21-26 AVIONICS EQUIPMENT VENTILATION

21-26-00 AVIONICS EQUIPMENT VENTILATION

PB.001 AVIONICS EQUIPMENT VENTILATION - DESCRIPTION AND OPERATION
PB.201 AVIONICS EQUIPMENT VENTILATION - MAINTENANCE PRACTICES
- 21-26-00-860-001-A [10]
  Configuration of the Avionics Compartment Ventilation System
- 21-26-00-860-001-A-01 [10]
  Configuration of the Avionics Compartment Ventilation System
- 21-26-00-860-002-A [10]
  Ground Operations in Heavy Rain or High Dust/Sand Concentration
PB.401 AVIONICS EQUIPMENT VENTILATION - DEACTIVATION/REACTIVATION
- 21-26-00-040-018-A [10]
  Deactivation of the Blower Fan - FAA Operators Only
- 21-26-00-040-019-A [10]
  Deactivation of the Blower Fan - FAA Operators Only
- 21-26-00-040-020-A [10]
  Deactivation of the Extract Fan - FAA Operators Only
- 21-26-00-040-021-A [10]
  Deactivation of the Extract Fan - FAA Operators Only
- 21-26-00-040-022-A [10]
  Deactivation of the Extract Fan - FAA Operators Only
- 21-26-00-040-023-A [10]
  Deactivation of the Blower Fan - FAA Operators Only
- 21-26-00-440-803-A [10]
  Reactivation of the Blower Fan - FAA Operators Only
- 21-26-00-440-804-A [10]
  Reactivation of the Blower Fan - FAA Operators Only
- 21-26-00-440-805-A [10]
  Reactivation of the Extract Fan - FAA Operators Only
- 21-26-00-440-806-A [10]
  Reactivation of the Extract Fan - FAA Operators Only
- 21-26-00-440-807-A [10]
  Reactivation of the Extract Fan - FAA Operators Only
- 21-26-00-440-808-A [10]
  Reactivation of the Blower Fan - FAA Operators Only
- 21-26-00-040-001-A [10]
  Deactivation of the Skin Exchanger Inlet Bypass Valve
- 21-26-00-440-001-A [10]
  Reactivation of the Skin Exchanger Inlet Bypass valve
- 21-26-00-040-002-A [10]
  Deactivation of the Skin Air Outlet Valve in the Closed Position with the Internal Flap in the Open Position
- 21-26-00-440-002-A [10]
  Reactivation of the Skin Air Outlet Valve from the Closed Position
- 21-26-00-040-003-A [10]
  Deactivation of the Conditioned-Air Inlet Valve
- 21-26-00-440-003-A [10]
  Reactivation of the Conditioned-Air Inlet Valve
- 21-26-00-040-004-A [10]
  Deactivation of the Skin Air Inlet Valve
- 21-26-00-040-014-A [10]
  Skin Air-Inlet Valve Inoperative - Do the Deactivation of the Conditioned-Air Inlet Valve
- 21-26-00-440-802-A [10]
  Skin Air-Inlet Valve Inoperative - Do the Reactivation of the Conditioned-Air Inlet Valve
- 21-26-00-440-004-A [10]
  Reactivation of the Skin Air Inlet Valve
- 21-26-00-040-005-A [10]
  Avionics Equipment Ventilation Computer Inoperative (AEVC) - Check of the Ventilation System
- 21-26-00-440-005-A [10]
  Reactivation of the Avionics Equipment Ventilation Computer (AEVC)
- 21-26-00-040-006-A [10]
  Blower Fan Inoperative - Check that the Air Conditioned Inlet Valve is Open
- 21-26-00-440-006-A [10]
  Reactivation of the Blower Fan
- 21-26-00-040-013-A [10]
  Deactivation of the Conditioned-Air Inlet Valve when the Blower Fan is Inoperative
- 21-26-00-440-013-A [10]
  Reactivation of the Conditioned-Air Inlet Valve and of the Blower Fan
- 21-26-00-040-007-A [10]
  Extract Fan Inoperative - Check of Conditioned-Air Inlet Valve Open
- 21-26-00-040-015-A [10]
  Extract Fan Inoperative - Do the Deactivation of the Conditioned-Air Inlet Valve
- 21-26-00-440-015-A [10]
  Extract Fan Inoperative - Do the Reactivation of the Conditioned-Air Inlet Valve
- 21-26-00-440-007-A [10]
  Reactivation of the Extract Fan
- 21-26-00-040-008-A [10]
  Skin-Exchanger Isolation Valve Inoperative - Check of the Open Position of the Valve
- 21-26-00-040-016-A [10]
  Deactivation of the Skin-Exchanger Isolation Valve
- 21-26-00-440-008-A [10]
  Reactivation of the Skin-Exchanger Isolation Valve
- 21-26-00-040-009-A [10]
  Deactivation of the Avionics Ventilation Filter
- 21-26-00-040-017-A [10]
  Avionics Ventilation Filter Inoperative - Do the Deactivation of the Conditioned-Air Inlet Valve
- 21-26-00-440-009-A [10]
  Reactivation of the Avionics Ventilation Filter
- 21-26-00-040-010-A [10]
  Blower Fault Warning - Check of the Blower Fan and the VENT AVNCS SYS FAULT Warning
- 21-26-00-040-011-A [10]
  Extract Fault Warning - Check of the Extract Fan and the VENT AVNCS SYS FAULT Warning
- 21-26-00-040-012-A [10]
  ADIRU/AVNCS VENT Caution Light Inoperative
- 21-26-00-440-011-A [9]
  Reactivation of the Extract Fault Warning
PB.501 AVIONICS EQUIPMENT VENTILATION - ADJUSTMENT/TEST
- 21-26-00-710-001-A [10]
  Operational Check of the Avionics Equipment Ventilation-System via MCDU
- 21-26-00-710-001-A-01 [10]
  Operational Check of the Avionics Equipment Ventilation (without the CFDS)
- 21-26-00-710-002-A [10]
  Operational Check of Override Function (BLOWER and EXTRACT)
- 21-26-00-710-003-A [10]
  Operational Check of Smoke Configuration Control Circuit
- 21-26-00-710-004-A [10]
  Operational Check of Ditching Configuration Control Circuit
- 21-26-00-710-008-A [10]
  Operational Test to Read the CFDS for CLASS 3 Faults of the AEVC
- 21-26-00-710-009-A [10]
  Operational Test to Read the CFDS for LAST LEG REPORT of the AEVC
- 21-26-00-710-013-A [9]
  Operational Check of Fan High Speed Mode

