{"id":"F2008L04500","name":"AD/PA-30/17 Amdt 1 - Electrical Power Indicators - Modification - CANCELLED","slug":"ad-pa-30-17-amdt-1-electrical-power-indicators-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76534,"registerId":"commonwealth-F2008L04500-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-30 & 39 (Twin Comanche) Series ","sectionType":"division","heading":"Piper PA-30 & 39 (Twin Comanche) Series Aeroplanes","content":"### Piper PA-30 & 39 (Twin Comanche) Series Aeroplanes\n\n| AD/PA-30/17 Amdt 1 | Electrical Power Indicators - Modification | 13/2008 |\n| ------------------ | ------------------------------------------ | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                           |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 18 December 2008.                                                                                                                                                            |\n| Background:  | This unique Australian AD specified installation of an ammeter in each generator feeder line. The AD was not based on a Piper service document. The AD was issued in 1972 and is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n6 November 2008","sortOrder":0},{"sectionNumber":"AD/PA-30/17 Amdt 1","sectionType":"part","heading":"AD/PA-30/17 Amdt 1","content":"## AD/PA-30/17 Amdt 1","sortOrder":1},{"sectionNumber":"Electrical Power Indicators - Modificati","sectionType":"part","heading":"Electrical Power Indicators - Modification","content":"## Electrical Power Indicators - Modification","sortOrder":2},{"sectionNumber":"13/2008","sectionType":"part","heading":"13/2008","content":"## 13/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1420},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs exactly the explicit function stated—it formally terminates a superseded airworthiness directive. It does not expand, restrict, or otherwise alter the regulatory scope beyond the straightforward cancellation of the previous AD."},"complexity_factors":["Single-page instrument with no defined terms or interpretation sections","No cross-references to other legislation or regulations","Unconditional cancellation with no exceptions, conditions or transitional provisions","Plain language background statement requiring no technical legal knowledge to understand"],"plain_english_summary":"**This document scraps an old aircraft safety rule.**\n\nThe Civil Aviation Safety Authority (CASA) has formally cancelled Airworthiness Directive (AD) AD/PA-30/17, a technical requirement that had been in place since 1972.\n\n**What was the old rule?**\nThe cancelled directive required owners of **Piper PA-30 and PA-39 Twin Comanche** aeroplanes to install an **ammeter** (an electrical current gauge) in each generator feeder line. This was a unique Australian requirement that was not based on the aircraft manufacturer's official service bulletins.\n\n**Why is it being cancelled?**\nCASA determined this specific electrical modification is no longer necessary for flight safety. The cancellation took effect on **18 December 2008**.\n\n**Who does this affect?**\nOwners, operators and maintenance engineers of Piper PA-30 and PA-39 aircraft. They are no longer legally required to install or maintain the specific ammeter configuration mandated by the 1972 directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-30-17-amdt-1-electrical-power-indicators-modification-cancelled","history":"/api/acts/ad-pa-30-17-amdt-1-electrical-power-indicators-modification-cancelled/history","analysis":"/api/acts/ad-pa-30-17-amdt-1-electrical-power-indicators-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-30-17-amdt-1-electrical-power-indicators-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-30-17-amdt-1-electrical-power-indicators-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-30-17-amdt-1-electrical-power-indicators-modification-cancelled/documents"}}