Preparation and Sealing: Secure all windows, doors, and hatches. Cover sensitive parts like pitot tubes, static ports, antennas, and engine inlets using designated covers or aviation-approved low-tack tape to prevent water or chemicals from entering.

Pre-Rinse: Perform a low-pressure rinse over the entire aircraft to remove loose dirt, dust, and debris that might cause scratches. Never use high-pressure washers, as they can damage paint adhesion or drive moisture into structural lap joints and seams.

Spot Cleaning: Treat stubborn stains such as hydraulic fluid leaks, exhaust tracks, carbon deposits, and grease spots with manufacturer-approved solvent-based or specialty cleaners.

Main Wash:  Apply a diluted, pH-neutral aviation soap using soft-bristled brushes, mops, or microfiber mitts. Always work top-to-bottom and in strategic sections (e.g., windshield, nose, fuselage, wings, tail) to prevent dirty water from streaking or recontaminating cleaned surfaces.

Rinsing: Rinse the aircraft thoroughly with clean, low-pressure water to ensure absolutely no soap residue dries on the surface.

Drying and Inspection: Dry the aircraft using clean chamois, microfiber towels, or rubber squeegees to prevent water spots. Finally, remove all masking tapes and covers, ensure pitot tubes are unobstructed, and conduct a post-wash inspection and re-lubrication of moving parts if required.