{"id":"F2008L02637","name":"AD/PA-31/83 Amdt 1 - Oil And Manifold Pressure Tubes - Inspection - CANCELLED","slug":"ad-pa-31-83-amdt-1-oil-and-manifold-pressure-tubes-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74672,"registerId":"commonwealth-F2008L02637-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-31 Series Aeroplanes","sectionType":"division","heading":"Piper PA-31 Series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-31/83 Amdt 1 | Oil and Manifold Pressure Tubes - Inspection | 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 inspection of oil and manifold pressure tubes in accordance with Piper SB No. 643A. The AD required compliance within 100 hours TIS after March 1981. All affected aircraft have now been inspected. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n13 June 2008","sortOrder":0},{"sectionNumber":"AD/PA-31/83 Amdt 1","sectionType":"part","heading":"AD/PA-31/83 Amdt 1","content":"## AD/PA-31/83 Amdt 1","sortOrder":1},{"sectionNumber":"Oil and Manifold Pressure Tubes - Inspec","sectionType":"part","heading":"Oil and Manifold Pressure Tubes - Inspection","content":"## Oil and Manifold Pressure Tubes - Inspection","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":2520},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This amendment does not expand the scope of the legislation; it terminates the instrument entirely because its regulatory purpose has been fulfilled (all affected aircraft have been inspected)."},"complexity_factors":["Single page cancellation notice with no operative provisions","No definitions or interpretation clauses","No cross-references to other legislation beyond historical context","No conditional logic or exceptions","Minimal legislative text consisting primarily of background explanation"],"plain_english_summary":"This cancels Airworthiness Directive PA‑31/83, which required a one‑time inspection of engine oil and manifold pressure tubes on Piper PA‑31 (Navajo/Chieftain) aircraft. The inspection requirement is now obsolete because all affected airplanes have completed it.\n\nOwners/operators of Piper PA‑31s no longer must track or report compliance with that specific AD, though other maintenance obligations still apply."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-83-amdt-1-oil-and-manifold-pressure-tubes-inspection-cancelled","history":"/api/acts/ad-pa-31-83-amdt-1-oil-and-manifold-pressure-tubes-inspection-cancelled/history","analysis":"/api/acts/ad-pa-31-83-amdt-1-oil-and-manifold-pressure-tubes-inspection-cancelled/analysis","conflicts":"/api/acts/ad-pa-31-83-amdt-1-oil-and-manifold-pressure-tubes-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-pa-31-83-amdt-1-oil-and-manifold-pressure-tubes-inspection-cancelled/important-cases","documents":"/api/acts/ad-pa-31-83-amdt-1-oil-and-manifold-pressure-tubes-inspection-cancelled/documents"}}