{"id":"F2006B02364","name":"AD/AMD 20/25 - Wing to Fuselage Upper Fairings","slug":"ad-amd-20-25-wing-to-fuselage-upper-fairings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41594,"registerId":"commonwealth-F2006B02364-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AMD 20/25 - Wing to Fuselage Upper Fairings","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nAMD Fan Jet Falcon (Falcon 20/Mystere-Falcon 200) Series Aeroplanes\n\nAD/AMD 20/25 Wing to Fuselage Upper Fairings 7/96\n\nApplicability: Fan Jet Falcon, Mystere Falcon 20-(x)5 and Mystere Falcon 20 GF aircraft, all serial numbers.\n\nRequirement: Unless already accomplished, check for damage to, and the security of, the wing to fuselage upper fairings, and add cup washers below the screw heads of the vertical seam screws of the wing to fuselage upper fairings in accordance with Maintenance Manual DMD 11752 procedure 53-50-0 § 3.\n\nNote: DGAC AD 96-092-021 refers.\n\nCompliance: Before 31 January 1997 or within 330 hours time in service after 20 June 1996, whichever occurs first; thereafter, inspect at intervals not exceeding six months or 300 hours time in service, whichever occurs first.\n\nBackground: This Directive is issued with the intent of preventing the loss of wing to fuselage upper fairings.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2156},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope focused solely on preventing the loss of wing-to-fuselage upper fairings on specific Falcon aircraft models. It has not expanded beyond this specific airworthiness safety issue."},"complexity_factors":["Reference to external technical maintenance manual (DMD 11752) requiring specialized aviation knowledge","Dual calculation method for initial compliance (calendar date versus flight hours)","Ongoing recurring inspection obligations","Cross-reference to French aviation authority directive (DGAC AD 96-092-021)"],"plain_english_summary":"This Airworthiness Directive imposes mandatory safety requirements on operators of specific Dassault Falcon 20 series business jets (Fan Jet Falcon, Mystere Falcon 20-(x)5, and Mystere Falcon 20 GF models).\n\n**What it requires:**\n- **Inspect** the wing-to-fuselage upper fairings (the aerodynamic panels covering the joint where the wing meets the aircraft body) for damage and to ensure they are securely attached\n- **Modify** the fairings by installing cup washers (concave washers that improve load distribution) beneath the screw heads on the vertical seams, following the specific procedure in Maintenance Manual DMD 11752\n- **Comply by** the earlier of: 31 January 1997, or within 330 flight hours after 20 June 1996\n- **Continue inspecting** these fairings every 6 months or 300 flight hours thereafter\n\n**Why it matters:**\nThe rule prevents these panels from detaching during flight, which could damage the aircraft or endanger people and property below."}},"importantCases":[],"_links":{"self":"/api/acts/ad-amd-20-25-wing-to-fuselage-upper-fairings","history":"/api/acts/ad-amd-20-25-wing-to-fuselage-upper-fairings/history","analysis":"/api/acts/ad-amd-20-25-wing-to-fuselage-upper-fairings/analysis","conflicts":"/api/acts/ad-amd-20-25-wing-to-fuselage-upper-fairings/conflicts","importantCases":"/api/acts/ad-amd-20-25-wing-to-fuselage-upper-fairings/important-cases","documents":"/api/acts/ad-amd-20-25-wing-to-fuselage-upper-fairings/documents"}}