21-26-11 PRESSURE SWITCHES - BLOWER AND EXTRACT FAN

PB.401 PRESSURE SWITCHES - BLOWER AND EXTRACT FAN - REMOVAL/INSTALLATION
- 21-26-11-000-001-A [10]
  Removal of the Avionics-Ventilation Blower and Extract Fan Pressure-Switches
- 21-26-11-400-001-A [10]
  Installation of the Avionics-Ventilation Blower and Extract Fan Pressure-Switches
PB.501 PRESSURE SWITCHES - BLOWER AND EXTRACT FAN - ADJUSTMENT/TEST
- 21-26-11-710-001-A [10]
  Operational Test of the Extract-Fan Pressure Switch (without the CFDS)

21-26-12 SENSOR - DUCT TEMPERATURE

PB.401 SENSOR - DUCT TEMPERATURE - REMOVAL/INSTALLATION
- 21-26-12-000-001-A [10]
  Removal of the Avionics Ventilation Duct Temperature Sensor
- 21-26-12-400-001-A [10]
  Installation of the Avionics Ventilation Duct Temperature Sensor
- 21-26-12-000-802-A [10]
  Removal of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
- 21-26-12-400-802-A [10]
  Installation of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
- 21-26-12-000-001-B [9]
  Removal of the Avionics Ventilation Duct Temperature Sensors
- 21-26-12-400-001-B [9]
  Installation of the Avionics Ventilation Duct Temperature Sensors

21-26-13 SENSOR - SKIN TEMPERATURE

PB.401 SENSOR - SKIN TEMPERATURE - REMOVAL/INSTALLATION
- 21-26-13-000-001-A [10]
  Removal of the Avionics Ventilation Skin Temperature Sensor
- 21-26-13-400-001-A [10]
  Installation of the Avionics Ventilation Skin Temperature Sensor
PB.501 SENSOR - SKIN TEMPERATURE - ADJUSTMENT/TEST
- 21-26-13-710-001-A [10]
  Operational Test of the Skin Temperature Sensor (without the CFDS)

21-26-34 COMPUTER - AVIONICS EQUIPMENT VENTILATION (AEVC)

PB.401 COMPUTER - AVIONICS EQUIPMENT VENTILATION (AEVC) - REMOVAL/INSTALLATION
- 21-26-34-000-001-A [10]
  Removal of the Avionics Equipment Ventilation Computer (AEVC)
- 21-26-34-400-001-A [10]
  Installation of the Avionics Equipment Ventilation Computer (AEVC)

