ADAPTER

The MS21900D6 is a genuine Textron Aviation adapter supplied for use on the aircraft, with its precise function defined by the aircraft's parts data. It is applicable to the Citation CJ1 or CJ1+, Citation CJ4, CJ4 Gen 2, CJ4 Gen 3, Citation Excel, XLS, XLS+, XLS Gen 2, Citation Sovereign or Sovereign+, Citation V, Ultra, Encore or Encore+, and Citation X+. It carries an export classification of ECCN EAR99. As an original-equipment (OEM) part supplied directly by Textron Aviation, the MS21900D6 is built to the aircraft maker's specification and cross-references the type design as documented in the maintenance data. Choosing the genuine part over an unapproved substitute preserves configuration control and simplifies inspection sign-offs. Across the Cessna Citation fleet, correctly identified factory parts like this keep every airframe consistent and configuration-correct. As a factory-supplied item for a type-certificated aircraft, this part is defined by the manufacturer's specification and applicability data. Because this is a component for a type-certificated aircraft, using the manufacturer's part keeps the installation within approved configuration and simplifies compliance. Because substitutions on type-certificated aircraft require approved data, the genuine part is the straightforward, compliant choice for this application. The Cessna name is among the most recognized in aviation — founded in Wichita, Kansas in 1927 and part of Textron since 1992, today a cornerstone of Textron Aviation. The Citation family is the best-selling line of business jets ever built, and more than 7,500 have been delivered worldwide. To check availability, request a quote for MS21900D6 or browse more Cessna Citation parts on Flying411.