{"id":"F2008L03698","name":"AD/PA-34/20 - Pneumatic De-Icer Tubing - Inspection - CANCELLED","slug":"ad-pa-34-20-pneumatic-de-icer-tubing-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75403,"registerId":"commonwealth-F2008L03698-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-34 (Seneca) Series Aeroplanes","sectionType":"division","heading":"Piper PA-34 (Seneca) Series Aeroplanes","content":"### Piper PA-34 (Seneca) Series Aeroplanes\n\n| AD/PA-34/20 | Pneumatic De-Icer Tubing - Inspection | 11/2008 |\n| ----------- | ------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                             |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 23 October 2008.                                                                                                                                                                               |\n| Background:  | This unique Australian AD specified inspection of pneumatic de-icer tubing in accordance with Piper SB No. 491. Compliance was required within 100 hours time in service after May 1976. The AD is no longer required. |\n\n![](image.001.png)\n\nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n11 September 2008","sortOrder":0},{"sectionNumber":"AD/PA-34/20","sectionType":"part","heading":"AD/PA-34/20","content":"## AD/PA-34/20","sortOrder":1},{"sectionNumber":"Pneumatic De-Icer Tubing - Inspection","sectionType":"part","heading":"Pneumatic De-Icer Tubing - Inspection","content":"## Pneumatic De-Icer Tubing - Inspection","sortOrder":2},{"sectionNumber":"11/2008","sectionType":"part","heading":"11/2008","content":"## 11/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1941},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument completes the lifecycle of the original directive by cancelling it, rather than expanding the regulatory scope. The original purpose was to mandate safety inspections; this simply terminates that requirement."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No cross-references to other legislation","Straightforward administrative revocation without conditions or exceptions"],"plain_english_summary":"This cancels the rule requiring owners of Piper PA‑34 Seneca aircraft to inspect pneumatic wing/tail de‑icer tubing (per Service Bulletin No. 491) every 100 flight hours.\n\nIt affects Australian‑registered PA‑34 owners/operators — inspections ceased as of 23 October 2008 — removing a regulatory burden because the original safety concern has been addressed or is no longer considered significant."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-34-20-pneumatic-de-icer-tubing-inspection-cancelled","history":"/api/acts/ad-pa-34-20-pneumatic-de-icer-tubing-inspection-cancelled/history","analysis":"/api/acts/ad-pa-34-20-pneumatic-de-icer-tubing-inspection-cancelled/analysis","conflicts":"/api/acts/ad-pa-34-20-pneumatic-de-icer-tubing-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-pa-34-20-pneumatic-de-icer-tubing-inspection-cancelled/important-cases","documents":"/api/acts/ad-pa-34-20-pneumatic-de-icer-tubing-inspection-cancelled/documents"}}