Description
The 1270559-3 is a genuine Textron Aviation dimming module wba of a type used within the aircraft's avionics or electrical circuits. It is fitted to the Skyhawk and Skylane. It carries an export classification of ECCN 9A991.
As an original-equipment (OEM) part supplied directly by Textron Aviation, the 1270559-3 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 Skyhawk and Skylane fleet, correctly identified factory parts like this keep every airframe consistent and configuration-correct.
Ratings, tolerances, and interfaces are what define an electrical part; matching the specified item keeps the system working as certified. On a certificated airframe, part provenance matters as much as the part itself; genuine factory sourcing settles that question up front.
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.
Cessna traces to the company Clyde Cessna founded in Wichita, Kansas in 1927; Textron Inc. acquired it in 1992, and since 2014 it has anchored Textron Aviation alongside Beechcraft and Hawker. With over 44,000 built, the Cessna Skyhawk is the best-selling aircraft ever made and is still produced today.
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