{"id":"F2006B05358","name":"AD/P68/32 - Longitudinal Trim System","slug":"ad-p68-32-longitudinal-trim-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45903,"registerId":"commonwealth-F2006B05358-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/P68/32 - Longitudinal Trim System","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Partenavia P68 Series Aeroplanes\n\n \n\nAD/P68/32 Longitudinal Trim System 9/89 DM\n\nApplicability: All models.\n\n \n\nRequirement: Check the stabilator trim system and adjust as necessary to the requirements specified in the aircraft Maintenance Manual.\n\n \n\nCompliance: Within 25 hours time in service after 12 July 1989 and thereafter every 50 hours time in service.\n\n \n\nBackground: This aircraft has a long history of trim related problems. Those and a recent Authority test programme have highlighted certain deficiencies within the trim system. Only a high level of maintenance integrity will ensure continued safe operation of the trim system in it’s current configuration. Further action is being discussed with the manufacturer.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1004},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains tightly focused on its original purpose of addressing stabilator trim system deficiencies in Partenavia P68 aircraft through mandated recurring inspections."},"complexity_factors":["Single, unambiguous requirement with no subsections or alternatives","No defined terms requiring interpretation","Straightforward compliance timeframe with no conditional triggers or exceptions","No cross-references to other legislative instruments or regulatory parts","Limited applicability (single aircraft type series only)"],"plain_english_summary":"**What this is:** An Airworthiness Directive (mandatory safety instruction) for Partenavia P68 series aircraft regarding the longitudinal trim system — the controls that help keep the plane flying level without constant pressure on the stick.\n\n**What it requires:** Aircraft owners or operators must inspect and adjust the stabilator trim system (the rear movable surface that controls pitch) according to the aircraft's Maintenance Manual specifications.\n\n**When to do it:**\n- First check: Within 25 hours of flying time after 12 July 1989\n- Ongoing: Every 50 hours of flying time after that\n\n**Why it exists:** These aircraft have a history of trim system problems. Testing by the safety authority found deficiencies that could affect flight safety. The directive ensures regular maintenance catches issues before they become dangerous."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-32-longitudinal-trim-system","history":"/api/acts/ad-p68-32-longitudinal-trim-system/history","analysis":"/api/acts/ad-p68-32-longitudinal-trim-system/analysis","conflicts":"/api/acts/ad-p68-32-longitudinal-trim-system/conflicts","importantCases":"/api/acts/ad-p68-32-longitudinal-trim-system/important-cases","documents":"/api/acts/ad-p68-32-longitudinal-trim-system/documents"}}