0523919 – Textron Aviation OEM Flap Roller Bushing
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Overview
The Textron Aviation 0523919 is a genuine OEM, flight-critical Flap Roller Bushing used across a vast range of Cessna aircraft, from the 150 Skyhawk all the way up to the 208 Caravan. This precision component is the primary bearing surface that is press-fit into the flap roller, allowing the roller to spin freely on its axle or pin. The smooth operation of this bushing is essential for the extension and retraction of the aircraft's wing flaps.
Worn or corroded bushings are a primary cause of flap system "slop," binding, or jamming. A failed bushing can prevent a flap from retracting or extending, leading to a dangerous asymmetric (split-flap) condition, which can cause a loss of control, especially at low airspeeds. This bushing is a critical component in ensuring the safe, reliable, and symmetric operation of the flap system.
Key Features
Genuine Textron Aviation OEM Part: The only part certified and manufactured to the exact material, hardness, and dimensional tolerances specified by the aircraft's original design.
Flight-Critical Component: Its performance is essential for the safe and reliable operation of the wing flap system.
Precision-Machined Bearing Surface: Engineered to provide a smooth, low-friction surface for the flap roller, ensuring binding-free operation.
Durable Construction: Manufactured from a high-quality bearing-grade material (typically a bronze or aluminum alloy) designed to withstand the high-cycle, high-load environment of the flap tracks.
Wide Applicability: A standard, time-tested component used on thousands of Cessna aircraft worldwide.
Technical Specifications
Part Number: 0523919
Component Type: Bushing, Flap Roller
OEM Manufacturer: Textron Aviation (Cessna)
Material: Aerospace-Grade Bearing Alloy (Note: This OEM part is often replaced by FAA-PMA parts made from stainless steel, but the original is typically a bronze/aluminum alloy).
Associated Part Numbers: 0523919-0, S4628-1485
JASC Code: 2750 - FLAP SYSTEM
Aircraft Compatibility
This bushing is one of the most common components in the Cessna fleet and is used on nearly all single-engine models and the Caravan. Applicability includes, but is not limited to:
Cessna Singles: 150, 152, 170, 172 Skyhawk, 177 Cardinal, 180 Skywagon, 182 Skylane, 185 Skywagon, 206 Stationair, 210 Centurion
Cessna Turboprop: 208 Caravan, 208B Grand Caravan
Note: This is a flight-critical component. Applicability can vary by aircraft serial number and specific flap roller position (inboard/outboard). The aircraft's specific Illustrated Parts Catalog (IPC) is the final and absolute authority for determining part applicability.
Applications
Wing Flap System: Serves as the bearing for the flap rollers (e.g., P/N 0523920, 0523921), allowing them to move freely along the flap tracks.
Airworthiness Directive (AD) Compliance: Replacement of these bushings is a common part of complying with service bulletins (like SEB95-3) and ADs related to flap system wear and inspection.
Why Choose 0523919?
A functional flap system is non-negotiable for safe takeoffs and landings. The genuine Textron 0523919 is the only part guaranteed to meet the OEM's precise design, material, and quality standards. Using a non-certified part or continuing to fly with worn bushings introduces an unacceptable risk of flap system failure. This OEM component ensures airworthy, reliable performance and is the definitive part for a safe and professional repair.
Note: The 0523919 is a flight-critical component. Installation must be performed by a certified A&P/IA mechanic in strict accordance with the Textron Aviation maintenance manual and all applicable service bulletins. These bushings should be inspected regularly for wear (ovality or "egging") and replaced to prevent damage to the more expensive flap rollers and tracks.
Documentation
No public-facing OEM specification sheet was located for this proprietary part number. All authoritative technical data, installation procedures, and inspection criteria are contained within the official Textron Aviation Maintenance Manual and Illustrated Parts Catalog (IPC) for the applicable aircraft models.