{"id":"F2007L04769","name":"AD/PA-22/25 - Front Seat Restraint Installations - Modification - CANCELLED","slug":"ad-pa-22-25-front-seat-restraint-installations-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71304,"registerId":"commonwealth-F2007L04769-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-22 (Tri-Pacer and Colt) Series ","sectionType":"division","heading":"Piper PA-22 (Tri-Pacer and Colt) Series Aeroplanes","content":"### Piper PA-22 (Tri-Pacer and Colt) Series Aeroplanes\n\n| AD/PA-22/25 | 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 This AD has been replaced by AD/GENERAL/74 Amendment 1.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-22/25","sectionType":"part","heading":"AD/PA-22/25","content":"## AD/PA-22/25","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":3146},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The original 1971 directive mandated specific safety modifications (installation of upper torso restraints). This 2008 version cancels those requirements entirely, effectively reducing the scope to zero and transferring any ongoing obligations to a different directive (AD/GENERAL/74 Amendment 1)."},"complexity_factors":["Single operative provision (cancellation only)","No conditional logic or exceptions","Minimal cross-referencing (only references the replacement directive AD/GENERAL/74)","Very short document with no defined terms section"],"plain_english_summary":"This document **cancels** a specific aircraft safety rule that has been in place since 1971. The original rule required owners of **Piper PA-22 Tri-Pacer and Colt aircraft** to install upper torso restraints (shoulder harnesses) for front seat passengers.\n\n**What this does:**\n- **Cancels** the previous airworthiness directive effective 17 January 2008\n- Removes the specific compliance requirement for these aircraft under this document\n- Transfers the safety obligation to a general directive (**AD/GENERAL/74 Amendment 1**) that covers restraint requirements across multiple aircraft types\n\n**Who it affects:**\nOwners, operators, and maintenance engineers of Piper PA-22 series aircraft.\n\n**Why it matters:**\nInstead of following this specific rule, aircraft owners now comply with the broader general directive. This streamlines regulations by consolidating similar requirements into one document rather than having separate rules for each aircraft model."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-22-25-front-seat-restraint-installations-modification-cancelled","history":"/api/acts/ad-pa-22-25-front-seat-restraint-installations-modification-cancelled/history","analysis":"/api/acts/ad-pa-22-25-front-seat-restraint-installations-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-22-25-front-seat-restraint-installations-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-22-25-front-seat-restraint-installations-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-22-25-front-seat-restraint-installations-modification-cancelled/documents"}}