AAC Corrosion Prevention and Control

Question 1

What does the acronym CPCP stand for in Army aviation maintenance?

Accepted Answer

Corrosion Prevention and Control Program

Answer

CPCP stands for Corrosion Prevention and Control Program, which establishes systematic procedures for preventing and treating corrosion on Army aircraft.

Question 2

Which type of corrosion most commonly affects aluminum aircraft structures and appears as white or gray powdery deposits?

Accepted Answer

Surface corrosion (oxidation)

Answer

Surface corrosion (oxidation) is the most common type affecting aluminum, manifesting as white or gray powdery deposits on the metal surface due to reaction with oxygen.

Question 3

What is galvanic corrosion in the context of Army aircraft maintenance?

Accepted Answer

Corrosion that occurs when two dissimilar metals are in contact in the presence of an electrolyte

Answer

Galvanic corrosion occurs when two dissimilar metals are in electrical contact in the presence of an electrolyte, causing the less noble metal to corrode preferentially.

Question 4

Which environmental condition most accelerates corrosion on Army aircraft?

Accepted Answer

High humidity and salt-laden air

Answer

High humidity combined with salt-laden air, such as in coastal or marine environments, most rapidly accelerates electrochemical corrosion on aircraft metal surfaces.

Question 5

What is the first step a maintenance technician should take when discovering corrosion on an Army aircraft?

Accepted Answer

Document the finding on the appropriate maintenance form

Answer

The first step is to document the finding on the appropriate maintenance form (DA Form 2404) so the discrepancy is officially recorded and can be properly assessed and tracked.

AAC - Army Aviation Maintenance Program Practice Test

AAC - Army Aviation Maintenance Program Practice Test

AAC Corrosion Prevention and Control