{"id":"F2008L01214","name":"AD/CESSNA 206/64 - Seat Base/Back Attach Bracket","slug":"ad-cessna-206-64-seat-base-back-attach-bracket","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":73453,"registerId":"commonwealth-F2008L01214-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 206 Series Aeroplanes","sectionType":"division","heading":"Cessna 206 Series Aeroplanes","content":"### Cessna 206 Series Aeroplanes\n\n| AD/CESSNA 206/64 | Seat Base/Back Attach Bracket | 5/2008 |\n| ---------------- | ----------------------------- | ------ |\n\n| Applicability: | Cessna Model 206H, S/N 20608216 through 20608283 and Model T206H,S/N T20608445 through T20608662, T20608664 through T20608671, T20608673, T20608674, T20608676 through T20608681, T20608683 through T20608689, T20608691, T20608692, T20608694 through T20608696, T20608699 through T20608701, T20608703, and T20608704.                                                                                                                                                        |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | For crew seats only, follow Cessna Aircraft Company Single Engine Modification Kit No. MK206-25-10, dated 23 April 2007 or later approved revision, as specified in Cessna Aircraft Company Service Bulletin SB07-25-04, dated 23 April 2007 or later approved revision.Note 1: FAA AD 2008-05-09 refers.Note 2: This Airworthiness Directive is applicable to the front row seats only. Modification to seats 3 & 4 (2nd row) is not mandated by this Airworthiness Directive. |\n| Compliance:    | Within the next 50 hours time-in-service after or within the next 6 months, after the effective date of this Airworthiness Directive, whichever occurs first.                                                                                                                                                                                                                                                                                                                   |\n|                | This Airworthiness Directive becomes effective on 8 May 2008.                                                                                                                                                                                                                                                                                                                                                                                                                   |\n| Background:    | This AD results from reports of the seat base/back attach bracket failing where it is welded to the seat base. We are issuing this Airworthiness Directive to prevent failure of the seat base/back attach brackets, which could result in the seats collapsing backwards during flight with consequent loss of control.                                                                                                                                                        |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n27 March 2008","sortOrder":0},{"sectionNumber":"AD/CESSNA 206/64","sectionType":"part","heading":"AD/CESSNA 206/64","content":"## AD/CESSNA 206/64","sortOrder":1},{"sectionNumber":"Seat Base/Back Attach Bracket","sectionType":"part","heading":"Seat Base/Back Attach Bracket","content":"## Seat Base/Back Attach Bracket","sortOrder":2},{"sectionNumber":"5/2008","sectionType":"part","heading":"5/2008","content":"## 5/2008","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD targets a specific, limited problem: reinforcing the seat base/back attach bracket on front-row crew seats for listed serial numbers. It does not broaden applicability to other models or rear-row seats; the directive aligns with the stated safety purpose in the Background and with the referenced FAA AD."},"complexity_factors":["Narrow applicability limited to specific Cessna 206/T206H serial number ranges, requiring identification of affected aircraft.","Mandated use of a specific factory modification kit (MK206-25-10) and service bulletin (SB07-25-04) or later approved revisions, imposing documentary conformity.","Short compliance window (50 flight hours or six months) creates scheduling and logistic pressure.","Mandate applies only to front-row crew seats (explicit exclusion of seats 3 & 4), increasing administrative tracking to avoid over- or under-compliance.","Reference to FAA AD introduces cross-jurisdictional conformity considerations for operators and maintenance organisations."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Cessna 206/T206H serial numbers to fit Cessna modification kit MK206-25-10 (or a later approved revision) to the front-row crew seat base/back attach bracket, following Service Bulletin SB07-25-04. The work must be done within 50 flight hours or six months from the AD’s effective date (8 May 2008). Owners pay for and arrange the retrofit; the regulator mandates and enforces it to prevent weld failure that could let seats collapse backwards in flight."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrowly-targeted airworthiness directive addressing a specific mechanical defect in specific aircraft. The scope remains tightly focused on the original safety issue (seat bracket failure) and has not expanded beyond this purpose."},"complexity_factors":["Very short document (under 300 words)","Only 2 defined applicability criteria (aircraft models and serial numbers)","Single straightforward requirement with clear reference to external technical document","Simple compliance deadline (whichever comes first of two conditions)","No nested exceptions or conditional logic — only one explicit exclusion (2nd row seats)","No cross-references to other legislation beyond noting related FAA directive"],"plain_english_summary":"This AD orders owners/operators of specified Cessna 206H/T206H airframes to install Cessna Kit MK206-25-10 on the pilot and front passenger seats to correct failing seat-back bracket welds. The mandatory modification must be done within 50 flight hours or six months from 8 May 2008. It addresses a critical safety risk: a rearward seat collapse that could lead to loss of aircraft control."},"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-206-64-seat-base-back-attach-bracket","history":"/api/acts/ad-cessna-206-64-seat-base-back-attach-bracket/history","analysis":"/api/acts/ad-cessna-206-64-seat-base-back-attach-bracket/analysis","conflicts":"/api/acts/ad-cessna-206-64-seat-base-back-attach-bracket/conflicts","importantCases":"/api/acts/ad-cessna-206-64-seat-base-back-attach-bracket/important-cases","documents":"/api/acts/ad-cessna-206-64-seat-base-back-attach-bracket/documents"}}