{"id":"F2008L01476","name":"AD/PA-28/32 - Pitch Trim Switch - Modification - CANCELLED","slug":"ad-pa-28-32-pitch-trim-switch-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":119811,"registerId":"commonwealth-F2008L01476-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-28 Series Aeroplanes","sectionType":"division","heading":"Piper PA-28 Series Aeroplanes","content":"### Piper PA-28 Series Aeroplanes\n\n| AD/PA-28/32 | Pitch Trim Switch - Modification | 6/2008 |\n| ----------- | -------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                        |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 5 June 2008.                                                                                                                                                                                                                                                                              |\n| Background:  | This Directive specified Piper SB No. 332 which called for once-only modification of the electric trim switch on the control wheel. This Directive was based on US Directive 72-17-05. This Directive and 72-17-05 required compliance within 200 hours after July 1971 so the unsafe condition no longer exists. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n24 April 2008","sortOrder":0},{"sectionNumber":"AD/PA-28/32","sectionType":"part","heading":"AD/PA-28/32","content":"## AD/PA-28/32","sortOrder":1},{"sectionNumber":"Pitch Trim Switch - Modification","sectionType":"part","heading":"Pitch Trim Switch - Modification","content":"## Pitch Trim Switch - Modification","sortOrder":2},{"sectionNumber":"6/2008","sectionType":"part","heading":"6/2008","content":"## 6/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1681},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument does not expand the scope of the legislation; rather, it terminates the Airworthiness Directive entirely. The legal effect is the removal of the trim switch modification requirement from the Commonwealth aviation safety rules."},"complexity_factors":["Extremely short text (approximately 50 words of operative content)","No defined terms, cross-references, or conditional logic","Single operative provision (cancellation) with brief historical context","No exceptions, schedules, or procedural requirements"],"plain_english_summary":"**What this does:** This document formally cancels an old aviation safety rule (Airworthiness Directive AD/PA-28/32) that required owners of **Piper PA-28 aircraft** (Cherokee, Warrior, and Archer models) to modify the electric trim switch on the control wheel.\n\n**Why it matters:** The original rule was issued in the early 1970s to fix a potentially unsafe condition with the pitch trim switches. The deadline to comply was 200 flight hours after July 1971. Because that was nearly 40 years ago, every affected aircraft has long since been modified or retired from service. By formally cancelling the directive, the Civil Aviation Safety Authority (CASA) is cleaning up the rulebook to remove outdated requirements that are no longer relevant.\n\n**Who it affects:** Aircraft owners and maintenance engineers who work on Piper PA-28 series aeroplanes. In practice, nobody needs to take any action—the cancellation simply recognises that the safety issue resolved itself decades ago."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-32-pitch-trim-switch-modification-cancelled","history":"/api/acts/ad-pa-28-32-pitch-trim-switch-modification-cancelled/history","analysis":"/api/acts/ad-pa-28-32-pitch-trim-switch-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-28-32-pitch-trim-switch-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-28-32-pitch-trim-switch-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-28-32-pitch-trim-switch-modification-cancelled/documents"}}