{"id":"F2006B06857","name":"AD/SD3-60/14 - Tailplane Attachment Fitting Bushes","slug":"ad-sd3-60-14-tailplane-attachment-fitting-bushes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114735,"registerId":"commonwealth-F2006B06857-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SD3-60/14 - Tailplane Attachment Fitting Bushes","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)  Short SD3-60 Series Aeroplanes\n\n \n\nAD/SD3-60/14 Tailplane Attachment Fitting Bushes 1/86\n\nApplicability: All Models.\n\n \n\nRequirement: Action in accordance with Shorts SB SD360-55-10. Compliance:  Prior to 31 March 1986.\n\nBackground: Interference fit bushes have been found loose in the tailplane attachment fittings.\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":2,"scope_assessment":{"changed":false,"description":"The AD as published applies to all Short SD3-60 models and requires the action described in Shorts SB SD360-55-10 to be completed by the stated date. The text contains no indication that the scope of affected aircraft or required action was altered from the AD's stated requirements."},"complexity_factors":["Narrow technical scope: single issue identified (loose interference-fit bushes in tailplane attachment fittings). (Background)","Single-method reference: corrective action is by reference to one manufacturer Service Bulletin (Shorts SB SD360-55-10). (Requirement)","Clear deadline: one fixed compliance date is specified (Prior to 31 March 1986). (Compliance)","Broad applicability but simple remit: applies to all models of the SD3-60 series (Applicability: All Models) yet directs a single remedial action","Limited procedural complexity in the AD text itself: the AD omits detailed procedures, costs, alternative compliance routes or exemptions, deferring those to the service bulletin (Requirement)"],"plain_english_summary":"This Airworthiness Directive (AD) affects the Short SD3-60 series aeroplanes. Mechanically, it requires that the corrective action set out in the manufacturer's Service Bulletin (Shorts SB SD360-55-10) be carried out on all SD3-60 aeroplanes. The specified deadline for completing that action is “Prior to 31 March 1986.” (Applicability: All Models; Requirement: Action in accordance with Shorts SB SD360-55-10. Compliance: Prior to 31 March 1986.)\n\nWhy it was issued: the AD records that \"interference fit bushes have been found loose in the tailplane attachment fittings.\" (Background.) The AD therefore directs operators to follow the service bulletin to address that condition.\n\nWho it affects and who must act: the AD applies to all Short SD3-60 models (Applicability: All Models). The AD text itself requires action per the Shorts service bulletin; the AD does not specify in‑text who bears the direct cost of the work or the detailed procedure — it refers the reader to the service bulletin for the technical steps (Requirement: see Shorts SB SD360-55-10).\n\nWhat is and isn't specified in the directive: the AD specifies the affected fleet, the corrective action reference (the service bulletin), and the compliance deadline. It records the technical reason for the AD (loose interference-fit bushes). The AD does not state the parts, labour times, cost allocation, aircraft downtime, alternative compliance methods, or exemptions — those details are left to the referenced service bulletin or other procedural documents.\n\nPractical implications and implementation points to note (based on the text):\n- The AD makes compliance with the manufacturer's service bulletin mandatory for the specified fleet by the stated date. (Requirement; Compliance.)\n- Detailed technical instructions and likely the step‑by‑step corrective measures are contained in Shorts SB SD360-55-10, which the AD invokes. (Requirement.)\n- The stated safety reason is the discovery of loose interference‑fit bushes in the tailplane attachment fittings. (Background.)\n\nWhere to look next: the AD directs operators to Shorts SB SD360-55-10 for the required corrective action; that service bulletin is the source of technical and procedural detail needed to comply."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive addressing a specific mechanical defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating inspection/repair of tailplane attachment bushes."},"complexity_factors":["Extremely short document (approximately 150 words)","No defined terms section — all language is technical but self-explanatory to aviation professionals","Single, unambiguous requirement referencing an external technical document (Shorts SB SD360-55-10)","No conditional logic, exceptions, or nested provisions","Clear applicability statement ('All Models') with no exclusions","Single compliance deadline with no alternative methods or phased implementation"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:** It requires owners and operators of **Short SD3-60 series aircraft** (a type of regional turboprop plane) to inspect and fix a specific mechanical problem with the **tailplane attachment fitting bushes**.\n\n**The problem:** The \"interference fit bushes\" (metal sleeves that should be tightly pressed into the tailplane attachment fittings) have been found **loose**. This is serious because the tailplane (the horizontal stabiliser at the back of the aircraft) is critical for controlling the plane's pitch (up and down movement). Loose fittings could lead to loss of control.\n\n**What must be done:** Operators must follow the manufacturer's Service Bulletin (Shorts SB SD360-55-10) to address the issue.\n\n**Deadline:** The work must be completed **before 31 March 1986**.\n\n**Who it affects:** Anyone who owns, operates, or maintains Short SD3-60 aircraft in Australia.\n\n**Why it matters:** This is a **safety-critical** order. Non-compliance means the aircraft cannot legally fly in Australian airspace until the defect is rectified."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sd3-60-14-tailplane-attachment-fitting-bushes","history":"/api/acts/ad-sd3-60-14-tailplane-attachment-fitting-bushes/history","analysis":"/api/acts/ad-sd3-60-14-tailplane-attachment-fitting-bushes/analysis","conflicts":"/api/acts/ad-sd3-60-14-tailplane-attachment-fitting-bushes/conflicts","importantCases":"/api/acts/ad-sd3-60-14-tailplane-attachment-fitting-bushes/important-cases","documents":"/api/acts/ad-sd3-60-14-tailplane-attachment-fitting-bushes/documents"}}