ATA 55-20 Subchapter 20

This section contains detailed information about the subchapter 20systems and components. The content includes descriptions, operation principles, and maintenance procedures.

Overview

The Subchapter 20 is a critical system that provides essential functionality for the aircraft's operation. It consists of multiple components working together to ensure safe and efficient performance.

Components

Major components include:

Primary control units
Secondary systems
Monitoring equipment
Backup systems

Maintenance Considerations

Regular inspection and maintenance are required to ensure proper operation. Key maintenance items include:

Scheduled inspections
Component replacement intervals
Functional testing procedures
Troubleshooting guidelines