{"id":"F2008L02469","name":"AD/PA-31/89 - Elevator Torque Tube Attachment - CANCELLED","slug":"ad-pa-31-89-elevator-torque-tube-attachment-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74417,"registerId":"commonwealth-F2008L02469-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-31 Series Aeroplanes","sectionType":"division","heading":"Piper PA-31 Series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-31/89 | Elevator Torque Tube Attachment | 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 the elevator torque tube attachment in accordance with Piper SB No. 664. The AD required compliance within 100 hours TIS after February 1980, 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\n17 June 2008","sortOrder":0},{"sectionNumber":"AD/PA-31/89","sectionType":"part","heading":"AD/PA-31/89","content":"## AD/PA-31/89","sortOrder":1},{"sectionNumber":"Elevator Torque Tube Attachment","sectionType":"part","heading":"Elevator Torque Tube Attachment","content":"## Elevator Torque Tube Attachment","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":1663},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The instrument eliminates the mandatory inspection requirement entirely, converting an active airworthiness directive with specific compliance obligations into a historical record with no ongoing legal effect for aircraft operators."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms requiring statutory interpretation","No conditional logic, exceptions, or cross-references to other legislation","Historical background provided for context only, creating no new obligations"],"plain_english_summary":"**What this does:** This document officially cancels a previous safety rule (Airworthiness Directive) that required owners of Piper PA-31 aircraft to perform a once-only inspection of the elevator torque tube attachment—a component that helps control the aircraft's up-and-down movement (pitch).\n\n**Who it affects:** Owners and operators of Piper PA-31 series aeroplanes. However, this cancellation is purely administrative because the original inspection had to be completed by 1980 or within 100 flight hours after February 1980.\n\n**Why it matters:** The Civil Aviation Safety Authority is removing outdated rules from the books. Since every affected aircraft would have completed this inspection decades ago, the directive is obsolete. This cancellation formally ends a legal obligation that has already been satisfied by all operators for nearly 30 years."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-89-elevator-torque-tube-attachment-cancelled","history":"/api/acts/ad-pa-31-89-elevator-torque-tube-attachment-cancelled/history","analysis":"/api/acts/ad-pa-31-89-elevator-torque-tube-attachment-cancelled/analysis","conflicts":"/api/acts/ad-pa-31-89-elevator-torque-tube-attachment-cancelled/conflicts","importantCases":"/api/acts/ad-pa-31-89-elevator-torque-tube-attachment-cancelled/important-cases","documents":"/api/acts/ad-pa-31-89-elevator-torque-tube-attachment-cancelled/documents"}}