21-20 DISTRIBUTION

21-20-00 DISTRIBUTION

PB.001 DISTRIBUTION - DESCRIPTION AND OPERATION
PB.201 DISTRIBUTION - MAINTENANCE PRACTICES
- 21-20-00-010-001-A [10]
  Removal of the Air-Conditioning Distribution Ducts
- 21-20-00-410-001-A [10]
  Installation of the Air-Conditioning Distribution Ducts
PB.601 DISTRIBUTION - INSPECTION/CHECK
- 21-20-00-210-001-A [10]
  General Visual Inspection of the Riser Ducts in the Passenger Compartment
- 21-20-00-210-002-A [10]
  General Visual Inspection of Lavatory and Galley Ventilation Ducting (Zones 220 to 260)