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Cessna 182 Aluminum Corrosion Removal — Aircraft Restoration

Vacaville restoration work on a Cessna 182 airframe used a conservative 6061/6065 baseline on a coupon, then dropped power near thin ribs and skin so corrosion and paint could come off the aluminum without the 200-plus hours of abrasive blending that job had been quoted. Sixteen hours of pulsed passes covered the airframe surfaces that needed that film gone.

N2639F: Cessna 182 SkyLane Restoration

Kevin's Cessna 182 SkyLane (N2639F) stripped and ready for laser cleaning at his Vacaville hangar. Doors off, interior cleared, the aircraft is fully accessible for a complete corrosion removal pass from nose to tail.

Z-Beam Set Up and Ready

The Kamino laser unit staged beside the aircraft, door panel removed. With the aircraft fully accessible and laser calibrated, Kevin was able to work continuously across all fuselage surfaces, no masking, no media, no cleanup between areas.

Empennage: Tail Surfaces

The tail section still in painted condition before laser cleaning. The Cessna engine is visible on a stand in the background, engine, airframe, and control surfaces all in various stages of disassembly at once, maximizing the single-weekend cleaning window.

Overhead View: Cowling Off, Engine Exposed

Looking down at the aircraft from above, cowling removed and engine bay fully exposed. The cowling-off state gave direct laser access to the firewall, engine mounts, and forward fuselage structure without any disassembly beyond what Kevin had already completed for the restoration.

Bonus: Piper J-3 Cub Steel Tube Fuselage

While the laser was on site, Kevin also ran it over the welded 4130 chromoly steel tube fuselage of a Piper J-3 Cub in his hangar. The frame is now clean bare metal, rust, oxidation, and old coating gone from every tube and gusset, including deep into the tube intersections where wire brushes can't reach.

Engine Cylinders: Laser on Steel

The laser handpiece working directly across the steel cylinder cooling fins, the ribbed geometry that defeats wire brushes and blasting. Kevin noted this specifically in his review: the laser cleaned rust off the steel cylinders as effectively as it handled the aluminum surfaces.

Before: Top of Dash, Oxidation and Staining

The top face of the instrument panel surface, all avionics removed, decades of oxidation staining and adhesive residue visible across the upper aluminum surface. The rectangular cutout and surrounding rivet pattern show the full area that needed cleaning before re-installation.

Before: Cabin Floor Panels

The cabin floor viewed from above , aluminum skin panels with corrosion staining and access holes for the landing gear mechanism and control cable runs. Floor areas trap moisture and are among the highest-corrosion zones in light aircraft. Each rivet shows the corrosion pattern around its head.

Cabin Interior: Floor Cleaned

Looking down into the stripped cabin, floor panels cleaned, door frame structure and upper sidewalls showing the remaining corrosion work ahead. The contrast between the cleaned floor and the still-contaminated upper structure shows how the laser is worked through the aircraft systematically.

Headliner Adhesive vs. Clean Aluminum

A close-up showing exactly what the laser is removing: the upper surface carries thick adhesive residue and corrosion from decades of headliner backing, while the lower aluminum stringer has already been laser-cleaned to bright bare metal. The line between contaminated and clean is visible in a single frame.

Before: Interior Overhead, Looking Aft

Looking aft through the stripped cabin, the overhead fuselage frames and skin show heavy brown adhesive residue from the original headliner, corrosion staining, and old coatings throughout. This is the scope of contamination that 16 hours of laser work addressed.

Before: Interior Side Structure

The port-side interior looking aft, instrument subpanel removed, heavy corrosion and adhesive contamination visible on the upper frame and skin. The door frames, window surrounds, and overhead longerons all required laser attention. With doors off and interior stripped, every surface was accessible without further disassembly.

Kevin in PPE, Ready to Work

Kevin suited up with a powered air-purifying respirator, the right protection for enclosed-space laser cleaning where fume plume stays inside the fuselage. The J-3 Cub fuselage frame is visible behind him. As an FAA A&P with an Air Force engineering background, Kevin ran the laser himself after a short orientation.

Before: Full Cockpit, Scope of Work

The full cockpit gutted and ready for laser cleaning, both left and right instrument panel sections visible with all instruments removed, heavy corrosion and adhesive staining on the sidewalls, and the control column bases exposed. This single shot captures why 16 hours of laser work was needed: every surface in this space required attention.

Before: Interior Bulkhead, Rust and Flaking Paint

An interior structural panel showing rust staining around fasteners, flaking old paint, and a rectangular inspection cutout. The corrosion pattern is typical of aluminum that has been sealed under old paint for decades, surface pits and staining that abrasive methods would enlarge rather than remove cleanly.

Before: Spar Bay, Fuel Sender and Corrosion

The lower spar bay area with the fuel quantity sender visible, heavy brown corrosion across the entire surface, staining around every rivet and attach point, and old sealant around the sender flange. An area that would require hours of careful hand work to clean with abrasives without damaging the sender or wiring.

Overhead: Mid-Clean Contrast

The overhead structure mid-session, the central aluminum frame has been laser-cleaned to bright bare metal while the adjacent skin panels still carry the dark green adhesive and corrosion from the original headliner. The contrast shows exactly what the laser removes and how the work progresses panel by panel.

Spar Cleaning: Cleaning in Progress

The laser working across the spar cap, the fume plume is visible as a faint haze over the surface, and the cleaned metal track is already visible beneath. This is the sizzle Kevin described: the laser audibly ablating corrosion until the surface is clean, then silence.

Spar Cap: Clean Metal Revealed

The spar cap cleaned to bright bare aluminum, the primary load-carrying surface of the main spar is now free of corrosion and ready for inspection and primer. The upper flange still shows remaining work above, illustrating the systematic pass-by-pass approach through each structural member.

Before: Spar Re-Riveted, Now Needs Cleaning

The main spar with new rivets freshly installed, copper-shank rivets with yellow protective caps not yet set. The spar web shows heavy corrosion and oxidation across the entire face. The laser will clean this surface without disturbing the new fasteners or requiring any masking.

Vacaville restoration work on a Cessna 182 airframe used a conservative 6061/6065 baseline on a coupon, then dropped power near thin ribs and skin so corrosion and paint could come off the aluminum without the 200-plus hours of abrasive blending that job had been quoted. Sixteen hours of pulsed passes covered the airframe surfaces that needed that film gone.

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