It’s annual time and it was time to do something about the sad looking nose gear. Long story short, we pulled out the nose gear and began disassembly so everything can be blasted, primed and painted. The big shocker was the deteriorated condition of the inside of the “core” of the “donut stack”. The actual part number is 540015-001 (32-20-00). When the donuts were removed, it was noticed that the bore of the tube was almost completely packed with heavy rust that had sloughed off of the interior of the tube over the years. The level of the rust was up to within 3/4” of the top of the tube, just below the cross bolt. It’s my guess that this plane was frequently washed and then rolled back into the hangar where any water that made it down into the tube remained until it finally dried out. As time went on, and the rust accumulation grew, it was a nice moist environment for the rust to continue.
From here on out, I’ll make sure that tube will always get hit with the air gun if the plane isn’t flown after getting a wash.