{"id":"F2006B10963","name":"AD/JETSTREAM/97 Amdt 1 - Fuselage and Wing Structure Fatigue Damage - 1","slug":"ad-jetstream-97-amdt-1-fuselage-and-wing-structure-fatigue-damage-1","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56533,"registerId":"commonwealth-F2006B10963-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/JETSTREAM/97 Amdt 1 - Fuselage and Wing Structure Fatigue Damage - 1","content":"![](image.001.png)\n\n![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\nOn the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/JETSTREAM/97 and issues the following 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\nBritish Aerospace BAe 3100 (Jetstream) Series Aeroplanes\n\nAD/JETSTREAM/97\n\nAmdt 1\n\n  \n\nFuselage and Wing Structure Fatigue Damage - 1\n\n  \n10/2004\n\nApplicability: All Model Jetstream Series 3200 aircraft.\n\nRequirement: Inspect in accordance with BAE Systems Mandatory Service Bulletin (SB) 51- JA020940 Revision 1 or later EASA approved edition.\n\nThe original issue of the Requirement document contained a typographical error. If a detailed visual inspection was performed with the windows removed then full credit can be taken for the accomplishment of the initial inspection. If a detailed visual inspection was performed with the windows installed, the clarified NDI task stated in Revision 1 of the Requirement document, Appendix 1, Paragraph M, Part 14, must be performed before 1 July 2005. Thereafter, all subsequent window pan inspections are to be accomplished on or before the repeat interval stated in the Requirement document.\n\nNote: UK CAA AD G-2004-0017 refers.\n\nCompliance: At the initial and repeat inspection times specified in the Requirement document.\n\nNew requirements introduced by SB 51-JA020940 Revision 1, are stated in Paragraph M \\- Approval, Appendix 2, Part 1. For the tasks defined in SB 51-020940 Revision 1, Appendix 1, Paragraph M, Parts 14 and 15, where the initial inspection interval is stated as 25,800 landings or 10 years, the requirement: whichever occurs first, is to apply. Where the repeat inspection interval is stated as: 4,400 landings or 2 years, the requirement: whichever occurs first, is to apply. Where the inspection interval is stated as: 4,400 landings or D check, this is to be read as: 4,400 landings or 2 years, whichever occurs first.\n\nThis Amendment becomes effective on 30 September 2004.\n\nBackground: An extensive review of the results of the wing fatigue test and aircraft life extension investigation has been completed for Jetstream 3200 aircraft. This Directive introduces new and revised inspections of the fuselage and wing structure for fatigue damage.\n\nBritish Aerospace BAe 3100 (Jetstream) Series Aeroplanes\n\nAD/JETSTREAM/97 Amdt 1 (continued)\n\nAmendment 1 is issued in response to a new CAA AD, which introduces a revision of the Requirement document with revised inspection techniques deemed necessary to adequately accomplish certain inspection tasks, and to specify grace periods applicable for aircraft that have exceeded the initial inspection thresholds.\n\n![Signature of David Villiers Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 5 August 2004\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 8 September 2004.","sortOrder":0}],"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":6,"scope_assessment":{"changed":true,"description":"Yes. This amendment revokes AD/JETSTREAM/97 and widens/revises the inspection regime by adopting BAE SB 51-JA020940 Revision 1 (Requirement). It (a) adds or clarifies NDI tasks and a deadline for windows‑installed inspections (Requirement: paragraph on typographical error and Appendix 1, Paragraph M, Part 14), (b) sets explicit initial and repeat intervals expressed as landings or years with 'whichever occurs first' applied to specified tasks and reinterprets 'D check' as 2 years (Compliance paragraph), and (c) requires use of EASA‑approved editions of the SB (Requirement). Practical effects: operators bear the inspection and repair costs and scheduling burdens (Applicability; Requirement; Compliance); CASA (the delegate) enforces compliance under CASR 1998 subreg 39.1(1) (preamble/signature)."},"complexity_factors":["Cross-reference to an external service bulletin: BAE SB 51-JA020940 Revision 1 (Requirement) and requirement for later EASA‑approved editions (Requirement).","Conditional credit and corrective action depending on whether windows were removed during prior inspections (Requirement: typographical error clarification).","Multiple inspection intervals expressed as combinations of landings and years with 'whichever occurs first' logic (Compliance; paragraph on intervals).","Conversion/interpretation rule for 'D check' to a 2‑year interval (Compliance paragraph).","Addition of specific NDI tasks with a hard deadline (must be performed before 1 July 2005) creating a short grace period (Requirement).","Dependence on foreign regulator action: notes reference to UK CAA AD G-2004-0017 and EASA approval (Note; Requirement).","Fleet-level monitoring burden: applies to all Model Jetstream Series 3200 aircraft (Applicability).","Regulatory mechanics: revocation and reissuance under CASA delegate authority (subreg 39.1(1) of CASR 1998) creates administrative discretion (preamble/signature)."],"plain_english_summary":"This amendment replaces the previous Jetstream AD and requires all British Aerospace Jetstream 3200 operators to carry out fuselage and wing fatigue inspections per BAE Systems Mandatory Service Bulletin 51-JA020940 Revision 1 (or later EASA‑approved edition). It clarifies a prior typo, adds non‑destructive inspection (NDI) tasks and grace periods, and sets specific initial and repeat inspection timing.\n\nOperators must schedule and pay for the additional inspections and any repairs; CASA enforces compliance under CASR 1998."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"The legislation maintains its original scope as a safety directive for Jetstream 3200 aircraft structural inspections. Amendment 1 refines and clarifies existing requirements rather than expanding into new operational areas."},"complexity_factors":["Multiple cross-references to external technical documents (BAE Systems Service Bulletin 51-JA020940 Revision 1, UK CAA AD G-2004-0017)","Conditional logic for inspection credit based on whether windows were removed or installed during prior inspections","Nested timing requirements with 'whichever occurs first' conditions (landings vs. years vs. D check)","Amendment structure requires understanding of what changed from the original AD and why","Technical aviation terminology (NDI, D check, landings-based intervals) assumes industry knowledge"],"plain_english_summary":"This mandatory Airworthiness Directive replaces the earlier AD for British Aerospace Jetstream 3200 aeroplanes and requires fuselage and wing fatigue inspections per BAE Systems Mandatory Service Bulletin 51-JA020940 Rev 1 (or later). The update corrects a typo, clarifies that detailed inspections with windows removed satisfy the initial check, and requires an additional non‑destructive inspection if windows were left in place before 1 July 2005. It sets landing- and time‑based inspection thresholds and applies to Australian operators to prevent structural fatigue failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-jetstream-97-amdt-1-fuselage-and-wing-structure-fatigue-damage-1","history":"/api/acts/ad-jetstream-97-amdt-1-fuselage-and-wing-structure-fatigue-damage-1/history","analysis":"/api/acts/ad-jetstream-97-amdt-1-fuselage-and-wing-structure-fatigue-damage-1/analysis","conflicts":"/api/acts/ad-jetstream-97-amdt-1-fuselage-and-wing-structure-fatigue-damage-1/conflicts","importantCases":"/api/acts/ad-jetstream-97-amdt-1-fuselage-and-wing-structure-fatigue-damage-1/important-cases","documents":"/api/acts/ad-jetstream-97-amdt-1-fuselage-and-wing-structure-fatigue-damage-1/documents"}}