Description
The MS16633-1021 is a genuine Textron Aviation ring supplied for use on the aircraft, with its precise function defined by the aircraft's parts data. It is fitted to the Citation CJ3, CJ3+, CJ3+ Gen 2, CJ3 Gen 3, Citation M2, M2 Gen 2, M2 Gen 3, Skyhawk, Skylane, and Stationair. It carries an export classification of ECCN EAR99.
Because the MS16633-1021 is an original-equipment (OEM) part sourced directly from Textron Aviation, it matches the exact specification and placement called out in the aircraft's type design and maintenance data — assurance a generic substitute cannot offer.
Parts like this are shared across the Cessna Citation, Skyhawk, Skylane, and Stationair aircraft, reflecting how much structure and hardware these models have in common.
This is a cataloged factory part whose form, fit, and function are established by the manufacturer's approved 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.
For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for.
Built by Textron Aviation, whose Cessna line was founded in Wichita, Kansas in 1927 and joined Textron in 1992, this part carries one of general aviation's most storied names. 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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