{"id":"F2008L02481","name":"AD/PA-31/42 Amdt 2 - Airspeed Placard - Installation - CANCELLED","slug":"ad-pa-31-42-amdt-2-airspeed-placard-installation-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74426,"registerId":"commonwealth-F2008L02481-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-31 Series Aeroplanes","sectionType":"division","heading":"Piper PA-31 Series Aeroplanes","content":"### Piper PA-31 Series Aeroplanes\n\n| AD/PA-31/42 Amdt 2 | Airspeed Placard - Installation | 8/2008 |\n| ------------------ | ------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                        |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 31 July 2008.                                                                                                                                                                                                                                             |\n| Background:  | This unique Australian AD required once-only installation of a cockpit placard in accordance with Piper SB No. 478 (PA-31P) or SB No. 544 (PA-31-325). The AD required compliance within 100 hours TIS after May 1977 so all affected aircraft would have been modified long ago. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n13 June 2008","sortOrder":0},{"sectionNumber":"AD/PA-31/42 Amdt 2","sectionType":"part","heading":"AD/PA-31/42 Amdt 2","content":"## AD/PA-31/42 Amdt 2","sortOrder":1},{"sectionNumber":"Airspeed Placard - Installation","sectionType":"part","heading":"Airspeed Placard - Installation","content":"## Airspeed Placard - Installation","sortOrder":2},{"sectionNumber":"8/2008","sectionType":"part","heading":"8/2008","content":"## 8/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2234},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The regulatory scope has been eliminated—the original safety requirement for placard installation has been completely cancelled rather than amended, reducing the legislation to nil effect."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or interpretation section","No conditional logic, exceptions, or operative cross-references","Extremely short length"],"plain_english_summary":"This document officially cancels a previous aviation safety rule (Airworthiness Directive) that required owners of Piper PA-31 series aeroplanes to install a specific airspeed placard in the cockpit.\n\n**What the old rule required:**\nThe original directive mandated a one-time installation of a cockpit placard according to manufacturer service bulletins (Piper SB No. 478 or SB No. 544). Aircraft owners originally had to complete this within 100 hours of flight time after May 1977.\n\n**Why it was cancelled:**\nThe Civil Aviation Safety Authority cancelled this requirement because it had become obsolete. Since the compliance deadline passed decades earlier, all affected aircraft would have been modified long before this cancellation took effect.\n\n**Who is affected:**\nOwners and operators of Piper PA-31 series aircraft. No action is required—this cancellation simply removes an outdated rule from the books."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-42-amdt-2-airspeed-placard-installation-cancelled","history":"/api/acts/ad-pa-31-42-amdt-2-airspeed-placard-installation-cancelled/history","analysis":"/api/acts/ad-pa-31-42-amdt-2-airspeed-placard-installation-cancelled/analysis","conflicts":"/api/acts/ad-pa-31-42-amdt-2-airspeed-placard-installation-cancelled/conflicts","importantCases":"/api/acts/ad-pa-31-42-amdt-2-airspeed-placard-installation-cancelled/important-cases","documents":"/api/acts/ad-pa-31-42-amdt-2-airspeed-placard-installation-cancelled/documents"}}