Description
The MS21902D06 is a genuine Textron Aviation union supplied for use on the aircraft, with its precise function defined by the aircraft's parts data. It is fitted to the Citation X. It carries an export classification of ECCN 9A991.
As an original-equipment (OEM) part supplied directly by Textron Aviation, the MS21902D06 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.
Parts like this are shared across the Cessna Citation aircraft, reflecting how much structure and hardware these models have in common.
As a factory-supplied item for a type-certificated aircraft, this part is defined by the manufacturer's specification and applicability data. For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for.
OEM parts arrive to the specification the type design was certified against, preserving both airworthiness and the airframe's documented configuration. Genuine factory parts carry the documentation and traceability that maintenance and airworthiness records depend on — assurance a look-alike substitute cannot provide.
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.
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