{"id":"F2008L03272","name":"AD/PA-22/12 - Tailplane Actuating Jack - Inspection - CANCELLED","slug":"ad-pa-22-12-tailplane-actuating-jack-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75390,"registerId":"commonwealth-F2008L03272-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-22 (Tri-Pacer and Colt) Series ","sectionType":"division","heading":"Piper PA-22 (Tri-Pacer and Colt) Series Aeroplanes","content":"### Piper PA-22 (Tri-Pacer and Colt) Series Aeroplanes\n\n| AD/PA-22/12 | Tailplane Actuating Jack - Inspection | 10/2008 |\n| ----------- | ------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 25 September 2008.                                                                                                                                                                                                                |\n| Background:  | This unique Australian AD specified inspection of the tailplane actuating jack at intervals of 100 hours time in service. This AD was not based on a Piper service document. This routine maintenance task no longer warrants an Airworthiness Directive. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n11 August 2008","sortOrder":0},{"sectionNumber":"AD/PA-22/12","sectionType":"part","heading":"AD/PA-22/12","content":"## AD/PA-22/12","sortOrder":1},{"sectionNumber":"Tailplane Actuating Jack - Inspection","sectionType":"part","heading":"Tailplane Actuating Jack - Inspection","content":"## Tailplane Actuating Jack - Inspection","sortOrder":2},{"sectionNumber":"10/2008","sectionType":"part","heading":"10/2008","content":"## 10/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1023},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs exactly the stated function: it cancels Airworthiness Directive AD/PA-22/12. The scope is strictly limited to removing the previous mandatory inspection requirement for the tailplane actuating jack on Piper PA-22 aircraft."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No cross-references to other legislation","Minimal length (effectively one sentence of legal effect)","No conditional logic, exceptions, or procedural steps"],"plain_english_summary":"**What this does:** This document officially cancels a previous aviation safety rule that required owners of specific Piper aircraft to inspect the **tailplane actuating jack** (the mechanical device that adjusts the horizontal tail surface) every 100 hours of flight time.\n\n**Who it affects:** Owners and operators of **Piper PA-22 Tri-Pacer and Colt** series aeroplanes registered in Australia.\n\n**Why it matters:** If you own one of these planes, you are no longer legally required to perform this specific inspection every 100 hours. The Civil Aviation Safety Authority (CASA) decided this maintenance task was routine enough that it didn't need to be mandated by an Airworthiness Directive (a legally binding safety instruction). You should still follow your aircraft's maintenance manual for recommended servicing, but this particular inspection is no longer compulsory."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-22-12-tailplane-actuating-jack-inspection-cancelled","history":"/api/acts/ad-pa-22-12-tailplane-actuating-jack-inspection-cancelled/history","analysis":"/api/acts/ad-pa-22-12-tailplane-actuating-jack-inspection-cancelled/analysis","conflicts":"/api/acts/ad-pa-22-12-tailplane-actuating-jack-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-pa-22-12-tailplane-actuating-jack-inspection-cancelled/important-cases","documents":"/api/acts/ad-pa-22-12-tailplane-actuating-jack-inspection-cancelled/documents"}}