21-26-35 CONTROLLER - AVIONICS VENTILATION FANS SPEED

PB.401 CONTROLLER - AVIONICS VENTILATION FANS SPEED - REMOVAL/INSTALLATION
- 21-26-35-000-001-A [9]
  Removal of the Avionics Ventilation Fans Speed Controller
- 21-26-35-400-001-A [9]
  Installation of the Avionics Ventilation Fans Speed Controller

21-26-41 CHECK VALVE

PB.401 CHECK VALVE - REMOVAL/INSTALLATION
- 21-26-41-000-001-A [10]
  Removal of the Check Valve
- 21-26-41-400-001-A [10]
  Installation of the Check Valve
- 21-26-41-000-002-A [10]
  Removal of the Air Extraction Duct
- 21-26-41-400-002-A [10]
  Installation of the Air Extraction Duct
PB.601 CHECK VALVE - INSPECTION/CHECK
- 21-26-41-210-001-A [10]
  Detailed Inspection of Check Valve Flappers for Condition and Operation

21-26-42 AVIONICS EQUIPMENT VENTILATION DUCTS

PB.401 AVIONICS EQUIPMENT VENTILATION DUCTS - REMOVAL/INSTALLATION
- 21-26-42-000-803-A [10]
  Removal of batteries vent duct
- 21-26-42-000-804-A [10]
  Removal of the Inlet Duct and the Outlet Duct of the Skin Heat Exchanger
- 21-26-42-400-803-A [10]
  Installation of batteries vent duct
- 21-26-42-400-804-A [10]
  Installation of the Inlet Duct and the Outlet Duct of the Skin Heat Exchanger
- 21-26-42-000-001-A [10]
  Removal of the Avionics Equipment Ventilation-Duct
- 21-26-42-400-001-A [10]
  Installation of the Avionics Equipment Ventilation-Duct
- 21-26-42-000-002-A [10]
  Removal of the Avionics Equipment Blowing and Extraction Ducts
- 21-26-42-400-002-A [10]
  Installation of the Avionics Equipment Blowing and Extraction Ducts
- 21-26-42-000-802-A [10]
  Removal of the Avionics Equipment Blowing-Duct
- 21-26-42-400-802-A [10]
  Installation of the Avionics Equipment Blowing-Duct
PB.601 AVIONICS EQUIPMENT VENTILATION DUCTS - INSPECTION/CHECK
- 21-26-42-200-001-A [10]
  Inspection/Check of the Skin Heat Exchanger (the Inlet Ducts and the Extraction Duct)
- 21-26-42-200-002-A [10]
  Inspection/Check of the Skin Heat Exchanger (Outlet Duct)
- 21-26-42-200-003-A [10]
  Detailed Inspection of Skin Heat Exchanger Drain Hose Connection Area
- 21-26-42-200-006-A [10]
  Check for Blockage of the Demister Filter and of the Filter Cartridge with the Pressure Ports
- 21-26-42-210-001-A [10]
  Detailed Inspection of Demister Drain Hose Connection Area
- 21-26-42-210-002-A [10]
  Detailed Inspection of Elbow Drain Hose Connection Area Downstream of Blower Fan
- 21-26-42-200-802-A [10]
  Inspection/Check of the Honeycomb Grids
- 21-26-42-200-004-A [8]
  Check the Demister Filter Element and the Filter Cartridge using Pressure Ports (LE BOZEC)

21-26-43 FILTER - DEMISTER

PB.301 CONF:[02] FILTER ASSY - AVIONICS VENTILATION - SERVICING
- 21-26-43-600-016-A [10]
  Discard Demister Filter Element and Filter Cartridge (LE BOZEC)
- 21-26-43-600-018-A [10]
  Servicing of the Demister Filter
- 21-26-43-600-019-A [10]
  Servicing of the Filter Cartridge
PB.401 CONF:[02] FILTER ASSY - AVIONICS VENTILATION - REMOVAL/INSTALLATION
- 21-26-43-000-003-A [10]
  Removal of the Filter Assembly
- 21-26-43-400-003-A [10]
  Installation of the Filter Assembly
- 21-26-43-920-001-A [10]
  Discard Filter Cartridge (PALL)
- 21-26-43-000-006-A [10]
  Removal of the Filter Assembly
- 21-26-43-400-006-A [10]
  Installation of the Filter Assembly
- 21-26-43-000-007-A [10]
  Removal of the Filter Assembly
- 21-26-43-400-007-A [10]
  Installation of the Filter Assembly
PB.501 CONF:[02] FILTER ASSY - AVIONICS VENTILATION - ADJUSTMENT/TEST
- 21-26-43-710-001-A [10]
  Operational Check of NRV for Free Movement
PB.701 CONF:[02] FILTER ASSY - AVIONICS VENTILATION - CLEANING/PAINTING
- 21-26-43-100-001-A [10]
  Inspection of the Siphon Assembly (Strainer) for Cleanliness

