{"id":"F2010L02491","name":"AD/A320/143 Amdt 2 - Fuel Tank Electrical Bonding","slug":"ad-a320-143-amdt-2-fuel-tank-electrical-bonding","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":84419,"registerId":"commonwealth-F2010L02491-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Airbus Industrie A319, A320 and A321 Ser","sectionType":"division","heading":"Airbus Industrie A319, A320 and A321 Series Aeroplanes","content":"### Airbus Industrie A319, A320 and A321 Series Aeroplanes\n\n| AD/A320/143 Amdt 2 | Fuel Tank Electrical Bonding | 19/2010 |\n| ------------------ | ---------------------------- | ------- |\n\n| Applicability: | All A319 and A320 series aeroplanes without either Airbus modification 31888 embodied during production or Airbus Service Bulletin (SB) A320-28-1103 dated 14 June 2002 incorporated whilst in service.                                         |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Modify the aeroplane by incorporating improved electrical bonding in the fuel tanks in accordance with SB A320-28-1103 Revision 1 dated 1 April 2003 or later approved revision.Note: DGAC AD F-2002-476 R1 refers.                             |\n| Compliance:    | Remains unchanged as before 31 December 2007.                                                                                                                                                                                                   |\n|                | This Amendment becomes effective on 17 September 2010.                                                                                                                                                                                          |\n| Background:    | Insufficient electrical bonding may, in certain conditions such as lightning strike or static charge accumulation, lead to electrical arcing inside the fuel tanks that could result in ignition of fuel vapours causing a fuel tank explosion. |\n|                | The original issue of this Directive required the addition of improved electrical bonding.                                                                                                                                                      |\n|                | Amendment 1 introduced additional bonding requirements for aircraft that had yet to incorporate SB A320-28-1103 Revision 1.                                                                                                                     |\n|                | This amendment approves the use of later revisions of SB A320-28-1103.                                                                                                                                                                          |\n|                | The original issue of this Airworthiness Directive became effective on 31 October 2002.Amendment 1 of this Airworthiness Directive became effective on 15 April 2004.                                                                           |\n\n![](image.001.png)\n\nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n16 September 2010","sortOrder":0},{"sectionNumber":"AD/A320/143 Amdt 2","sectionType":"part","heading":"AD/A320/143 Amdt 2","content":"## AD/A320/143 Amdt 2","sortOrder":1},{"sectionNumber":"Fuel Tank Electrical Bonding","sectionType":"part","heading":"Fuel Tank Electrical Bonding","content":"## Fuel Tank Electrical Bonding","sortOrder":2},{"sectionNumber":"19/2010","sectionType":"part","heading":"19/2010","content":"## 19/2010","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":4,"scope_assessment":{"changed":false,"description":"Amendment 2 does not broaden the AD's applicability or add new mandatory tasks; it approves the use of later approved revisions of SB A320-28-1103 while leaving the original requirement and applicability unchanged. Compliance timing is stated as unchanged."},"complexity_factors":["Technical safety-critical work: requires modification of fuel-tank electrical bonding (Background; Requirement).","Applicability check: operators must confirm whether mod 31888 was embodied during production or SB A320-28-1103 was already incorporated (Applicability).","Revision control: mandates SB A320-28-1103 Revision 1 or a later approved revision, creating a need to verify and document approved SB revision levels (Requirement; Amendment).","Regulatory tracing: cross-references prior ADs and a DGAC AD, so compliance requires following historical amendment history (Background; Note).","Operational impact: work must be scheduled and performed by certificated maintenance providers, creating aircraft downtime and direct costs for operators (Requirement).","Effective date and compliance history: amendment effective date differs from original AD dates, so record-keeping and version control are required (Compliance; Amendment effective date)."],"plain_english_summary":"This Airworthiness Directive requires operators of Airbus A319/A320/A321 aeroplanes that have not received production modification 31888 or service bulletin (SB) A320-28-1103 to upgrade fuel-tank electrical bonding by incorporating SB A320-28-1103 Revision 1 or a later approved revision. It affects aircraft operators and maintenance organisations who must schedule and carry out the SB. The amendment approves the use of later SB revisions; the safety rationale is to reduce the risk of electrical arcing and fuel-vapour ignition in the tanks."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope of requiring improved fuel tank electrical bonding. The only change is procedural — allowing use of later approved revisions of the referenced service bulletin rather than locking operators to a specific revision. The safety objective and affected aircraft population remain unchanged."},"complexity_factors":["Short, single-purpose directive (approximately 300 words)","Only 2 defined technical references (Airbus modification 31888 and Service Bulletin A320-28-1103)","Simple conditional applicability (aircraft without X or Y)","Single compliance action with reference to external technical standard","No nested exceptions or complex conditional logic","Clear cross-reference to French aviation authority (DGAC) directive for context"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of certain Airbus A319/A320/A321 aircraft that lack Airbus mod 31888 or the June 2002 repair to install improved electrical bonding inside fuel tanks to prevent lightning or static-induced sparks and potential fuel-tank explosions. Compliance deadline remains 31 December 2007; this amendment (effective 17 September 2010) simply allows use of later approved revisions of Service Bulletin A320-28-1103."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-143-amdt-2-fuel-tank-electrical-bonding","history":"/api/acts/ad-a320-143-amdt-2-fuel-tank-electrical-bonding/history","analysis":"/api/acts/ad-a320-143-amdt-2-fuel-tank-electrical-bonding/analysis","conflicts":"/api/acts/ad-a320-143-amdt-2-fuel-tank-electrical-bonding/conflicts","importantCases":"/api/acts/ad-a320-143-amdt-2-fuel-tank-electrical-bonding/important-cases","documents":"/api/acts/ad-a320-143-amdt-2-fuel-tank-electrical-bonding/documents"}}