Description
The MS24171D1 is a genuine Textron Aviation relay that controls an electrical circuit aboard the aircraft. It is fitted to the 1900 Airliner, 1900C Airliner, 1900D Airliner, Citation III, VI or VII, Citation Latitude, and Citation Sovereign or Sovereign+. It carries an export classification of ECCN EAR99.
Supplied directly by Textron Aviation as an original-equipment (OEM) part, the MS24171D1 meets the manufacturer's specification and keeps the aircraft configuration-correct, with clean traceability in the maintenance records.
Because the Beechcraft 1900 and Cessna Citation aircraft share extensive structure and hardware, a single part like this is often common across several variants.
In an aircraft's electrical system, using the correct component preserves the circuit's designed behavior, reliability, and safety. Because substitutions on type-certificated aircraft require approved data, the genuine part is the straightforward, compliant choice for this application.
Fitting the correct factory part the first time avoids the rework, removal, and re-inspection that an incorrect or unapproved part can trigger. The factory part is built to the manufacturer's material and dimensional specification, so it installs as designed without the surprises a generic equivalent can bring.
For a regulated aircraft component, correct identification by factory part number is what guarantees the exact form, fit, and function the design calls for.
These aircraft are built by Textron Aviation, which unites Cessna (founded 1927) and Beechcraft (founded 1932) under one Wichita, Kansas company since 2014. Derived from the King Air, the 19-passenger Beechcraft 1900 airliner (built 1982–2002) remains in service with regional and cargo operators.
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