21-26-45 HEAT EXCHANGER - SKIN

PB.401 HEAT EXCHANGER - SKIN - REMOVAL/INSTALLATION
- 21-26-45-000-001-A [10]
  Removal of the Skin Heat Exchanger
- 21-26-45-400-001-A [10]
  Installation of the Skin Heat Exchanger

21-26-51 FANS - EXTRACT AND BLOWER

PB.401 FANS - EXTRACT AND BLOWER - REMOVAL/INSTALLATION
- 21-26-51-000-001-A [10]
  Removal of the Extract and Blower Fans
- 21-26-51-400-001-A [10]
  Installation of the Extract and Blower Fans
PB.501 FANS - EXTRACT AND BLOWER - ADJUSTMENT/TEST
- 21-26-51-710-001-A [10]
  Operational Test of the Extract and Blower Fans (without the CFDS)

21-26-52 VALVE - SKIN AIR INLET

PB.401 VALVE - SKIN AIR INLET - REMOVAL/INSTALLATION
- 21-26-52-000-001-A [10]
  Removal of the Avionics-Ventilation Skin Air-Inlet-Valve
- 21-26-52-400-001-A [10]
  Installation of the Avionics-Ventilation Skin Air-Inlet-Valve
- 21-26-52-400-001-A-01 [10]
  Installation of the Avionics-Ventilation Skin Air-Inlet-Valve (Alternative Procedure)
- 21-26-52-000-802-A [10]
  Removal of the Avionics-Ventilation Skin Air-Inlet-Valve for in Shop Overhaul

21-26-53 VALVE - SKIN AIR OUTLET

PB.401 VALVE - SKIN AIR OUTLET - REMOVAL/INSTALLATION
- 21-26-53-000-001-A [10]
  Removal of the Skin Air Outlet-Valve for In-Shop Overhaul
- 21-26-53-000-002-A [10]
  Removal of the Skin Air Outlet-Valve
- 21-26-53-400-001-A [10]
  Installation of the Skin Air Outlet-Valve
- 21-26-53-400-001-A-01 [10]
  Installation of the Avionics-Ventilation Skin Air-Outlet-Valve
- 21-26-53-000-803-A [10]
  Removal of the Avionics-Ventilation Skin Air-Outlet-Valve for in Shop Overhaul

21-26-54 VALVE - CONDITIONED AIR INLET

PB.401 VALVE - CONDITIONED AIR INLET - REMOVAL/INSTALLATION
- 21-26-54-000-001-A [10]
  Removal of the Conditioned Air Inlet-Valve
- 21-26-54-400-001-A [10]
  Installation of the Conditioned Air Inlet-Valve

21-26-55 VALVES - SKIN EXCHANGER

PB.401 VALVES - SKIN EXCHANGER - REMOVAL/INSTALLATION
- 21-26-55-000-001-B [10]
  Removal of the Avionics Ventilation Skin Exchanger Inlet Bypass Valve
- 21-26-55-400-001-B [10]
  Installation of the Avionics Ventilation Skin Exchanger Inlet Bypass Valve
- 21-26-55-000-002-A [10]
  Removal of the Avionics Ventilation Skin Exchanger Isolation Valve
- 21-26-55-400-002-A [10]
  Installation of the Avionics Ventilation Skin Exchanger Isolation Valve
- 21-26-55-000-003-A [10]
  Removal of the Avionics Ventilation Skin Exchanger Outlet Bypass Valve
- 21-26-55-400-003-A [10]
  Installation of the Avionics Ventilation Skin Exchanger Outlet Bypass Valve
PB.501 VALVES - SKIN EXCHANGER - ADJUSTMENT/TEST
- 21-26-55-710-001-A [10]
  Operational Test of the Skin-Exchanger Outlet Bypass-Valve without the Centralized Fault Display System (CFDS)

21-26-56 CHECK VALVE - AIR INLET

PB.401 CHECK VALVE - AIR INLET - REMOVAL/INSTALLATION
- 21-26-56-000-001-A [10]
  Removal of the Air Inlet Check Valve
- 21-26-56-400-001-A [10]
  Installation of the Air Inlet Check Valve
PB.501 CHECK VALVE - AIR INLET - ADJUSTMENT/TEST
- 21-26-56-280-002-A [10]
  Operational Check of Air Inlet Check Valve 2150HM