ATA Chapter 21-11 - Air Conditioning - Plumbing

This subchapter covers the plumbing components of the air conditioning system in an aircraft. The air conditioning plumbing ensures efficient air transport, pressure regulation, and temperature control while maintaining a comfortable cabin environment. It supports air circulation from the source (engines/APU) through cooling, heating, and pressurization processes.

Sub-chapters

• 21-11-00 - General
• 21-11-10 - Air Distribution Ducting
• 21-11-20 - Connectors and Seals
• 21-11-30 - Flexible Hoses
• 21-11-40 - Insulation and Thermal Protection
• 21-11-50 - Water and Drain Lines
• 21-11-60 - Fittings and Couplings
• 21-11-70 - Mounting and Supports
• 21-11-80 - System Venting and Bleed Valves

Rotable Parts