{"id":"F2006B05679","name":"AD/PA-30/5 Amdt 2 - Installation of Vne Placard and Stabilator - Modification","slug":"ad-pa-30-5-amdt-2-installation-of-vne-placard-and-stabilator-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135431,"registerId":"commonwealth-F2006B05679-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-30/5 Amdt 2 - Installation of Vne Placard and Stabilator - Modification","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)  Piper PA-30 & 39 (Twin Comanche) Series Aeroplanes\n\n \n\nAD/PA-30/5\n\nAmdt 2\n\n\nInstallation of Vne Placard and Stabilator - Modification\n\n\n8/67\n\n \n\nApplicability: Model PA-30 with S/Nos. 853 and 902 to 1253.\n\n \n\nRequirement: Rebalance the stabilator in accordance with Piper SB No. 229A and placard the airspeed indicator to show a never exceed speed (Vne) of 206 Kts. IAS.\n\n \n\nCompliance Forthwith.\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\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific airframe modification. It has not expanded beyond its original safety purpose."},"complexity_factors":["Extremely short document (under 200 words)","Only 2 substantive requirements (rebalance stabilator, install placard)","Single applicability criterion (specific serial number range)","No defined terms section","No cross-references to other legislation (only references Piper Service Bulletin 229A, which is external technical documentation)","No conditional logic or exceptions","Simple imperative language ('Requirement', 'Compliance')"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA).\n\n**What it does:**\nIt requires owners or operators of specific Piper PA-30 Twin Comanche aircraft to make two safety modifications:\n- **Rebalance the stabilator** (the moveable tail surface that controls pitch) following Piper Service Bulletin 229A\n- **Install a new placard** on the airspeed indicator showing a maximum never-exceed speed (Vne) of 206 knots indicated airspeed\n\n**Who it affects:**\nOwners and operators of Piper PA-30 aircraft with serial numbers 853 and 902 through 1253.\n\n**Why it matters:**\nThe stabilator (think of it as the \"elevator\" on the tail) needs rebalancing to ensure the aircraft handles safely. The new speed limit placard prevents pilots from flying too fast and risking structural damage or loss of control. The directive uses the word \"Forthwith\" — meaning **do this immediately**, not when convenient.\n\n**In short:** If you own one of these specific Piper twins, you must get this safety work done right away before the aircraft can fly legally."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This instrument is labelled as Amendment 2 (Amdt 2), which indicates it amends a previously issued airworthiness directive. The text provided does not state what differed from the original AD, so the specific changes introduced by this amendment cannot be determined from this document alone. The operative requirements in this text are the stabilator rebalance per Piper SB No. 229A and the Vne 206 Kts IAS placard, with immediate effect (Applicability; Requirement; Compliance)."},"complexity_factors":["Narrow, clearly defined applicability (specific model and serial numbers) reduces scope complexity (Applicability).","Single, straightforward technical requirement: rebalance per a named service bulletin and add a placard (Requirement).","Dependence on an external technical document (Piper SB No. 229A) adds moderate implementation detail and reliance on manufacturer instructions (Requirement).","Immediate compliance timing (“Forthwith”) creates scheduling pressure but not legal ambiguity (Compliance).","Lack of procedural detail in the AD about certification, inspection records or post-modification checks shifts those decisions to existing regulatory/maintenance processes, adding some practical uncertainty."],"plain_english_summary":"This Airworthiness Directive applies to Piper PA‑30s with S/N 853 and 902–1253 and requires, forthwith, rebalance of the stabilator per Piper Service Bulletin No. 229A and installation of a Vne placard showing 206 KIAS. The legal duty falls on registered owners/operators (who pay for parts, labour and inspections) while maintenance organisations perform the work. It mandates a mechanical fix plus an operational speed limit, relies on the manufacturer’s bulletin for technical detail, and leaves little scheduling flexibility."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-30-5-amdt-2-installation-of-vne-placard-and-stabilator-modification","history":"/api/acts/ad-pa-30-5-amdt-2-installation-of-vne-placard-and-stabilator-modification/history","analysis":"/api/acts/ad-pa-30-5-amdt-2-installation-of-vne-placard-and-stabilator-modification/analysis","conflicts":"/api/acts/ad-pa-30-5-amdt-2-installation-of-vne-placard-and-stabilator-modification/conflicts","importantCases":"/api/acts/ad-pa-30-5-amdt-2-installation-of-vne-placard-and-stabilator-modification/important-cases","documents":"/api/acts/ad-pa-30-5-amdt-2-installation-of-vne-placard-and-stabilator-modification/documents"}}