{"id":"F2006B06848","name":"AD/SD3-30/47 - Fuel Tank Bonding and Inspection","slug":"ad-sd3-30-47-fuel-tank-bonding-and-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114717,"registerId":"commonwealth-F2006B06848-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 SD3-30 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/SD3-30/47 Fuel Tank Bonding and Inspe","sectionType":"part","heading":"AD/SD3-30/47 Fuel Tank Bonding and Inspection 11/2004","content":"# AD/SD3-30/47 Fuel Tank Bonding and Inspection 11/2004\n\nDM\n\nApplicability: All model SD3-30 aeroplanes.\n\nRequirement: 1. Insert Shorts Flight Manual Advance Amendment Bulletin1/2004 or later EASA approved revision in the Aircraft Flight Manual (AFM).\n\n    2. Perform the following tasks in accordance with Shorts Service Bulletin (SB) SD 330-28-37 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 TR330-AMM-13 and TR330-AMM-14 dated June 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_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The Directive applies to all SD3‑30 aeroplanes and, as drafted, confines its scope to a flight manual amendment plus specified inspections, bonding installations and mandatory rectification to correct the stated unsafe condition. The text gives no indication that the scope departs from that stated purpose."},"complexity_factors":["Cross-references to external technical documents: Shorts Service Bulletin SD 330-28-37 and AMM Temporary Revisions TR330-AMM-13/TR330-AMM-14 (Requirement 2, Requirement 4).","Multiple discrete technical tasks required: AFM amendment, insulation resistance check, cable/support inspections, bonding integrity inspection, installation of bonding jumper wires (Requirement 1; Requirement 2 a–d).","Mandatory rectification prior to further flight for any defects found (Requirement 3) increases urgency and operational impact.","Short, staggered compliance deadlines: AFM update within 1 month; inspections/works within 6 months; defects rectified before next flight (Compliance).","Dependence on EASA-approved revisions for acceptable documents introduces approval dependency and potential administrative delay (Requirement 2 and Note).","Requires qualified maintenance capability to perform electrical insulation and bonding tasks and to follow SB/AMM procedures (Requirement 2; Requirement 4)."],"plain_english_summary":"This AD requires all **Short SD3‑30** aeroplanes to update the flight manual and to inspect and, where needed, repair or add bonding and wiring inside fuel tanks (per referenced Shorts Service Bulletin and AMM temporary revisions). It applies to aircraft owners/operators and maintenance organisations and matters because it mandates short‑term inspections, bonding installations and remedial work to address a stated unsafe condition in fuel‑tank electrical bonding."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific unsafe condition (fuel tank electrical bonding and inspection) in a specific aircraft type (Short SD3-30). It has not expanded beyond this original safety purpose."},"complexity_factors":["Short, single-purpose directive focused on one aircraft type","Only 4 main requirements with clear, sequential structure","References external technical documents (Service Bulletin, Flight Manual amendments) rather than reproducing complex technical specifications inline","Simple compliance timeline structure (1 month, 6 months, prior to further flight)","Minimal defined terms — relies on standard aviation terminology understood by the target audience (maintenance engineers and operators)","No nested exceptions or conditional logic — requirements apply uniformly to all affected aircraft"],"plain_english_summary":"This AD applies to all Short SD3-30 aeroplanes and mandates safety actions to eliminate a fuel‑tank fire/explosion hazard from electrical faults. Operators must update the flight manual, inspect and repair float switch insulation, tank wiring and vent‑pipe bonding, install new grounding wires, and follow amended maintenance procedures.\n\nIt affects owners, operators and maintainers in Australia and is urgent — some actions are required within one month or six months, and aircraft must be grounded until defects are repaired."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sd3-30-47-fuel-tank-bonding-and-inspection","history":"/api/acts/ad-sd3-30-47-fuel-tank-bonding-and-inspection/history","analysis":"/api/acts/ad-sd3-30-47-fuel-tank-bonding-and-inspection/analysis","conflicts":"/api/acts/ad-sd3-30-47-fuel-tank-bonding-and-inspection/conflicts","importantCases":"/api/acts/ad-sd3-30-47-fuel-tank-bonding-and-inspection/important-cases","documents":"/api/acts/ad-sd3-30-47-fuel-tank-bonding-and-inspection/documents"}}