{"id":"F2006B01937","name":"AD/A320/47 Amdt 2 - Fuselage - Pressure Floor Between Frames 42 and 43","slug":"ad-a320-47-amdt-2-fuselage-pressure-floor-between-frames-42-and-43","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41159,"registerId":"commonwealth-F2006B01937-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/A320/47 Amdt 2 - Fuselage - Pressure Floor Between Frames 42 and 43","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nAirbus Industrie A319, A320 and A321 Series Aeroplanes\n\nAD/A320/47\n\nAmdt 2\n\n  \n\nFuselage \\- Pressure Floor Between Frames 42 and 43\n\n  \n6/96\n\nApplicability: Serial Numbers 002 to 008, 010 to 014, 016 to 078, 080 to 104, and 106 and 107, without Airbus Industrie SB A320-53-1023 Rev.7 incorporated.\n\nRequirement: Action in accordance with Airbus Industrie SB A320-53-1024 Rev. 2.\n\nNote 1. DGAC AD 92-205-033(B)R2 refers.\n\nNote 2. For aircraft with Airbus Industrie SB A320-53-1025 Rev. 6 or earlier Revisions incorporated, refer to AD/A320/67.\n\nCompliance: Prior to attaining 12 000 flights; thereafter at the intervals specified in the Requirement Document until modified, and this amendment is effective from 23 May 1996.\n\nBackground: During the full scale fatigue test, cracking was experienced in the outer floor beams, box beams, and other associated structure.\n\nAmendment 1 provides relief for operators that have already incorporated SB A320-53-1023 at issues before Revision 3.\n\nAmendment 2 amends the applicability and provides terminating action through Airbus Industrie SB A320-53-1023 Rev. 7.\n\nThe original issue of this AD became effective on 27 April 1995\\. Amendment 1 of this AD became effective on 20 July 1995.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 2 changed the AD's applicability and added a clear terminating action by recognising incorporation of Airbus SB A320‑53‑1023 Rev.7; Amendment 1 had earlier provided relief for operators who incorporated earlier issues of SB A320‑53‑1023. The AD therefore narrows/clarifies which serial-numbered aircraft must follow the SB A320‑53‑1024 Rev.2 actions and provides a specific completion route that ends recurring inspections."},"complexity_factors":["Serial-number-specific applicability list (detailed inclusion/exclusion of individual airframes)","Dependence on multiple service bulletin revisions (A320‑53‑1024 Rev.2 for requirement; A320‑53‑1023 Rev.7 as terminating action; cross-reference to A320‑53‑1025 Rev.6 via AD/A320/67)","Conditional compliance timing (prior to 12,000 flights, then recurring intervals specified in the Requirement Document)","Interaction with prior amendments (Amendment 1 relief and Amendment 2 changes to applicability)","Operational and record-keeping burden on operators to track flight counts and SB incorporation status","Regulatory enforcement under Civil Aviation Regulations Part 39 (administrative compliance mechanisms)"],"plain_english_summary":"This airworthiness directive requires listed Airbus A319/A320/A321 aeroplanes that have not incorporated Service Bulletin (SB) A320‑53‑1023 Rev.7 to carry out the inspections or modifications described in SB A320‑53‑1024 Rev.2 before reaching 12,000 flights and then at the intervals the SB specifies. It responds to fatigue cracking found in the pressure floor between frames 42 and 43; operators pay for the work, the Civil Aviation Safety Authority enforces compliance, and incorporating SB A320‑53‑1023 Rev.7 terminates the repeated inspection requirement."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is Amendment 2 of an existing Airworthiness Directive. The amendments have remained within the original scope — addressing fatigue cracking in the pressure floor structure. Amendment 2 narrows applicability and adds terminating action, but does not expand beyond the original safety purpose."},"complexity_factors":["Short, single-purpose document (1 page)","Limited applicability defined by specific serial number ranges","Cross-references to 3 external documents (French DGAC AD, two Airbus service bulletins, and another Australian AD)","Contains one conditional compliance pathway (terminating action through SB revision)","Amendment history requires tracking of previous versions"],"plain_english_summary":"This CASA Airworthiness Directive mandates inspections and repairs of the pressure floor area between frames 42–43 on certain early-production Airbus A319/A320/A321 aircraft that have not received Service Bulletin A320-53-1023 Rev.7. Inspections must begin before 12,000 flights and continue at intervals until the SB modification is installed.\n\nThe AD prevents fatigue cracks that could cause structural failure or cabin depressurisation; Amendment 2 updates affected aircraft lists and confirms the SB installation as the terminating action."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-47-amdt-2-fuselage-pressure-floor-between-frames-42-and-43","history":"/api/acts/ad-a320-47-amdt-2-fuselage-pressure-floor-between-frames-42-and-43/history","analysis":"/api/acts/ad-a320-47-amdt-2-fuselage-pressure-floor-between-frames-42-and-43/analysis","conflicts":"/api/acts/ad-a320-47-amdt-2-fuselage-pressure-floor-between-frames-42-and-43/conflicts","importantCases":"/api/acts/ad-a320-47-amdt-2-fuselage-pressure-floor-between-frames-42-and-43/important-cases","documents":"/api/acts/ad-a320-47-amdt-2-fuselage-pressure-floor-between-frames-42-and-43/documents"}}