{"id":"F2010L00125","name":"AD/CESSNA 750/5 - Reset Circuit Breakers - Replacement","slug":"ad-cessna-750-5-reset-circuit-breakers-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":122855,"registerId":"commonwealth-F2010L00125-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 750 (Citation X) Series Aeroplane","sectionType":"division","heading":"Cessna 750 (Citation X) Series Aeroplanes","content":"### Cessna 750 (Citation X) Series Aeroplanes\n\n| AD/CESSNA 750/5 | Reset Circuit Breakers - Replacement | 1/2010 |\n| --------------- | ------------------------------------ | ------ |\n\n| Applicability: | Model 750 aeroplanes with serial numbers -0001 to -0100 inclusive.                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with FAA AD 2002-23-05 Amendment 39-12949.Note: Cessna Service Bulletins SB750-24-15, dated 7 May, 1999, and SB750-24-15 Revision 1, dated 24 May, 1999 also refer.                                                                                                                                                                                                                                                                                                                                                       |\n| Compliance:    | Unless already accomplished, as specified in Requirement document.                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |\n|                | This Airworthiness Directive becomes effective on 28 January 2010.                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |\n| Background:    | This AD is prompted by a report to the FAA by the aeroplane manufacturer indicating that the trip levels for the reset circuit breakers installed in the auxiliary hydraulic pump system and the King KHF 950 high frequency system(s) are too high, which can prevent corresponding high current remote control circuit breakers from tripping when excessive loads are present. The actions specified by this AD are intended to prevent overloading of the affected aeroplane electrical wiring and circuits, which could result in a fire. |\n\n![](image.001.png)\n\nMike Higgins  \nDelegate of the Civil Aviation Safety Authority\n\n13 January 2010","sortOrder":0},{"sectionNumber":"AD/CESSNA 750/5","sectionType":"part","heading":"AD/CESSNA 750/5","content":"## AD/CESSNA 750/5","sortOrder":1},{"sectionNumber":"Reset Circuit Breakers - Replacement","sectionType":"part","heading":"Reset Circuit Breakers - Replacement","content":"## Reset Circuit Breakers - Replacement","sortOrder":2},{"sectionNumber":"1/2010","sectionType":"part","heading":"1/2010","content":"## 1/2010","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — a specific safety fix for a specific aircraft model and serial number range. There is no evidence of scope creep; it addresses exactly the electrical fire risk described in the background."},"complexity_factors":["Very short document (approximately 200 words of substantive content)","Only 1 defined applicability criterion (serial number range)","Single requirement referencing external technical documents rather than spelling out procedures","No nested exceptions or conditional logic — simple 'unless already accomplished' compliance trigger","No internal cross-references within the instrument itself","Background provides clear safety rationale without legal complexity"],"plain_english_summary":"This AD mandates replacement of specific reset circuit breakers on Cessna 750 Citation X jets (S/N 0001–0100) because their trip levels are too high and can allow electrical overloads and fire. Affected owners/operators must comply with FAA AD 2002‑23‑05 and Cessna SB750‑24‑15 (Rev 1). Issued by CASA delegate Mike Higgins; effective 28 Jan 2010."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive applies as stated to serial numbers -0001 to -0100 and requires compliance with the referenced FAA AD and Cessna service bulletins. The instrument does not indicate any expansion or narrowing of scope beyond those specifications."},"complexity_factors":["Narrow applicability to specific serial numbers (-0001 to -0100) limits affected fleet but requires serial checks (Applicability).","Technical nature of remedy: physical replacement of reset circuit breakers in auxiliary hydraulic pump and King KHF 950 HF system(s) requires qualified maintenance (Background; Requirement).","Cross-reference to external instruments: mandates action \"in accordance with FAA AD 2002-23-05\" and Cessna Service Bulletins SB750-24-15 and its Revision (Requirement).","Clear safety consequence (electrical overload/fire) driving mandatory compliance increases urgency and inspection burden (Background).","Administrative logistics: effective date (28 January 2010), record-keeping, parts procurement and labour costs borne by operators (Compliance).","Regulatory authority shown by CASA delegate signature; limited administrative discretion visible in text (signature/issuance block)."],"plain_english_summary":"This Airworthiness Directive requires operators of Cessna 750 (Citation X) aeroplanes serial numbers -0001 to -0100 to replace certain reset circuit breakers because their trip levels may be too high and could prevent overcurrent breakers from tripping, risking wiring overload and fire (Background; Applicability). The Civil Aviation Safety Authority (by delegate) mandates compliance with FAA AD 2002-23-05 and referenced Cessna service bulletins; operators pay for and arrange the maintenance by the effective date (Requirement; Compliance)."},"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-cessna-750-5-reset-circuit-breakers-replacement","history":"/api/acts/ad-cessna-750-5-reset-circuit-breakers-replacement/history","analysis":"/api/acts/ad-cessna-750-5-reset-circuit-breakers-replacement/analysis","conflicts":"/api/acts/ad-cessna-750-5-reset-circuit-breakers-replacement/conflicts","importantCases":"/api/acts/ad-cessna-750-5-reset-circuit-breakers-replacement/important-cases","documents":"/api/acts/ad-cessna-750-5-reset-circuit-breakers-replacement/documents"}}