Corrosion occurs as metals seek to revert to their natural state. [Credit: Jean Vella/ Unsplash]
Key Takeaways:
Corrosion is a persistent problem for aircraft, manifesting as dry rot in wooden components due to moisture and as electrochemical deterioration (rust) in metal parts.
For metal corrosion to occur, four specific conditions (anode, cathode, electrolyte, and electrical contact) must be met, while wood corrosion is often caused by excessive humidity and heat.
Beyond airframes, corrosion is a "silent killer" that affects critical components like propellers, avionics, and engines throughout an aircraft, potentially leading to equipment failures.
Corrosion has existed as long as aircraft. Although it was most likely not on the minds of Wilbur and Orville Wright during their famous 12-second flight, it nonetheless quickly became the archnemesis of many aviators.
As aircraft progressed, so did the enemy. Corrosion identification, prevention, and treatment is an ongoing battle.
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Richard is a US Navy Veteran, A&P Mechanic, and Embry-Riddle Aeronautical University alumni. His experience ranges from general and corporate aviation to helicopters, business jets, and commercial airliners. Former owner of a 145 repair station, he currently has an aerospace product management role and is a member of the T-C-Alliance. Follow him on X (Twitter) at @RScarCo.
