Description
The 1A3C-1 is a genuine Textron Aviation sending unit tachometer — a factory assembly of several components supplied together as one serviceable unit. It is fitted to the Skyhawk and Skylane. It carries an export classification of ECCN EAR99.
Because the 1A3C-1 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 Skyhawk and Skylane 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.
Because substitutions on type-certificated aircraft require approved data, the genuine part is the straightforward, compliant choice for this application. For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for.
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. With over 44,000 built, the Cessna Skyhawk is the best-selling aircraft ever made and is still produced today.
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