{"id":"F2007L04771","name":"AD/PA-18/7 - Front Seat Restraint Installations - Modification - CANCELLED","slug":"ad-pa-18-7-front-seat-restraint-installations-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":71307,"registerId":"commonwealth-F2007L04771-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-18 and 19 (Super Cub) Series Ae","sectionType":"division","heading":"Piper PA-18 and 19 (Super Cub) Series Aeroplanes","content":"### Piper PA-18 and 19 (Super Cub) Series Aeroplanes\n\n| AD/PA-18/7 | 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 This AD has been replaced by AD/GENERAL/74 Amendment 1.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-18/7","sectionType":"part","heading":"AD/PA-18/7","content":"## AD/PA-18/7","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":1529},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs a straightforward revocation of a previous directive. The scope remains limited to the specific aircraft type (Piper PA-18/19 series) and is actually narrowing by transferring obligations to a consolidated general directive rather than expanding regulatory reach."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other Acts","Extremely short substantive content (under 75 words)"],"plain_english_summary":"This document officially cancels an old aviation safety rule (called an **Airworthiness Directive**) for Piper Super Cub aircraft.\n\n**What the old rule required:** Originally issued in 1971, it forced owners to install shoulder harnesses (upper torso restraints) in the front seats of Piper PA-18 and PA-19 aircraft certified before 1967.\n\n**What this document does:** It cancels that old rule effective 17 January 2008.\n\n**Why it matters:** If you own one of these vintage aircraft, you no longer need to follow this specific directive. However, you must now comply with a replacement rule (**AD/GENERAL/74 Amendment 1**) that covers the same safety requirement across multiple aircraft types. The shoulder harnesses themselves still need to be there; only the specific paperwork reference has changed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-18-7-front-seat-restraint-installations-modification-cancelled","history":"/api/acts/ad-pa-18-7-front-seat-restraint-installations-modification-cancelled/history","analysis":"/api/acts/ad-pa-18-7-front-seat-restraint-installations-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-18-7-front-seat-restraint-installations-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-18-7-front-seat-restraint-installations-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-18-7-front-seat-restraint-installations-modification-cancelled/documents"}}