{"id":"F2006L03189","name":"AD/SD3-30/48 - Fuel Tank Safety - Fuel Airworthiness Limitations","slug":"ad-sd3-30-48-fuel-tank-safety-fuel-airworthiness-limitations","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":60492,"registerId":"commonwealth-F2006L03189-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Short SD3-30 Series Aeroplanes","sectionType":"division","heading":"Short SD3-30 Series Aeroplanes","content":"### Short SD3-30 Series Aeroplanes\n\n| AD/SD3-30/48 | Fuel Tank Safety - FuelAirworthiness Limitations | 11/2006 |\n| ------------ | ------------------------------------------------ | ------- |\n\n| Applicability: | Model SD3-30 aeroplanes, all serial numbers.                                                                                                                                                                                                                                                        |\n| -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Maintenance/Inspection Tasks -                                                                                                                                                                                                                                                                   |\n|                | a. Accomplish the inspections including any necessary rectification action together with the installation of additional electrical bonding as specified in Bombardier Aerospace Shorts Service Bulletin SD330-28-37 dated June 2004 or later EASA approved revision.                                |\n|                | b. Incorporate the fuel system airworthiness limitations specified in Sections5-20-01 and 5-20-02 of the Aircraft Maintenance Manual Publications as introduced by the Temporary Revisions TR330-AMM-35 andTR330-AMM-35detailed into the operator approved maintenance programme/Schedule.          |\n|                | Note 1: Accomplishment of the tasks specified in Requirement 1 is required to ensure that baseline inspections/checks are accomplished. Subsequent repeat inspections/checks shall then be accomplished in accordance with Section 5-20-01 of the AMM at the established repeat intervals.          |\n|                | 2. Critical Design Control Configuration Limitations (CDCCL) - The operator shall ensure that their internal maintenance control documentation is amended to reflect the data contained within Section 5.20.02 of the AMM and to provide appropriate text to highlight the existence of each CDCCL. |\n|                | Note 2: EASA AD 2006-0198 refers.                                                                                                                                                                                                                                                                   |\n| Compliance:    | For Requirement 1 -                                                                                                                                                                                                                                                                                 |\n|                | a. Within six months after the effective date of this Directive.                                                                                                                                                                                                                                    |\n|                | b. Within three months after the effective date of this Directive.                                                                                                                                                                                                                                  |\n|                | For Requirement 2 - Before 1 July 2007.                                                                                                                                                                                                                                                             |\n|                | This Airworthiness Directive becomes effective on 26 October 2006.                                                                                                                                                                                                                                  |\n\n| Background: | Subsequent to accidents involving Fuel Tank System explosions in flight (Boeing 747-131 flight TWA800) and on the ground, the United States Federal Aviation Administration (FAA) published Special Federal Aviation Regulation 88 (SFAR88) in June 2001. SFAR 88 required a safety review of the aircraft Fuel Tank System to determine that the design meets the requirements of FAR § 25.901 and § 25.981(a) and (b).A similar regulation has been recommended by the European Joint Aviation Authorities (JAA) to the European National Aviation Authorities in JAA letter 04/00/02/07/03-L024 of 3 February 2003. The review was requested to be mandated by European National Airworthiness Authorities using JAR § 25.901(c), § 25.1309.In August 2005 the European Aviation Safety Agency (EASA) published a policy statement on the process for developing instructions for maintenance and inspection of Fuel Tank System ignition source prevention (EASA D 2005/CPRO, www.easa.eu.int/home/cert_policy_statements_en.html) that also included the EASA expectations with regard to compliance times of the corrective actions on the unsafe and the not unsafe part of the harmonised design review results. On a global scale the Type certificate (TC) holders committed themselves to the EASA published compliance dates (see EASA policy statement). The EASA policy statement was revised in March 2006 resetting the date of 31 December 2005 for the unsafe related actions to 1 July 2006.Fuel Airworthiness