{"id":"F2006B06912","name":"AD/SD3-60/67 - Fuel Tank Bonding and Inspection","slug":"ad-sd3-60-67-fuel-tank-bonding-and-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114792,"registerId":"commonwealth-F2006B06912-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\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 CASR 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 aircraft or 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.\n\n![](image.001.png)  \n\nShort SD3-60 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/SD3-60/67 Fuel Tank Bonding and Inspe","sectionType":"part","heading":"AD/SD3-60/67 Fuel Tank Bonding and Inspection 11/2004","content":"# AD/SD3-60/67 Fuel Tank Bonding and Inspection 11/2004\n\nDM\n\nApplicability: All model SD3-60 aeroplanes.\n\nRequirement: 1. Insert Shorts Flight Manual Advance Amendment Bulletin1/2004 or later EASA approved revision in the Aircraft Flight Manual.\n\n    2. Perform the following tasks in accordance with Shorts Service Bulletin (SB) SD 360-28-23 initial issue dated June 2004 or later EASA approved revision:\n\n    Carry out an insulation resistance check of the fuel tank float switches in accordance with Section 2 Part A of the SB.\n\n    b. Inspect the condition of the Fuel Quantity Gauging System sensor cables and the cable supports inside the fuel tanks in accordance with Section 2 Part B of the SB.\n\n    c. Inspect the integrity of the existing bonding of the 2 off vent pipes inside cell 2 of the forward fuel tank in accordance with Section 2 Part C of the SB.\n\n    d. Install new bonding jumper wires between the forward and aft fuel tank vent pipes and the aircraft structure in accordance Section 2 Part D of the SB.\n\n    3. Rectify any defect identified as a result of performing the tasks specified in Requirement 2.\n\n    4. Compliance with section 5-20-01 and 5-20-02 of the Aircraft Maintenance Manual introduced Aircraft maintenance Manual (AMM) Temporary Revisions TR360-AMM-33 and TR330-AMM-34 dated Juny 2004 (or later approved AMM revision) is mandatory.\n\nNote: CAA(UK) AD G-2004-0021 (EASA Approval 2004-9032) refers.\n\nCompliance: For Requirement 1 \\- Within one month after the effective date of this Directive. For Requirement 2 \\- Within six months after the effective date of this Directive For Requirement 3 - Prior to further flight.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The Directive applies to \"All model SD3-60 aeroplanes\" and prescribes specific inspection, bonding and documentation actions with defined deadlines. The text does not indicate a change in applicability or an expansion/narrowing of scope relative to the referenced CAA(UK) AD; it implements corrective actions and procedural requirements for the specified fleet."},"complexity_factors":["Technical electrical testing: insulation resistance check of fuel-tank float switches (Requirement 2 Part A).","Access and inspection work inside fuel tanks: sensor-cable and cable-support inspections (Requirement 2 Part B).","Bonding work: inspection of existing vent-pipe bonding and installation of new bonding jumper wires between tanks and structure (Requirement 2 Parts C & D).","Mandatory Flight Manual amendment insertion with short deadline (Requirement 1; Compliance: within one month).","Mandatory incorporation of AMM temporary revisions and specific AMM sections (Requirement 4).","Dependence on external technical documents and approvals: Shorts Service Bulletin SD 360-28-23 and later EASA-approved revisions (Requirement 2).","Staged compliance windows (one month, six months, and rectification prior to further flight) creating scheduling and potential downtime constraints (Compliance and Requirement 3).","Obligation to rectify any defects before further flight, creating a direct safety-enforcement trigger (Requirement 3; Compliance)."],"plain_english_summary":"Requires all Short SD3-60 aeroplane operators to insert a Flight Manual amendment and to carry out fuel-tank electrical checks, sensor-cable and vent-pipe bonding inspections, install bonding jumpers, and rectify defects. It references Shorts Service Bulletin SD 360-28-23 and AMM temporary revisions; timings are 1 month for the Flight Manual amendment, six months for inspections/installation, and rectification before further flight. Compliance requires operators to bear costs of Flight Manual amendments, specialist labour for inspections and bonding work, and potential aircraft downtime during the six‑month compliance window."},"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":4,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope — addressing a specific unsafe condition in the fuel tank bonding system of SD3-60 aircraft. The document references related foreign directives but does not expand beyond the original safety purpose."},"complexity_factors":["Multiple cross-references to external technical documents (Shorts Service Bulletin SD 360-28-23, EASA approved revisions, Aircraft Maintenance Manual temporary revisions)","Four distinct technical requirements with different compliance timeframes (1 month vs 6 months vs 'prior to further flight')","Specific reference to foreign aviation authority documentation (CAA(UK) AD G-2004-0021, EASA Approval 2004-9032)","Technical aviation terminology requiring specialised knowledge (bonding jumper wires, insulation resistance, float switches, fuel quantity gauging system)","Conditional compliance structure where Requirement 3 depends on findings from Requirement 2"],"plain_english_summary":"This CASA Airworthiness Directive requires owners, operators and maintainers of Short SD3‑60 aeroplanes to promptly address defects in fuel‑tank bonding and inspection systems. It mandates a flight‑manual safety bulletin and time‑limited inspections, bonding repairs and follow‑on maintenance actions to ensure vent pipes, wiring and tank components are properly earthed and intact. The aim is to eliminate electrical fault risks that could spark a fuel‑tank fire or explosion."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sd3-60-67-fuel-tank-bonding-and-inspection","history":"/api/acts/ad-sd3-60-67-fuel-tank-bonding-and-inspection/history","analysis":"/api/acts/ad-sd3-60-67-fuel-tank-bonding-and-inspection/analysis","conflicts":"/api/acts/ad-sd3-60-67-fuel-tank-bonding-and-inspection/conflicts","importantCases":"/api/acts/ad-sd3-60-67-fuel-tank-bonding-and-inspection/important-cases","documents":"/api/acts/ad-sd3-60-67-fuel-tank-bonding-and-inspection/documents"}}