Fuselage center section bulkhead deburring

[msmst25]

I just wanted to make sure I’m doing this right. Page 25-2 says debut the edges on all parts. I assume I need to deburr the bulkhead, but it seems weird since it already has a gold finish. After deburring, should I prime it with the normal primer? I’m already priming the interior parts, so I don’t want to start another discussion about the need for priming. Thanks for the help.

[Robin8er]

The gold anodized parts from the factory should be free of burrs. Leave them alone

[Kolg]

I have the same question. I don’t want to put a file or deburring tool on the anodized parts BUT there are a few sharp edges that on any other part I would have radiused.

[Dr_Dave_MT]

Late reply - Deburr anodized parts - I would Deburr those sharp edges, rather than have a potential crack propagation point, I have had a few holes in the “final drilled” parts a little undersized as well. You WILL remove the conversion coating. You can get a brush-on or stick ALODINE conversion coating to protect. (I have used them in the avionics OEM industry years ago) I would wipe those areas with Acetone, MEK, etc. wash with Dawn detergent, and acid etch that small spot first. (Use AC / evaporative cooler cleaner as it has Phosphoric Acid,) then rinse and apply ALODINE. Then Prime or not to prime point in the equation. dl