{"id":"F2006B09639","name":"AD/F100/37 - Stabiliser Electrical Bonding","slug":"ad-f100-37-stabiliser-electrical-bonding","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54447,"registerId":"commonwealth-F2006B09639-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/F100/37 Stabiliser Electrical Bonding","sectionType":"part","heading":"AD/F100/37 Stabiliser Electrical Bonding 2/2000","content":"# AD/F100/37 Stabiliser Electrical Bonding 2/2000\n\nApplicability: Model F.28 Mk.0070 and Mk.0100 aeroplanes.\n\nRequirement: Remove the existing bonding jumper between the vertical and horizontal stabiliser and install two new bonding jumpers , Part Number FON9-1981-4CC5, in accordance with Fokker Service Bulletin SBF100-23-032 dated 22 September 1999.\n\nNote: Netherlands RLD AD 1999-128 (A) refers.\n\nCompliance: Within the next 18 calendar months after the effective date of this directive.\n\nThis Airworthiness Directive becomes effective on 24 February 2000.\n\nBackground: The RLD has advised that following a lightning strike incident on a Fokker 100 it was found that the electrical bonding of the horizontal stabiliser did not meet the requirements of military standard MIL-B-5087B. MIL-B-5087B prescribes that each hinge joint should be provided with a bonding jumper.\n\nThis directive introduces new bonding jumpers to bring the electrical bonding of the horizontal stabiliser in line with MIL-B-5087B.\n\n![Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.](image.003.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 17 January 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 27 January 2000.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific technical defect identified after a lightning strike incident. The scope remains precisely limited to the electrical bonding modification for Fokker 100 stabilisers, exactly as intended when issued."},"complexity_factors":["Single, specific aircraft model applicability (F.28 Mk.0070 and Mk.0100 only)","One clear mechanical action required (remove one jumper, install two specific part numbers)","Simple compliance timeframe (18 months from effective date)","No nested conditions, exceptions, or alternative compliance methods","Only one defined term implicitly referenced (MIL-B-5087B military standard, but not defined within the instrument itself)","No cross-references to other legislation beyond a single note about a Netherlands directive"],"plain_english_summary":"This CASA safety order requires owners/operators of Fokker 100 (Mk.0070 and Mk.0100) aircraft to replace the single electrical bonding jumper between tail fins with two jumpers, to meet military electrical safety standards. Completed within 18 months of 24 Feb 2000, the change reduces lightning-related fire or explosion risk to the tail."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive stays within the original safety objective: it mandates a specific bonding modification on identified aircraft models to meet MIL-B-5087B after a lightning‑strike finding (Background; Requirement; Applicability). It does not broaden obligations beyond the described corrective work or expand affected fleet beyond the named models."},"complexity_factors":["Narrow applicability — only Fokker F.28 Mk.0070 and Mk.0100 (Applicability)","Single clear technical action: remove one jumper and install two specified jumpers (Requirement)","Mandated compliance with an external Fokker Service Bulletin (dependency on manufacturer documentation)","Specific part number prescribed (P/N FON9-1981-4CC5) increases procurement precision (Requirement)","Reference to technical standard MIL-B-5087B (Background) introduces a performance benchmark","Fixed compliance timeframe of 18 calendar months creates scheduling pressure for operators (Compliance)","Safety‑critical electrical bonding work requires certified maintenance personnel and shop resources (implied operational/skill burden)"],"plain_english_summary":"This directive requires owners/operators of Fokker F.28 Mk.0070 and Mk.0100 aircraft to remove the existing bonding jumper between the vertical and horizontal stabiliser and fit two new bonding jumpers (P/N FON9-1981-4CC5) in accordance with Fokker Service Bulletin SBF100-23-032. CASA issued the mandate; operators must arrange and pay for the work within 18 calendar months to bring stabiliser electrical bonding into line with MIL-B-5087B after a lightning‑strike revealed non‑conformance. (Requirement; Applicability; Compliance; Background)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-f100-37-stabiliser-electrical-bonding","history":"/api/acts/ad-f100-37-stabiliser-electrical-bonding/history","analysis":"/api/acts/ad-f100-37-stabiliser-electrical-bonding/analysis","conflicts":"/api/acts/ad-f100-37-stabiliser-electrical-bonding/conflicts","importantCases":"/api/acts/ad-f100-37-stabiliser-electrical-bonding/important-cases","documents":"/api/acts/ad-f100-37-stabiliser-electrical-bonding/documents"}}