TM 1-1520-238-23
1-158.6
Change 9
1.49.
CORROSION CONTROL/INSPECTION – continued
1.49.11. Corrosion Preventative and Corrective Maintenance
NOTE
This plan provides Corrosion Prevention and Control for the AH-64A helicopter in high humidity, salt
and sand environments which promote accelerated corrosion and reduce the life of the aircraft.
To effectively control corrosion, active participation of all Apache maintainers is required. To obtain this participation
a corrosion control regime consistent with the Army aviation corrosion prevention and control policy as stated in
TM 1-1500-328-23, Aeronautical Equipment Maintenance Management Policies and Procedures, must be
employed.
This corrosion control regime requires a formal rinse, wash with reapplication of corrosion preventative compounds
and inspection of corrosion prone areas procedure which is accomplished on a frequency based on calendar time
adjusted for operating environment. The operating environment where corrosion is concerned has been divided into
four types: Extremely severe, Severe, Moderate, and Slight. The amount of corrosion control effort required should
be tailored to operator’s environments.
If corrosion is detected, it must be repaired. The two Tri-Service Corrosion Control Manuals: TM 1-1500-343-23,
Avionic Cleaning and Corrosion Prevention, and TM 1-1500-344-23, Tri-Service Aircraft Weapons System Cleaning
and Corrosion Control provide general corrosion repair and prevention techniques which should be used to the
fullest extent possible in maintaining the Apache. Another general manual, TM 55-1500-345-23, Painting and
Marking for Army Aircraft, is used in the Apache Corrosion Prevention and Control Program.
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