AFT SHELF SUPPORT-172

The 3940484-7 is a genuine Textron Aviation aft shelf support 172 that mounts, locates, or braces a component within the airframe. It is applicable to the Skyhawk. It carries an export classification of ECCN 9A991. Supplied directly by Textron Aviation as an original-equipment (OEM) part, the 3940484-7 meets the manufacturer's specification and keeps the aircraft configuration-correct, with clean traceability in the maintenance records. Because the Cessna Skyhawk aircraft share extensive structure and hardware, a single part like this is often common across several variants. A support or bracket component holds a system or structure in its correct place, so the right part preserves alignment and clearance. Fitting the correct factory part the first time avoids the rework, removal, and re-inspection that an incorrect or unapproved part can trigger. OEM parts arrive to the specification the type design was certified against, preserving both airworthiness and the airframe's documented configuration. Because aircraft parts are governed by strict airworthiness and traceability rules, fitting the OEM part rather than an unapproved equivalent keeps the installation eligible and the aircraft's records clean. Genuine sourcing means the part matches the drawing exactly, so fit and function are known quantities rather than a gamble at installation. 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. With over 44,000 built, the Cessna Skyhawk is the best-selling aircraft ever made and is still produced today. To check availability, request a quote for 3940484-7 or browse more Cessna Skyhawk parts on Flying411.