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Daniels Web Site
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Date: 2-23-2016
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Number of Hours: 4.50
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Manual Reference: NA
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Brief Description: Started Clean Up Process
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Started the corrosion clean up process in the baggage floor area. There was a concentration of urine (i.e., corrosion) in the forward left corner and all along the left rivet line of the floor. There was also a bunch on the upper flange of the aft baggage bulkhead.
Process was tedious but I think the corrosion was properly addressed. Here was the process that was followed:
- Removed rivets that were soaked in urine, including rivets on the left side of the fuselage/baggage floor flange.
- Using a plastic scraper, removed as much of the corrosion as possible.
- Using Acetone and rags, removed primer in affected areas (Stewart Systems Ecoprimer is removable with solvents).
- Using Scotch Brite pads and 320 grit sandpaper, mechanically removed corrosion but did not sand into pitted areas (would remove too much aluminum).
- Using Alumiprep 33, treated exposed aluminum areas. Also scrubbed pitted areas to ensure Alumiprep 33 worked on corrosion in those areas.
- Flushed with distilled water and dried.
- Using Alodine 1201, treated exposed aluminum areas, flushed with water, and dried.
- Reinstalled rivets in affected areas.
- Primed exposed aluminum areas with Stewart Systems Ecoprimer. After tacky, resprayed entire baggage floor area.
Photos below show before/during/after.
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Before
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During
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After
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