{"id":"F2006B09797","name":"AD/F28/62 - Aileron Dual Input Quadrant Bracket","slug":"ad-f28-62-aileron-dual-input-quadrant-bracket","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54718,"registerId":"commonwealth-F2006B09797-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/F28/62 - Aileron Dual Input Quadrant Bracket","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)  Fokker F28 Series Aeroplanes\n\n \n\nAD/F28/62 Aileron Dual Input Quadrant Bracket 13/90\n\nApplicability: F28 aircraft with S/Nos 11003 through 11241, 11991 and 11992. Requirement:  Action in accordance with Fokker SB F28/27-177.\n\nNote: AD BLA 90-097 refers.\n\n \n\nCompliance: Prior to 30 April 1991, unless previously accomplished.\n\n \n\nBackground: Country of origin AD. Severe pitting corrosion on the mounting brackets has been reported, together with incorrect installation of bushings.\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 directive's scope is narrowly stated in the instrument and limited to specified F28 serial numbers and to the work described in the referenced service bulletin (Applicability; Requirement). The background explanation (corrosion and incorrect bushing installation) matches the operational action required, and there is no indication in the text provided that the scope differs from that operational intent (Background)."},"complexity_factors":["Narrow, specific applicability limited to a small set of aircraft serial numbers (Applicability).","Action is defined by reference to an external technical document (Fokker SB F28/27-177), requiring interpretation by maintenance personnel (Requirement).","Single fixed compliance deadline (Compliance) creates a clear but time‑sensitive obligation.","Technical subject matter (corrosion and bushing installation) requires qualified maintenance capability.","Minimal procedural text in the directive itself — reliance on the service bulletin for operational detail."],"plain_english_summary":"Applies to specific Fokker F28 aircraft (serials 11003–11241, 11991–11992): owners/operators must perform the inspections and corrective work described in Fokker Service Bulletin F28/27-177, addressing severe pitting corrosion on aileron dual input quadrant brackets and incorrect bushing installations.  \n\nWork must be completed by 30 April 1991 (unless already done). The directive creates a one‑time compliance task and is enforced by the Civil Aviation Safety Authority; operators bear cost and scheduling responsibility."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-limited safety directive with a narrow technical scope. It addresses a specific mechanical defect in specific aircraft and does not represent scope creep from any broader legislative intent."},"complexity_factors":["Very short document (under 200 words)","Only one substantive requirement (comply with referenced service bulletin)","Simple applicability clause (specific serial number ranges)","Single compliance deadline with standard exception","No defined terms section","No nested conditional logic or cross-references to other legislation","Background is purely informational"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners and operators of specific Fokker F28 aircraft to inspect and fix a problem with the **aileron dual input quadrant bracket** (a metal part that helps control the plane's wing flaps called ailerons).\n\n**What the problem is:** The mounting brackets can develop severe pitting corrosion (rust that eats small holes into the metal), and the bushings (cylindrical linings that reduce friction) may have been installed incorrectly. Both issues could affect how well the pilots can control the aircraft.\n\n**Who must act:** Anyone operating Fokker F28 aircraft with serial numbers 11003 through 11241, plus two others (11991 and 11992).\n\n**What they must do:** Follow the instructions in Fokker Service Bulletin F28/27-177 (a technical repair notice from the manufacturer).\n\n**When:** Before 30 April 1991, unless the fix was already done.\n\n**Why it matters:** This prevents potential loss of control during flight due to mechanical failure of a critical flight control component."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f28-62-aileron-dual-input-quadrant-bracket","history":"/api/acts/ad-f28-62-aileron-dual-input-quadrant-bracket/history","analysis":"/api/acts/ad-f28-62-aileron-dual-input-quadrant-bracket/analysis","conflicts":"/api/acts/ad-f28-62-aileron-dual-input-quadrant-bracket/conflicts","importantCases":"/api/acts/ad-f28-62-aileron-dual-input-quadrant-bracket/important-cases","documents":"/api/acts/ad-f28-62-aileron-dual-input-quadrant-bracket/documents"}}