summary":"This document **cancels an older safety rule** that required shoulder harnesses (called \"upper torso restraints\") to be installed in the front seats of De Havilland DH 104 Dove aircraft certified before 1967.\n\n**What it means:**\n- The original 1972 directive forced owners of these specific vintage planes to install modern seatbelts with shoulder straps.\n- As of **17 January 2008**, this specific rule no longer applies.\n- Aircraft owners must now follow a **general airworthiness directive** (AD/GENERAL/74 Amendment 1) instead of this model-specific one.\n\n**Who it affects:** Owners and operators of DH 104 Dove series aircraft, though most will now comply with the broader replacement directive rather than this cancelled rule."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dh-104-30-front-seat-restraint-installation-modification-cancelled","history":"/api/acts/ad-dh-104-30-front-seat-restraint-installation-modification-cancelled/history","analysis":"/api/acts/ad-dh-104-30-front-seat-restraint-installation-modification-cancelled/analysis","conflicts":"/api/acts/ad-dh-104-30-front-seat-restraint-installation-modification-cancelled/conflicts","importantCases":"/api/acts/ad-dh-104-30-front-seat-restraint-installation-modification-cancelled/important-cases","documents":"/api/acts/ad-dh-104-30-front-seat-restraint-installation-modification-cancelled/documents"}}