{"id":"F2010L00069","name":"AD/SF340/109 - Ceiling and Lavatory Fluorescent Lights","slug":"ad-sf340-109-ceiling-and-lavatory-fluorescent-lights","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":122750,"registerId":"commonwealth-F2010L00069-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"SAAB SF340 Series Aeroplanes","sectionType":"division","heading":"SAAB SF340 Series Aeroplanes","content":"### SAAB SF340 Series Aeroplanes\n\n| AD/SF340/109 | Ceiling and Lavatory Fluorescent Lights | 1/2010 |\n| ------------ | --------------------------------------- | ------ |\n\n| Applicability: | Model 340B aeroplanes serial numbers 340B-342, -359 through -394, -396 through-404 and -406.                                                                                                                                                                                                                 |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | Unless previously accomplished, inspect, rework and, if necessary, replace the fluorescent lamp holders in accordance with SAAB Service Bulletin 340-33-040 Revision 01 dated 29 January 1997 or later revision approved by the Swedish Luftfartsverket (LFV) or the European Aviation Safety Agency (EASA). |\n|                | Note 1: This may have been previously accomplished in accordance with AD/SF340/54, LFV SAD 1-103, LFV SAD 1-103R1, FAA AD 97-13-06 Amdt39-10052 or FAA AD 2000-16-09 Amdt 39-11864.                                                                                                                          |\n|                | Note 2: LFV SAD 1-103R1 refers.                                                                                                                                                                                                                                                                              |\n| Compliance:    | Within six calendar months after the effective date of this Directive.                                                                                                                                                                                                                                       |\n|                | This Airworthiness Directive becomes effective on 11 January 2010.                                                                                                                                                                                                                                           |\n| Background:    | This Directive results from a routine review of airworthiness directives for SAAB 340 model aeroplanes. The review discovered that all references to the inspection, rework and replacement of the ceiling and lavatory fluorescent lamp holders had been removed from AD/SF340/54 Amdts 1 and 2.            |\n|                | This Directive re-establishes the requirement to inspect, rework and, if necessary, the replacement of the ceiling and lavatory fluorescent lamp holders.                                                                                                                                                    |\n\n![](image.001.png)\n\nMike Higgins  \nDelegate of the Civil Aviation Safety Authority\n\n5 January 2010","sortOrder":0},{"sectionNumber":"AD/SF340/109","sectionType":"part","heading":"AD/SF340/109","content":"## AD/SF340/109","sortOrder":1},{"sectionNumber":"Ceiling and Lavatory Fluorescent Lights","sectionType":"part","heading":"Ceiling and Lavatory Fluorescent Lights","content":"## Ceiling and Lavatory Fluorescent Lights","sortOrder":2},{"sectionNumber":"1/2010","sectionType":"part","heading":"1/2010","content":"## 1/2010","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive restores the inspection/rework/replacement requirement that had been removed from AD/SF340/54 (Background). It does not expand applicability beyond the listed SAAB 340B serial numbers and therefore returns scope to the earlier, intended requirement rather than changing it."},"complexity_factors":["Narrow applicability to specific serial numbers, requiring operators to check applicability against their fleet (Applicability).","Mandated use of an external maintenance document (SAAB Service Bulletin 340-33-040 Rev 01) or a later LFV/EASA‑approved revision creates dependency on that document and regulator approvals (Requirement).","Action language—'inspect, rework and, if necessary, replace'—requires technical judgment by maintenance organisations about when replacement is necessary (Requirement).","Cross-references and historical compliance notes increase traceability work for operators checking whether the task was already done under earlier directives (Note 1; Note 2).","Fixed compliance window of six calendar months imposes a timetable and scheduling burden on operators and maintenance providers (Compliance).","The directive restores a previously removed requirement, so operators need to reconcile records against prior ADs to determine outstanding work (Background)."],"plain_english_summary":"This directive requires owners/operators of specified SAAB 340B aeroplanes (listed serial numbers) to inspect, rework and, if necessary, replace ceiling and lavatory fluorescent lamp holders using SAAB Service Bulletin 340-33-040 Rev 01 or an LFV/EASA‑approved later revision. Compliance is required within six calendar months of the directive’s effective date; operators pay for and arrange the maintenance."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific maintenance requirement for fluorescent light fittings in a limited subset of SAAB 340B aircraft. The directive explicitly states it is restoring a requirement that was inadvertently removed from a prior AD, not expanding regulatory reach."},"complexity_factors":["Single, specific technical requirement (inspect/rework/replace lamp holders)","Only 1 defined applicability criterion (specific serial number ranges)","Straightforward compliance timeline (6 months from effective date)","Minimal cross-referencing (only to prior ADs and SAAB Service Bulletin for technical method)","No nested exceptions or conditional logic — work is either already done or must be done","Short document (approximately 250 words of substantive content)"],"plain_english_summary":"This AD mandates inspection, repair and replacement as necessary of ceiling and lavatory fluorescent light fittings on specified SAAB 340B aeroplanes (serials 340B‑342, ‑359–394, ‑396–404, ‑406). It restores a safety requirement that was accidentally omitted from a prior revision, preventing light failures or related hazards. Actions were required within six months of 11 January 2010; work already done under earlier ADs noted in the directive is not required again."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-sf340-109-ceiling-and-lavatory-fluorescent-lights","history":"/api/acts/ad-sf340-109-ceiling-and-lavatory-fluorescent-lights/history","analysis":"/api/acts/ad-sf340-109-ceiling-and-lavatory-fluorescent-lights/analysis","conflicts":"/api/acts/ad-sf340-109-ceiling-and-lavatory-fluorescent-lights/conflicts","importantCases":"/api/acts/ad-sf340-109-ceiling-and-lavatory-fluorescent-lights/important-cases","documents":"/api/acts/ad-sf340-109-ceiling-and-lavatory-fluorescent-lights/documents"}}