Which of the following is NOT a common mitigation practice for corrosion?

• A. Coatings
• B. Sealants
• C. Regular inspections
• D. Immediate replacement of all parts

Answer: (D)

Mitigation of corrosion focuses on preventing moisture and chemical attack through protective barriers, tight seals, and ongoing monitoring so issues can be addressed before they worsen. Coatings form a protective layer on metal surfaces, slowing or stopping corrosion. Sealants keep moisture and contaminants out of joints and seams. Regular inspections catch early signs of corrosion and verify that protective measures are working. Replacing all parts immediately isn't a typical mitigation approach because it's impractical and costly; maintenance targets preserving serviceable components through targeted repairs or replacements when corrosion actually compromises safety or performance, not a blanket, wholesale replacement.