{"id":"F2006B06012","name":"AD/PA-44/6 Amdt 1 - Aileron Push Rod Functional Check","slug":"ad-pa-44-6-amdt-1-aileron-push-rod-functional-check","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114410,"registerId":"commonwealth-F2006B06012-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-44/6 Amdt 1 - Aileron Push Rod Functional Check","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-44 (Seminole) Series Aeroplanes\n\n \n\nAD/PA-44/6\n\nAmdt 1\n\n\nAileron Push Rod Functional Check 1/81\n\n \n\nApplicability: All model PA-44-180 with S/Nos. 44-7995001 to 44-8095027. Document:  1. Piper SB No. 689A; or\n\n2. FAA AD 80-21-11 Amdt. 39-3938.\n\n \n\nCompliance: Unless previous inspection in accordance with AD/PA-44/6 indicated no binding of the aileron push rod, within 50 hours time in service after 21 November 1980.\n\n \n\nBackground:  This Directive is raised in issue to require the replacement of the aileron push rods as well as the bellcrank if the push rod is found to be tight or will not rotate throughout the aileron travel.\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 Amendment 1 to an existing Airworthiness Directive. The amendment appears to maintain the original scope — safety inspection of aileron push rods on specific Piper PA-44 aircraft. The amendment likely clarifies or adjusts the compliance requirements (notably adding the exception for aircraft already inspected under the original AD), but does not expand beyond the original safety purpose of ensuring proper aileron control function."},"complexity_factors":["Very short document (approximately 200 words)","Only 4 defined elements: specific aircraft model, serial number range, two reference documents, and a single compliance deadline","No nested conditional logic — only one exception (previous inspection under original AD)","No cross-references to other legislation or regulations beyond the two technical documents","Single operational requirement with straightforward pass/fail outcome"],"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) for specific aircraft.\n\n**What it does:** It requires owners and operators of certain Piper PA-44-180 Seminole aeroplanes (serial numbers 44-7995001 to 44-8095027) to perform a functional check on the aileron push rods — the mechanical linkages that connect the pilot's control yoke to the ailerons (the movable surfaces on the wings that make the plane roll left or right).\n\n**Why it matters:** If the push rod is \"tight\" (binding/sticking) or won't rotate properly as the ailerons move, it must be replaced along with the bellcrank (a pivoting lever in the control system). A binding control rod could restrict or jam the pilot's ability to control the aircraft, potentially causing loss of control.\n\n**Who must comply:** Operators of the affected aircraft must complete this check within 50 hours of flight time after 21 November 1980 — unless they've already done an earlier inspection under the original version of this directive that found no problems.\n\n**Key documents to follow:** Piper Service Bulletin 689A or the equivalent US Federal Aviation Administration AD 80-21-11."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The amendment explicitly requires replacement of the aileron push rods as well as the bellcrank when binding is found. The Background states the Directive is issued to require replacement of the push rods in addition to the bellcrank if the push rod is tight or will not rotate, which represents an expansion of mandatory remedial action compared with an instruction that required only bellcrank replacement. (Background)"},"complexity_factors":["Narrow applicability: specific model and serial number range reduces regulatory breadth (Applicability).","Clear, time-limited compliance requirement: single inspection within 50 hours TIS or reliance on an earlier inspection (Compliance).","Dependency on external technical documents (Piper SB No. 689A; FAA AD 80-21-11) for procedural details increases procedural dependency though not legal complexity (Applicability – Document).","Outcome hinges on a practical inspection judgement (\"tight\" or \"will not rotate\"), introducing some subjectivity in enforcement and implementation (Compliance; Background).","Remedial action is binary and straightforward (replace push rods and bellcrank if binding), limiting procedural branching (Background)."],"plain_english_summary":"This AD applies to Piper PA-44-180 aircraft in the listed serial range and requires an inspection for binding of the aileron push rod within 50 hours TIS of 21 November 1980 (unless a prior qualifying inspection exists). If the push rod is tight or won’t rotate through full travel, the push rods and the bellcrank must be replaced per Piper SB No. 689A or FAA AD 80-21-11.\n\nIt affects owners/operators, maintenance providers, and parts suppliers because it mandates inspection, possible replacement, and associated costs to ensure safe aileron movement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-44-6-amdt-1-aileron-push-rod-functional-check","history":"/api/acts/ad-pa-44-6-amdt-1-aileron-push-rod-functional-check/history","analysis":"/api/acts/ad-pa-44-6-amdt-1-aileron-push-rod-functional-check/analysis","conflicts":"/api/acts/ad-pa-44-6-amdt-1-aileron-push-rod-functional-check/conflicts","importantCases":"/api/acts/ad-pa-44-6-amdt-1-aileron-push-rod-functional-check/important-cases","documents":"/api/acts/ad-pa-44-6-amdt-1-aileron-push-rod-functional-check/documents"}}