{"id":"F2006B05671","name":"AD/PA-30/3 - Stabilator Torque Tube - Modification","slug":"ad-pa-30-3-stabilator-torque-tube-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135404,"registerId":"commonwealth-F2006B05671-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-30/3 - Stabilator Torque Tube - 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-30/3 Stabilator Torque Tube - Modification 3/65\n\nApplicability: Model PA-30 with S/Nos. 30-1 to 30-565. Document:  1. Piper SB No. 222A; or\n\n2. FAA AD 64-28-3.\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":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The supplied AD is a targeted directive applying to a specific model and serial-number range and references external documents for the technical fix. The text contains no indication that the scope has been broadened or narrowed from an earlier intent; it simply prescribes a mandatory modification for the listed aircraft (Applicability and Document)."},"complexity_factors":["Short, narrowly targeted instrument with limited text (few provisions to interpret).","Relies on external technical documents (Piper SB No. 222A or FAA AD 64-28-3) for procedural detail; those documents must be obtained to implement the AD.","\"Forthwith\" timing is immediate but not numerically specified, introducing operational ambiguity.","Applicability is by serial-number range, requiring record checks to determine whether a given aircraft is affected.","No exemptions, alternative compliance procedures, or cost/compensation provisions are included in the supplied text."],"plain_english_summary":"This AD mandates an immediate modification of the stabilator torque tube on Piper PA‑30 (Twin Comanche) aeroplanes, S/N 30‑1 through 30‑565, to be carried out in accordance with Piper Service Bulletin No. 222A or FAA AD 64‑28‑3.  \n\nIt affects owners/operators and maintenance organisations; compliance is required \"forthwith.\" The directive contains no explanation of rationale, costs, exemptions, or alternative methods."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive from 1965 (as indicated by '3/65' in the identifier). It has not expanded beyond its original narrow purpose of addressing a specific mechanical defect in a limited production run of aircraft. Airworthiness directives are inherently narrow in scope, targeting specific safety issues in specific aircraft types."},"complexity_factors":["Extremely short document (approximately 150 words of substantive content)","Only 2 defined applicability criteria (model and serial number range)","Simple binary compliance requirement (modify per specified documents)","No nested exceptions, conditional logic, or cross-references to other legislation","Single operative requirement with immediate effect","References only external technical documents (service bulletin and FAA AD) rather than complex legislative provisions"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:** It requires owners and operators of specific Piper PA-30 Twin Comanche aircraft (serial numbers 30-1 through 30-565) to modify the **stabilator torque tube** — a critical component that helps control the aircraft's pitch (up and down movement). The modification must be done according to either Piper Service Bulletin No. 222A or an equivalent American Federal Aviation Administration (FAA) directive (AD 64-28-3).\n\n**Who it affects:** Anyone who owns, operates, or maintains the early production Piper PA-30 aircraft with those specific serial numbers.\n\n**Why it matters:** The directive addresses a safety defect in the stabilator control system. The \"Forthwith\" compliance requirement means this modification must be completed immediately before further flight — there is no grace period. This suggests the defect poses an immediate risk to flight safety if left unaddressed.\n\n**Key takeaway:** If you fly or maintain one of these specific aircraft, you cannot legally operate it until this modification is completed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-30-3-stabilator-torque-tube-modification","history":"/api/acts/ad-pa-30-3-stabilator-torque-tube-modification/history","analysis":"/api/acts/ad-pa-30-3-stabilator-torque-tube-modification/analysis","conflicts":"/api/acts/ad-pa-30-3-stabilator-torque-tube-modification/conflicts","importantCases":"/api/acts/ad-pa-30-3-stabilator-torque-tube-modification/important-cases","documents":"/api/acts/ad-pa-30-3-stabilator-torque-tube-modification/documents"}}