Table of Contents
Proper preparation of aircraft brake systems for long-term storage is essential to ensure their functionality and safety when they are needed again. Neglecting proper procedures can lead to corrosion, degradation of components, and operational failures. This guide provides key steps for preserving aircraft brake systems during extended periods of inactivity.
Pre-Storage Inspection and Cleaning
Before storing, conduct a thorough inspection of the brake system. Check for any signs of wear, corrosion, or damage. Clean all components with appropriate solvents to remove dirt, grease, and contaminants. Pay special attention to the brake discs, calipers, and hydraulic lines.
Drainage and Fluid Management
Drain all hydraulic fluids from the brake system to prevent deterioration and corrosion. Replace old fluids with fresh, high-quality hydraulic fluid recommended by the manufacturer. This prevents moisture buildup and maintains system integrity during storage.
Corrosion Prevention
Apply corrosion inhibitors to metal surfaces and internal components. Use products specifically designed for aerospace applications. Ensure that all exposed metal parts are adequately coated to prevent rust and corrosion during storage.
Protective Coverings and Environment Control
Cover the brake assemblies with protective coverings to prevent dust, dirt, and moisture accumulation. Store the aircraft in a controlled environment with low humidity and stable temperature to minimize corrosion risk.
Periodic Maintenance and Checks
During long-term storage, periodically inspect the brake systems. Reapply corrosion inhibitors if necessary and check for any signs of deterioration. Rotate or move the aircraft slightly to prevent seizing of components.
Reactivation Procedures
When ready to use the aircraft again, perform a comprehensive inspection and re-bleed the hydraulic system. Replace any worn or damaged parts before flight operations. Conduct test runs to ensure the brake system functions correctly.
Following these steps helps maintain the integrity and safety of aircraft brake systems during long-term storage, ensuring reliable performance when needed.