{"id":"F2007L04767","name":"AD/PA-24/27 - Front Seat Restraint Installations - Modification - CANCELLED","slug":"ad-pa-24-27-front-seat-restraint-installations-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71302,"registerId":"commonwealth-F2007L04767-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-24 (Comanche) Series Aeroplanes","sectionType":"division","heading":"Piper PA-24 (Comanche) Series Aeroplanes","content":"### Piper PA-24 (Comanche) Series Aeroplanes\n\n| AD/PA-24/27 | Front Seat Restraint Installations - 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 1971 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 This AD has been replaced by AD/GENERAL/74 Amendment 1.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\n22 November 2007","sortOrder":0},{"sectionNumber":"AD/PA-24/27","sectionType":"part","heading":"AD/PA-24/27","content":"## AD/PA-24/27","sortOrder":1},{"sectionNumber":"Front Seat Restraint Installations - Mod","sectionType":"part","heading":"Front Seat Restraint Installations - Modification","content":"## Front Seat Restraint Installations - 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":2246},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument has been cancelled entirely rather than expanded beyond its original purpose. It originally mandated specific safety equipment modifications for Piper PA-24 aircraft, but now simply terminates that requirement and redirects operators to a general directive covering all aircraft types."},"complexity_factors":["Single operative provision cancelling previous requirements","No defined terms or interpretative provisions","Minimal cross-referencing (only to the replacement directive AD/GENERAL/74)","No conditional logic, exceptions, or technical legal drafting"],"plain_english_summary":"This document cancels an old aviation safety rule for **Piper PA-24 Comanche aircraft**. The original rule (issued in 1971) required owners to install **shoulder harnesses** (upper torso restraints) in the front seats if their plane was certified before 1967.\n\n**What changed:**\n* As of **17 January 2008**, this specific rule no longer applies\n* It has been replaced by a general safety directive (**AD/GENERAL/74 Amendment 1**) that covers all aircraft types, not just Piper Comanches\n\n**What this means for aircraft owners:**\nYou no longer need to follow this specific directive for your Piper PA-24. However, you must ensure your front seat restraints still meet the standards set out in the new general rule that replaces it."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-24-27-front-seat-restraint-installations-modification-cancelled","history":"/api/acts/ad-pa-24-27-front-seat-restraint-installations-modification-cancelled/history","analysis":"/api/acts/ad-pa-24-27-front-seat-restraint-installations-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-24-27-front-seat-restraint-installations-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-24-27-front-seat-restraint-installations-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-24-27-front-seat-restraint-installations-modification-cancelled/documents"}}