Limitations are items arising from a systems safety analysis that have been shown to have failure mode(s) associated with an ‘unsafe condition’ as defined in FAA Memo 2003-112-15 ‘SFAR 88 - Mandatory Action Decision Criteria’. These are identified in Failure Conditions for which an unacceptable probability of ignition risk could exist if specific tasks and/or practices are not performed in accordance with the manufacturers’ requirements.This Directive mandates the Fuel System Airworthiness Limitations comprising maintenance/inspection tasks and critical design control configuration limitations for SD3-30 series aeroplanes, that resulted from the design reviews and the JAA recommendation and EASA policy statement mentioned above. |\n| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n15 September 2006","sortOrder":0},{"sectionNumber":"AD/SD3-30/48","sectionType":"part","heading":"AD/SD3-30/48","content":"## AD/SD3-30/48","sortOrder":1},{"sectionNumber":"Fuel Tank Safety - FuelAirworthiness Lim","sectionType":"part","heading":"Fuel Tank Safety - FuelAirworthiness Limitations","content":"## Fuel Tank Safety - Fuel  \nAirworthiness Limitations","sortOrder":2},{"sectionNumber":"11/2006","sectionType":"part","heading":"11/2006","content":"## 11/2006","sortOrder":3}],"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"},"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":false,"description":"The Directive implements fuel system airworthiness limitations and CDCCLs for all Model SD3‑30 aeroplanes as derived from prior SFAR88/JAA/EASA reviews. It does not expand the set of affected aircraft beyond that model series or alter the fundamental nature of maintenance obligations; it aligns domestic compliance with the design‑review outcomes and EASA guidance referenced in the background."},"complexity_factors":["Mandates work referenced to external technical documents (Bombardier Service Bulletin SD330-28-37 and AMM Sections 5-20-01 and 5-20-02), which requires operators to obtain and follow those materials.","Requires both physical actions (inspections, rectification, electrical bonding) and administrative changes (incorporation into approved maintenance programme and maintenance control documentation).","Multiple, staggered compliance deadlines (within three or six months for Requirement 1; before 1 July 2007 for Requirement 2).","Reference to Temporary Revisions (TR330-AMM-35) and need to integrate them into operator schedules increases administrative coordination.","Cross‑jurisdictional alignment: the Directive implements outcomes of SFAR88/JAA/EASA policy and refers to EASA AD 2006-0198, creating reliance on foreign regulatory documents and timelines.","Applicability to all serial numbers of a model creates a fleet‑wide compliance obligation rather than case‑by‑case decisions.","Requirement to ‘highlight the existence of each CDCCL’ imposes specific documentation and training requirements to ensure ongoing compliance and auditability."],"plain_english_summary":"This directive requires operators of Short SD3‑30 aeroplanes to carry out specified fuel‑system inspections, any needed repairs and additional electrical bonding per Bombardier Service Bulletin, and to add fuel‑system airworthiness limitations from the Aircraft Maintenance Manual into their approved maintenance program (Requirement 1). Operators must also update internal maintenance control documents to record Critical Design Configuration Control Limitations so those limits are highlighted and enforced (Requirement 2). Operators pay for the work; the regulator enforces the deadlines."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"This AD maintains its original scope. It was always intended to implement international fuel tank safety standards (SFAR 88) for the SD3-30 aircraft type. The directive does not expand beyond its original purpose of mandating fuel system airworthiness limitations and CDCCLs for this specific aircraft model."},"complexity_factors":["Multiple compliance deadlines with different timelines (3 months, 6 months, and a fixed calendar date of 1 July 2007)","Cross-references to external documents: Bombardier service bulletin SD330-28-37, EASA AD 2006-0198, FAA SFAR 88, and specific sections of the Aircraft Maintenance Manual (Sections 5-20-01, 5-20-02, Temporary Revisions TR330-AMM-35)","Technical aviation terminology requiring specialised knowledge (CDCCL, electrical bonding, airworthiness limitations, type certificate)","Nested requirements: Requirement 1 has sub-parts (a) and (b), with Note 1 adding ongoing obligations for repeat inspections","Regulatory layering: Implements international standards from FAA, EASA, and JAA into Australian law","Conditional logic in Note 1 establishing baseline inspections versus ongoing repeat inspections"],"plain_english_summary":"This Airworthiness Directive requires all operators and maintainers of Short SD3-30 series aeroplanes to carry out mandatory fuel-system safety work to prevent fuel-tank explosions (motivated by lessons from TWA Flight 800). \n\nIt turns manufacturer recommendations into legally enforceable actions — inspections, added electrical bonding, binding airworthiness‑limitation tasks and CDCCLs — with firm compliance deadlines, making these fuel‑system protections obligatory rather than optional."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sd3-30-48-fuel-tank-safety-fuel-airworthiness-limitations","history":"/api/acts/ad-sd3-30-48-fuel-tank-safety-fuel-airworthiness-limitations/history","analysis":"/api/acts/ad-sd3-30-48-fuel-tank-safety-fuel-airworthiness-limitations/analysis","conflicts":"/api/acts/ad-sd3-30-48-fuel-tank-safety-fuel-airworthiness-limitations/conflicts","importantCases":"/api/acts/ad-sd3-30-48-fuel-tank-safety-fuel-airworthiness-limitations/important-cases","documents":"/api/acts/ad-sd3-30-48-fuel-tank-safety-fuel-airworthiness-limitations/documents"}}