{"id":"F2006B09878","name":"AD/F50/50 - Windshield Wiper System","slug":"ad-f50-50-windshield-wiper-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55000,"registerId":"commonwealth-F2006B09878-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/F50/50 - Windshield Wiper System","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 F50 (F27 Mk 50) Series Aeroplanes\n\n \n\nAD/F50/50 Windshield Wiper System 1/92\n\nApplicability: Model F27 MK 050 series with serial numbers 20213 through 20227. Requirement:  Action in accordance with the technical requirements of RLD AD 91-130.\n\nNote: Fokker SB F50-30-016 refers.\n\n \n\nCompliance: As specified in the requirement document with a revised effective date of 12 January 1991 for Australian Registered Aircraft.\n\n \n\nBackground:  This Directive requires the windshield Piper system to be modified as it does not meet the specifications of the vendor.\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 directive’s scope is limited and specific: it applies only to Model F27 Mk 50 series aeroplanes with serial numbers 20213–20227 and requires modification per an external technical document (Applicability; Requirement). Nothing in the text indicates an expansion or narrowing of that original scope beyond referencing the technical requirement and a related Fokker service bulletin (Requirement; Note)."},"complexity_factors":["Narrow and specific applicability (only serial numbers 20213–20227) reduces scope complexity (Applicability).","The AD does not contain technical instructions itself but cross-references RLD AD 91-130, requiring operators to obtain and follow an external technical document (Requirement).","A related Fokker service bulletin is cited, adding another external source operators may need to consult (Note).","Compliance timing is specified (revised effective date 12 January 1991), so there is a deadline to manage (Compliance).","Operational complexity arises from scheduling modification work and securing parts/technical support, but these are practical/administrative rather than legal complexity (implicit from Requirement/Compliance)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Fokker F27 Mk 50 aeroplanes serials 20213–20227 to modify their windshield wiper systems to meet vendor specifications, carried out exactly per the technical instructions in RLD AD 91-130 (with related Fokker SB F50-30-016). It places costs, downtime and compliance responsibility on those operators and depends on the availability and clarity of the referenced technical documents."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete technical airworthiness directive addressing a specific mechanical defect in a limited aircraft population. It has not expanded beyond its original narrow safety purpose."},"complexity_factors":["Extremely short document (under 200 words)","Only 1 defined applicability criterion (serial number range)","Single requirement referencing external technical document (RLD AD 91-130)","No conditional logic, exceptions, or nested provisions","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Straightforward compliance date with no alternative methods or phased implementation"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for specific Fokker F50 aircraft.\n\n**What it does:**\n- Requires owners/operators of certain Fokker F50 planes (serial numbers 20213 through 20227) to modify their **windshield wiper systems**\n- The modification is needed because the current system doesn't meet the manufacturer's original specifications\n\n**Who it affects:**\n- Operators of Australian-registered Fokker F50 aircraft with serial numbers 20213-20227\n- Specifically references Dutch aviation authority requirements (RLD AD 91-130) and a Fokker service bulletin (SB F50-30-016)\n\n**Why it matters:**\n- Windshield wipers are critical for pilot visibility during rain\n- Non-compliant systems could impair visibility and compromise flight safety\n- Compliance became mandatory from **12 January 1991** for Australian aircraft\n\n**Key point:** This is a technical maintenance requirement, not a law that creates new legal rights or obligations beyond aviation safety compliance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f50-50-windshield-wiper-system","history":"/api/acts/ad-f50-50-windshield-wiper-system/history","analysis":"/api/acts/ad-f50-50-windshield-wiper-system/analysis","conflicts":"/api/acts/ad-f50-50-windshield-wiper-system/conflicts","importantCases":"/api/acts/ad-f50-50-windshield-wiper-system/important-cases","documents":"/api/acts/ad-f50-50-windshield-wiper-system/documents"}}