{"id":"F2006L03615","name":"AD/BEECH 300/19 - Passenger Seat Modification","slug":"ad-beech-300-19-passenger-seat-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":137301,"registerId":"commonwealth-F2006L03615-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Beechcraft 300 Series Aeroplanes","sectionType":"division","heading":"Beechcraft 300 Series Aeroplanes","content":"### Beechcraft 300 Series Aeroplanes\n\n| AD/BEECH 300/19 | Passenger Seat Modification | 12/2006 |\n| --------------- | --------------------------- | ------- |\n\n| Applicability: | Raytheon Beechcraft model B300 aircraft, serial numbers FL-1 through FL-289,FL-292, FL-295 and FL-297.                                                                                                                                                                                                                                                                                                                               |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | 1. Accomplish the requirements of Raytheon Aircraft Company Service Bulletin SB-25-3640, Revision 1, revised January 2006, or later approved issue.2. Remove the TSO label on each cabin seat and re-identify each modified cabin seat assembly with the new P/N in accordance with Raytheon Aircraft Company Service Bulletin SB-25-3640, Revision 1, revised January 2006, or later approved issue.Note: FAA AD 2006-19-09 refers. |\n| Compliance:    | 1. For requirement 1, within 24 calendar months or 600 hours TIS, whichever occurs first after the effective date.2. For requirement 2, before further flight after accomplishment of requirement 1.                                                                                                                                                                                                                                 |\n|                | This Airworthiness Directive becomes effective on 23 November 2006.                                                                                                                                                                                                                                                                                                                                                                  |\n| Background:    | This Airworthiness Directive is the result of the cabin passenger seats not meeting the design load requirements during structural load testing for design changes. The actions specified in this Airworthiness Directive are intended to prevent the passenger seats from failing during emergency landing conditions when high inertial loadings occur. Passenger seat failure could result in occupant injury.                    |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n12 October 2006","sortOrder":0},{"sectionNumber":"AD/BEECH 300/19","sectionType":"part","heading":"AD/BEECH 300/19","content":"## AD/BEECH 300/19","sortOrder":1},{"sectionNumber":"Passenger Seat Modification","sectionType":"part","heading":"Passenger Seat Modification","content":"## Passenger Seat Modification","sortOrder":2},{"sectionNumber":"12/2006","sectionType":"part","heading":"12/2006","content":"## 12/2006","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive targeting a specific safety defect in specific aircraft. The scope remains tightly focused on the original safety issue identified — passenger seat structural integrity during emergency conditions."},"complexity_factors":["Very short document (approximately 250 words)","Only 2 substantive requirements with clear sequential ordering","Single defined applicability criterion (specific aircraft serial numbers)","Simple temporal compliance structure (24 months OR 600 hours TIS — 'Time In Service')","Single cross-reference to FAA AD 2006-19-09 (informational only)","No nested exceptions, conditional logic, or interpretive provisions","Clear, unambiguous operative language ('Accomplish', 'Remove', 're-identify')"],"plain_english_summary":"This CASA Airworthiness Directive mandates owners/operators of specified Raytheon Beechcraft B300 serials to modify passenger seats per the manufacturer’s service bulletin and replace certification labels. The work must be done within 24 months or 600 flight hours (whichever comes first) and relabeling must occur before the next flight. It’s required because the seats failed structural load tests and could cause serious injury in an emergency; aircraft cannot legally fly until compliance."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD's scope aligns with its stated safety objective: correct seat structural shortcomings on listed B300 serial numbers by modifying seat assemblies and re‑identifying parts per the service bulletin. It does not expand beyond those aircraft or beyond the specified modification and relabelling requirements (see Applicability, Requirement, Compliance, Background)."},"complexity_factors":["Applicability is serial-number specific, limiting the universe of affected aircraft but requiring operators to check serial lists (Applicability).","Mandates work to be done per a manufacturer's service bulletin (SB‑25‑3640, Revision 1) which operators must obtain and follow (Requirement).","Dual compliance timing: modification due within 24 calendar months or 600 hours TIS, whichever occurs first; relabelling required before further flight after modification (Compliance).","Requires physical alteration (seat modification) plus removal of the existing TSO label and re‑identification with a new part number, creating both technical and administrative tasks (Requirement).","Reference to FAA AD 2006‑19‑09 indicates reliance on corresponding foreign authority documentation for technical background (Requirement/Note).","Practical burdens include scheduling maintenance, sourcing any required parts or kits, and documenting compliance for each affected seat/aircraft (implied by Requirement and Compliance)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Raytheon Beechcraft Model B300 aeroplanes to modify cabin passenger seats to the configuration and part-numbering set out in Raytheon Service Bulletin SB‑25‑3640 (Rev 1). It applies to listed serial numbers and must be done within a set time or flight-hours, with relabelling before further flight. The measure is intended to prevent seat failure under high inertial loads during emergency landings and therefore shifts maintenance, parts and administrative costs onto aircraft operators."},"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-beech-300-19-passenger-seat-modification","history":"/api/acts/ad-beech-300-19-passenger-seat-modification/history","analysis":"/api/acts/ad-beech-300-19-passenger-seat-modification/analysis","conflicts":"/api/acts/ad-beech-300-19-passenger-seat-modification/conflicts","importantCases":"/api/acts/ad-beech-300-19-passenger-seat-modification/important-cases","documents":"/api/acts/ad-beech-300-19-passenger-seat-modification/documents"}}