{"id":"F2007L04770","name":"AD/PA-20/10 - Front Seat Restraint Installations - Modifications - CANCELLED","slug":"ad-pa-20-10-front-seat-restraint-installations-modifications-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71305,"registerId":"commonwealth-F2007L04770-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-20 (Pacer) Series Aeroplanes","sectionType":"division","heading":"Piper PA-20 (Pacer) Series Aeroplanes","content":"### Piper PA-20 (Pacer) Series Aeroplanes\n\n| AD/PA-20/10 | Front Seat RestraintInstallations - Modifications | 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 This AD has been replaced by AD/GENERAL/74 Amendment 1.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-20/10","sectionType":"part","heading":"AD/PA-20/10","content":"## AD/PA-20/10","sortOrder":1},{"sectionNumber":"Front Seat RestraintInstallations - Modi","sectionType":"part","heading":"Front Seat RestraintInstallations - Modifications","content":"## Front Seat Restraint  \nInstallations - Modifications","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":2359},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The original 1971 directive imposed a specific shoulder harness requirement directly on Piper PA-20 aircraft. This instrument withdraws that model-specific mandate and consolidates the requirement into a general airworthiness directive (AD/GENERAL/74) applicable to multiple aircraft types. The regulatory obligation still exists but is now administered under broader legislation rather than this specific instrument."},"complexity_factors":["Single operative provision (cancellation notice only)","No definitions or interpretation section","No conditional logic, exceptions, or procedural steps","Only one cross-reference to the replacement instrument"],"plain_english_summary":"This document **cancels a 1971 safety rule** that required shoulder harnesses (upper torso restraints) to be installed in the front seats of Piper PA-20 Pacer aircraft certified before 1967.\n\n**What is happening?**\n- The old rule (Airworthiness Directive AD/PA-20/10) is cancelled effective **17 January 2008**.\n- The safety requirement hasn't disappeared—it has been moved to a different rule (**AD/GENERAL/74 Amendment 1**) that covers multiple aircraft types, not just the Piper Pacer.\n\n**Who does this affect?**\nOwners and operators of Piper PA-20 (Pacer) series aircraft.\n\n**Why does this matter?**\nThis is housekeeping by the aviation regulator (CASA). Instead of having separate paperwork for each aircraft model, similar safety requirements are being consolidated into one general directive. If you own one of these planes, you must still comply with the shoulder harness requirements, but you'll now find them in the general directive rather than this model-specific one."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-20-10-front-seat-restraint-installations-modifications-cancelled","history":"/api/acts/ad-pa-20-10-front-seat-restraint-installations-modifications-cancelled/history","analysis":"/api/acts/ad-pa-20-10-front-seat-restraint-installations-modifications-cancelled/analysis","conflicts":"/api/acts/ad-pa-20-10-front-seat-restraint-installations-modifications-cancelled/conflicts","importantCases":"/api/acts/ad-pa-20-10-front-seat-restraint-installations-modifications-cancelled/important-cases","documents":"/api/acts/ad-pa-20-10-front-seat-restraint-installations-modifications-cancelled/documents"}}